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Prof. Dr. Paitoon Tontiwachwuthikul
Clean Energy Technologies Research Institute (CETRI), Faculty of Engineering and Applied Science, University of Regina, 3737 Wascana Parkway, Regina, SK S4S0A2, Canada

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Research Keywords & Expertise

0 High efficiency processes for gas separation and purification
0 Carbon capture, utilization and storage (CCUS)
0 Greenhouse gas control technologies
0 Industrial pollution prevention and control
0 Novel technologies for CO2 recovery, production, and utilization

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Carbon capture, utilization and storage (CCUS)

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Original research article
Published: 17 May 2021 in Greenhouse Gases: Science and Technology
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In this research, a new set of experimental data for CO2 solubility in aqueous blended amine solvents were investigated experimentally over the CO2 partial pressure range from 8 to 100 kPa at 40 °C and were compared with the benchmark aqueous 30 wt.% MEA solution. This work developed two multilayer neural network models named models A and B, for predicting the CO2 solubility in various aqueous blended amine solvents including 36 wt.% MDEA + 17 wt.% PZ, 24 wt.% MDEA + 26 wt.% PZ, and 6 wt.% MEA + 25 wt.% MDEA + 17 wt.% PZ. Models A and B were developed by using Levenberg–Marquardt back propagation algorithm with 427 and 301 of reliable experimental data sets gathered from the published data, respectively. The results indicate that the high accuracy prediction of the CO2 solubility in Methyldiethanolamine/Piperazine (MDEA/PZ) blends could be obtained by the network developed by Tan‐sigmoid transfer function with two hidden layers consist of eight and four neurons, while the network developed by Tan‐sigmoid transfer function with three hidden layers consist of 20, 10, and five neurons provided the highest accuracy for predicting the CO2 solubility in MEA/MDEA/PZ blends comparing to other model structures. The comparison results show that the neural network modeling provided more closer predictions to the experimental results than the simulator and other thermodynamic models when predicting the CO2 equilibrium solubility in blended amine solvents. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd.

ACS Style

Tianci Li; Puttipong Tantikhajorngosol; Congning Yang; Paitoon Tontiwachwuthikul. Experimental investigations and developing multilayer neural network models for prediction of CO 2 solubility in aqueous MDEA/PZ and MEA/MDEA/PZ blends. Greenhouse Gases: Science and Technology 2021, 11, 712 -733.

AMA Style

Tianci Li, Puttipong Tantikhajorngosol, Congning Yang, Paitoon Tontiwachwuthikul. Experimental investigations and developing multilayer neural network models for prediction of CO 2 solubility in aqueous MDEA/PZ and MEA/MDEA/PZ blends. Greenhouse Gases: Science and Technology. 2021; 11 (4):712-733.

Chicago/Turabian Style

Tianci Li; Puttipong Tantikhajorngosol; Congning Yang; Paitoon Tontiwachwuthikul. 2021. "Experimental investigations and developing multilayer neural network models for prediction of CO 2 solubility in aqueous MDEA/PZ and MEA/MDEA/PZ blends." Greenhouse Gases: Science and Technology 11, no. 4: 712-733.

Journal article
Published: 31 March 2021 in International Journal of Greenhouse Gas Control
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The research conducted in the last five years can potentially paint a picture of the next generation’s research related to solvent development for post-combustion carbon dioxide capture. This paper presents a comprehensive summary of the research work in this field conducted in the period from 2015 to 2020. The work includes research efforts in the areas of: (i) solvent chemistry, which refers to the work conducted on solubility, reaction kinetics, nuclear magnetic resonance or NMR analysis for ion speciation, and alternative solvents, (ii) development of amine solvents, which includes development of catalyst and enhancement of current solvents with the aid of catalysts, (iii) a novel regeneration process called Electrochemically Mediated Amine Regeneration, and (iv) applications of artificial intelligence technologies to the carbon dioxide capture process. The paper can be considered an update discussion and summary of the research work conducted in diverse areas related to solvent development for post-combustion carbon dioxide capture since our review of the research area published in 2015.

ACS Style

Liu Helei; Puttipong Tantikhajorngosol; Christine Chan; Paitoon Tontiwachwuthikul. Technology development and applications of artificial intelligence for post-combustion carbon dioxide capture: Critical literature review and perspectives. International Journal of Greenhouse Gas Control 2021, 108, 103307 .

AMA Style

Liu Helei, Puttipong Tantikhajorngosol, Christine Chan, Paitoon Tontiwachwuthikul. Technology development and applications of artificial intelligence for post-combustion carbon dioxide capture: Critical literature review and perspectives. International Journal of Greenhouse Gas Control. 2021; 108 ():103307.

Chicago/Turabian Style

Liu Helei; Puttipong Tantikhajorngosol; Christine Chan; Paitoon Tontiwachwuthikul. 2021. "Technology development and applications of artificial intelligence for post-combustion carbon dioxide capture: Critical literature review and perspectives." International Journal of Greenhouse Gas Control 108, no. : 103307.

Journal article
Published: 04 August 2020 in Petroleum
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ACS Style

Paitoon (Pt) Tontiwachwuthikul; Christine W. Chan; Fanhua (Bill) Zeng; Zhiwu (Henry) Liang; Teerawat Sema; Chao Min. Recent progress and new developments of applications of artificial intelligence (AI), knowledge-based systems (KBS), and Machine Learning (ML) in the petroleum industry. Petroleum 2020, 6, 319 -320.

AMA Style

Paitoon (Pt) Tontiwachwuthikul, Christine W. Chan, Fanhua (Bill) Zeng, Zhiwu (Henry) Liang, Teerawat Sema, Chao Min. Recent progress and new developments of applications of artificial intelligence (AI), knowledge-based systems (KBS), and Machine Learning (ML) in the petroleum industry. Petroleum. 2020; 6 (4):319-320.

Chicago/Turabian Style

Paitoon (Pt) Tontiwachwuthikul; Christine W. Chan; Fanhua (Bill) Zeng; Zhiwu (Henry) Liang; Teerawat Sema; Chao Min. 2020. "Recent progress and new developments of applications of artificial intelligence (AI), knowledge-based systems (KBS), and Machine Learning (ML) in the petroleum industry." Petroleum 6, no. 4: 319-320.

Journal article
Published: 15 May 2020 in Energies
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For the envisaged large number of commercial-scale carbon capture and storage (CCS) projects that are to be implemented in the near future, a number of issues still need to be resolved, the most prominent being the large capital and operational costs incurred for the CO2 capture and compression process. An economic assessment of the capture and compression system based on optimal design data is important for CCS deployment. In this paper, the parametric process design approach is used to optimally design coal and natural gas monoethanolamine (MEA)-based post-combustion CO2 absorption–desorption capture (PCC) and compression plants that can be integrated into large-scale 550 MW coal-fired and 555 MW natural gas combined cycle (NGCC) power plants, respectively, for capturing CO2 from their flue gases. The study then comparatively assesses the energy performance and economic viabilities of both plants to ascertain their operational feasibilities and relative costs. The parametric processes are presented and discussed. The results indicate that, at 90% CO2 capture efficiency, for the coal PCC plant, with 13.5 mol.% CO2 in the inlet flue gas, at an optimum liquid/gas ratio of 2.87 kg/kg and CO2 lean loading of 0.2082 mol CO2/mol MEA, the CO2 avoidance cost is about $72/tCO2, and, for the NGCC PCC plant, with 4.04 mol.% CO2 in the inlet flue gas, at an optimum liquid/gas ratio of 0.98 kg/kg and CO2 lean loading of 0.2307 mol CO2/mol MEA, the CO2 avoidance cost is about $94/tCO2.

ACS Style

Emmanuel Adu; Y.D. Zhang; Dehua Liu; Paitoon Tontiwachwuthikul. Parametric Process Design and Economic Analysis of Post-Combustion CO2 Capture and Compression for Coal- and Natural Gas-Fired Power Plants. Energies 2020, 13, 2519 .

AMA Style

Emmanuel Adu, Y.D. Zhang, Dehua Liu, Paitoon Tontiwachwuthikul. Parametric Process Design and Economic Analysis of Post-Combustion CO2 Capture and Compression for Coal- and Natural Gas-Fired Power Plants. Energies. 2020; 13 (10):2519.

Chicago/Turabian Style

Emmanuel Adu; Y.D. Zhang; Dehua Liu; Paitoon Tontiwachwuthikul. 2020. "Parametric Process Design and Economic Analysis of Post-Combustion CO2 Capture and Compression for Coal- and Natural Gas-Fired Power Plants." Energies 13, no. 10: 2519.

Journal article
Published: 21 October 2019 in Separation and Purification Technology
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One of the energy-efficient approach was to adopt amine blends with the combination of heterogeneous catalysts as a new solution for an amine scrubbing process of a coal-fired pilot plant. The major challenge was the contradiction that the energy-efficient amine solvents in the desorber usually behave poorly in the absorber. This study re-investigated the “coordination effect” of “MEA + DEA amine blends” and “heterogeneous catalytic CO2 absorption and CO2 desorption” in theory first, and then conducted the heterogeneous catalytic CO2 absorption with solid alkaline catalyst and CO2 desorption with solid acid catalysts onto 1 + 4 ~ 2 + 3 mol/L MEA + DEA blends. After the comprehensive analyses of the “absorption parameter” and “desorption parameter” into 1.25 + 3.75 to 2 + 3 mol/L blended amines with CaCO3 and blended γ-Al2O3 + H-ZSM-5(2:1), it’s found that the most suitable combination was 1.50 + 3.50 mol/L MEA + DEA with heterogeneous catalysis. This combination was more suitable and applicable to both absorber and desorber with catalytic packing than 2 + 3 mol/L MEA + DEA in an amine scrubbing process of capture pilot plant.

ACS Style

Huancong Shi; Junxing Fu; Qiming Wu; Min Huang; Linhua Jiang; Mingqi Cui; Raphael Idem; Paitoon Tontiwachwuthikul. Studies of the coordination effect of DEA-MEA blended amines (within 1 + 4 to 2 + 3 M) under heterogeneous catalysis by means of absorption and desorption parameters. Separation and Purification Technology 2019, 236, 116179 .

AMA Style

Huancong Shi, Junxing Fu, Qiming Wu, Min Huang, Linhua Jiang, Mingqi Cui, Raphael Idem, Paitoon Tontiwachwuthikul. Studies of the coordination effect of DEA-MEA blended amines (within 1 + 4 to 2 + 3 M) under heterogeneous catalysis by means of absorption and desorption parameters. Separation and Purification Technology. 2019; 236 ():116179.

Chicago/Turabian Style

Huancong Shi; Junxing Fu; Qiming Wu; Min Huang; Linhua Jiang; Mingqi Cui; Raphael Idem; Paitoon Tontiwachwuthikul. 2019. "Studies of the coordination effect of DEA-MEA blended amines (within 1 + 4 to 2 + 3 M) under heterogeneous catalysis by means of absorption and desorption parameters." Separation and Purification Technology 236, no. : 116179.

Thermodynamics and molecular scale phenomena
Published: 28 March 2019 in AIChE Journal
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1‐(2‐Hydoxyethyl)‐piperidine (1‐(2HE)‐PP) is a new tertiary amine with desirable properties and can be potentially used to formulate superior absorbents for CO2 capture. The equilibrium CO2 solubility of 1‐(2HE)‐PP solution is measured over temperatures from 298 to 333 K, CO2 partial pressures from 8.1 to 101.3 kPa and initial amine concentrations from 1 to 5 M. Two thermodynamic models, namely semiempirical model and activity coefficient model are developed for the system. The activity coefficient model shows better estimation solubility with an absolute average relative deviation (AARD) of 7.6%. In the comparison between the two models, a comprehensive analysis is presented. Some suggestions are provided for the similar model development. In addition, the speciation plot of CO2 loaded 1‐(2HE)‐PP solution is predicted based on the activity coefficient model. The predictive pH values agree well with experimental data with AARD of 1.0%. Finally, the potential of 1‐(2‐HE)PP to be an alternative amine in CO2 capture is evaluated.

ACS Style

Min Xiao; Wenchao Zheng; Helei Liu; Paitoon Tontiwachwuthikul; Zhiwu Liang. Analysis of equilibrium CO 2 solubility and thermodynamic models for aqueous 1‐(2‐hydoxyethyl)‐piperidine solution. AIChE Journal 2019, 65, 1 .

AMA Style

Min Xiao, Wenchao Zheng, Helei Liu, Paitoon Tontiwachwuthikul, Zhiwu Liang. Analysis of equilibrium CO 2 solubility and thermodynamic models for aqueous 1‐(2‐hydoxyethyl)‐piperidine solution. AIChE Journal. 2019; 65 (6):1.

Chicago/Turabian Style

Min Xiao; Wenchao Zheng; Helei Liu; Paitoon Tontiwachwuthikul; Zhiwu Liang. 2019. "Analysis of equilibrium CO 2 solubility and thermodynamic models for aqueous 1‐(2‐hydoxyethyl)‐piperidine solution." AIChE Journal 65, no. 6: 1.

Journal article
Published: 23 March 2019 in Fuel
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This work investigates the carbon dioxide (CO2) equilibrium solubility of seven novel tertiary amines, which include 1-(2-Hydroxyethyl)pyrrolidine (1-(2-HE)PRLD), 4-((2-hydroxyethyl)(ethyl)amino)-2-butanol (HEEAB), 3-diethylamino-1,2-propanediol (DE-1,2-PD), 4-(dipropylamino)-2-butanol (DPAB), 1-(2-Hydroxyethyl)-piperidine (1-(2-HE)PP), 4-((2-hydroxyethyl)(methyl)amino)-2-butanol (HEMAB) and 4-(dimethylamino)-2-butanol (DMAB). This analysis study was conducted at the amine concentration of 2.0 mol/L, over the temperature range of 298–333 K, and over the CO2 partial pressure range of 3–101 kPa. Two approaches were adopted in this study. Some thermodynamic models were employed to correlate and predict the experimental results of CO2 equilibrium solubility in the seven novel tertiary amines solution. The new Helei-Liu model and Liu et al. model for K2 correlation were also developed. A comparison of the performances of these models in predicting CO2 solubility showed that the Liu et al. model, which included the significant parameters of temperature, concentration of amine solution, physical solubility of CO2, and total pressure, gave the best performance in predicting CO2 equilibrium solubility in the newly formulated amine solutions. In addition, the artificial neutral network (ANN) approach was adopted for predicting the CO2 equilibrium solubility of the seven tertiary amines. The predicted values of CO2 solubility extracted from the ANN models were compared with those from the thermodynamic models in terms of the absolute average deviation (AAD).

ACS Style

Helei Liu; Christine Chan; Paitoon Tontiwachwuthikul; Raphael Idem. Analysis of CO2 equilibrium solubility of seven tertiary amine solvents using thermodynamic and ANN models. Fuel 2019, 249, 61 -72.

AMA Style

Helei Liu, Christine Chan, Paitoon Tontiwachwuthikul, Raphael Idem. Analysis of CO2 equilibrium solubility of seven tertiary amine solvents using thermodynamic and ANN models. Fuel. 2019; 249 ():61-72.

Chicago/Turabian Style

Helei Liu; Christine Chan; Paitoon Tontiwachwuthikul; Raphael Idem. 2019. "Analysis of CO2 equilibrium solubility of seven tertiary amine solvents using thermodynamic and ANN models." Fuel 249, no. : 61-72.

Journal article
Published: 13 March 2019 in Molecules
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Studies of catalytic CO₂ absorption and desorption were completed in two well-performed tertiary amines: diethylmonoethanolamine (DEEA) and 1-dimethylamino-2-propanol (1DMA-2P), with the aid of CaCO₃ and MgCO₃ in the absorption process, and with the aid of γ-Al₂O₃ and H-ZSM-5 in the desorption process. The batch process was used for CO₂ absorption with solid alkalis, and the recirculation process was used for CO₂ desorption with solid acid catalysts. The CO₂ equilibrium solubility and pKa were also measured at 293 K with results comparable to the literature. The catalytic tests discovered that the heterogeneous catalysis of tertiary amines on both absorption and desorption sides were quite different from monoethanolamine (MEA) and diethanolamine (DEA). These results were illustrative as a start-up to further study of the kinetics of heterogeneous catalysis of CO₂ to tertiary amines based on their special reaction schemes and base-catalyzed hydration mechanism.

ACS Style

Huancong Shi; Min Huang; Qiming Wu; Linna Zheng; Lifeng Cui; Shuping Zhang; Paitoon Tontiwachwuthikul. Study of Catalytic CO₂ Absorption and Desorption with Tertiary Amine DEEA and 1DMA-2P with the Aid of Solid Acid and Solid Alkaline Chemicals. Molecules 2019, 24, 1009 .

AMA Style

Huancong Shi, Min Huang, Qiming Wu, Linna Zheng, Lifeng Cui, Shuping Zhang, Paitoon Tontiwachwuthikul. Study of Catalytic CO₂ Absorption and Desorption with Tertiary Amine DEEA and 1DMA-2P with the Aid of Solid Acid and Solid Alkaline Chemicals. Molecules. 2019; 24 (6):1009.

Chicago/Turabian Style

Huancong Shi; Min Huang; Qiming Wu; Linna Zheng; Lifeng Cui; Shuping Zhang; Paitoon Tontiwachwuthikul. 2019. "Study of Catalytic CO₂ Absorption and Desorption with Tertiary Amine DEEA and 1DMA-2P with the Aid of Solid Acid and Solid Alkaline Chemicals." Molecules 24, no. 6: 1009.

Journal article
Published: 06 February 2019 in Processes
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: Reduction of carbon dioxide emission from natural and industrial flue gases is paramount to help mitigate its effect on global warming. Efforts are continuously deployed worldwide to develop efficient technologies for CO2 capture. The use of environment friendly amino acids as rate promoters in the present amine systems has attracted the attention of many researchers recently. In this work, the reaction kinetics of carbon dioxide with blends of N-methyldiethanolamine and L-Arginine was investigated using stopped flow technique. The experiments were performed over a temperature range of 293 to 313 K and solution concentration up to one molar of different amino acid/amine ratios. The overall reaction rate constant (kov) was found to increase with increasing temperature and amine concentration as well as with increased proportion of L-Arginine concentration in the mixture. The experimental data were fitted to the zwitterion and termolecular mechanisms using a nonlinear regression technique with an average absolute deviation (AAD) of 7.6% and 8.0%, respectively. A comparative study of the promoting effect of L-Arginine with that of the effect of Glycine and DEA in MDEA blends showed that MDEA-Arginine blend exhibits faster reaction rate with CO2 with respect to MDEA-DEA blend, while the case was converse when compared to the MDEA-Glycine blend.

ACS Style

Nafis Mahmud; Abdelbaki Benamor; Mustafa Nasser; Muftah H. El-Naas; Paitoon Tontiwachwuthikul. Reaction Kinetics of Carbon Dioxide in Aqueous Blends of N-Methyldiethanolamine and L-Arginine Using the Stopped-Flow Technique. Processes 2019, 7, 81 .

AMA Style

Nafis Mahmud, Abdelbaki Benamor, Mustafa Nasser, Muftah H. El-Naas, Paitoon Tontiwachwuthikul. Reaction Kinetics of Carbon Dioxide in Aqueous Blends of N-Methyldiethanolamine and L-Arginine Using the Stopped-Flow Technique. Processes. 2019; 7 (2):81.

Chicago/Turabian Style

Nafis Mahmud; Abdelbaki Benamor; Mustafa Nasser; Muftah H. El-Naas; Paitoon Tontiwachwuthikul. 2019. "Reaction Kinetics of Carbon Dioxide in Aqueous Blends of N-Methyldiethanolamine and L-Arginine Using the Stopped-Flow Technique." Processes 7, no. 2: 81.

Journal article
Published: 23 January 2019 in International Journal of Greenhouse Gas Control
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This research is a bench-scale pilot plant investigation of novel amine solvent blend containing MDEA and 1,5-diamino-2-methylpentane (DA2MP) for CO2 capture from water-gas shift process plant (H2 production). The CO2 concentration used in this study (50 vol.% CO2 with N2 balance) is similar to that of the water-gas shift product gas. The CO2 capture performance of the MDEA-DA2MP blend was compared to the standard 3 kmol/m3 MDEA-0.5 kmol/m3 PZ blend (34.4 wt.% MDEA-5 wt.% PZ). The low concentration of PZ in this study is because of the chemical toxicity of PZ and possible precipitation at medium to high concentration. The MDEA concentration in the MDEA-DA2MP blend was kept constant at 3 kmol/m3 while the DA2MP was varied from 0.5 kmol/m3 (6.75 wt.%) to 1.5 kmol/m3 (20.3 wt.%). The pilot plant analysis was performed at a gas flow rate, amine solution flow rate, and reboiler temperature of 14 SLPM, 50 mL/min, and 120 °C respectively. Pilot plant results revealed that the higher MDEA-DA2MP blend concentration possesses higher CO2 capture efficiency (up to 24%), higher CO2 absorption rate (up to 23.5%) and higher absorber mass transfer coefficient (up to 23.9%) compared to the MDEA-PZ blend. It was also discovered that the high MDEA-DA2MP concentration has lower regeneration energy (up to 25.4%), lower initial amine solution utilized (up to 20.5%), lower desorber mass transfer coefficient (up to 32.5%) compared to the MDEA-PZ blend. However, the optimal amine concentration is the 3 kmol/m3 MDEA-1 kmol/m3 DA2MP blend. Overall results show that the MDEA-DA2MP blend can offer a cost-effective and energy efficient CO2 capture compared to MDEA-PZ.

ACS Style

Chikezie Nwaoha; Paitoon Tontiwachwuthikul; Abdelbaki Benamor. CO2 capture from water-gas shift process plant: Comparative bench-scale pilot plant investigation of MDEA-PZ blend vs novel MDEA activated by 1,5-diamino-2-methylpentane. International Journal of Greenhouse Gas Control 2019, 82, 218 -228.

AMA Style

Chikezie Nwaoha, Paitoon Tontiwachwuthikul, Abdelbaki Benamor. CO2 capture from water-gas shift process plant: Comparative bench-scale pilot plant investigation of MDEA-PZ blend vs novel MDEA activated by 1,5-diamino-2-methylpentane. International Journal of Greenhouse Gas Control. 2019; 82 ():218-228.

Chicago/Turabian Style

Chikezie Nwaoha; Paitoon Tontiwachwuthikul; Abdelbaki Benamor. 2019. "CO2 capture from water-gas shift process plant: Comparative bench-scale pilot plant investigation of MDEA-PZ blend vs novel MDEA activated by 1,5-diamino-2-methylpentane." International Journal of Greenhouse Gas Control 82, no. : 218-228.

Book
Published: 01 January 2019 in Engineering Aspects of Geologic CO2 Storage
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This book presents a comprehensive review of the most recent information available on all aspects of the post-combustion carbon capture process. It provides designers and operators of amine solvent-based CO2 capture plants with an in-depth understanding of the most up-to-date fundamental chemistry and physics of the CO2 absorption technologies using amine-based reactive solvents. Topics covered include physical properties, chemical analysis, reaction kinetics, CO2 solubility, and innovative configurations of absorption and stripping columns as well as information on technology applications.Post-Combustion CO2 Capture Technology also covers the post-build operational issues of corrosion prevention and control, solvent management, solvent stability, solvent recycling and reclaiming, intelligent monitoring and plant control including process automation. In addition, the authors discuss the most up-to-date insights related to the theoretical basis of plant operation in terms of thermodynamics, transport phenomena, chemical reaction kinetics/engineering, interfacial phenomena, and materials.The insights provided will help engineers, scientists, and decision makers working in academia, industry and government gain a better appreciation of the post-combustion carbon capture technology.

ACS Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. Post-combustion CO2 Capture Technology. Engineering Aspects of Geologic CO2 Storage 2019, 1 .

AMA Style

Helei Liu, Raphael Idem, Paitoon Tontiwachwuthikul. Post-combustion CO2 Capture Technology. Engineering Aspects of Geologic CO2 Storage. 2019; ():1.

Chicago/Turabian Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. 2019. "Post-combustion CO2 Capture Technology." Engineering Aspects of Geologic CO2 Storage , no. : 1.

Journal article
Published: 06 November 2018 in Journal of Environmental Chemical Engineering
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This experimental study covered pilot plant analysis of novel AMP and 1,5–diamino–2–methylpentane (DA2MP) amine solvent blend for CO2 capture from a lime kiln. The gas flow rate (F(GAS)), amine solution flow rate (F(amine)), CO2 concentration and reboiler temperature (T(REB)) were kept at 14 SLPM, 50 mL/min, 30 vol.% CO2 (N2 balance) and 120 °C respectively. The AMP concentration was kept at 2 kmol/m3 while DA2MP was varied from 1.5 kmol/m3 to 2 kmol/m3. The MEA and AMP-DA2MP comparative analysis was based on rich amine loading (αrich, mol CO2/mol amine), lean amine loading (αlean, mol CO2/mol amine), cyclic loading (CL, mol CO2/mol amine), cyclic capacity (CC, mol CO2/L–amine soln.), CO2 absorption rate (rabs, g–CO2/hr), CO2 absorption efficiency (%), regeneration energy (Qreg, GJ/tonne CO2), absorber overall average volumetric mass transfer coefficient (KGav(ave), kmol/kPa.hr. m3), desorber mass transfer coefficient (KLav, hr–1), initial amine solution utilized (Aminesoln._utilized, g-amine soln./g-CO2) and initial amine solution cost (US$/g-CO2). The influence of sensible energy (Qsen, GJ/tonne CO2), vaporization energy (Qvap, GJ/tonne CO2), and desorption heat (ΔHdes, GJ/tonne CO2) towards regeneration energy (Qreg) was also examined. Results showed that the AMP-DA2MP blend possesses higher CO2 absorption efficiency (up to 36.17%), higher KGav(ave) (up to 65.85%), higher KLav (up to 28.29%) and lower Qreg (up to 32.54%) compared to the single solvent MEA. Also, MEA possessed higher initial amine solution utilized (28.86%) and lower initial amine solution cost (28.5%) compared to the AMP-DA2MP blend. This is an initial revelation that AMP-DA2MP can provide cost-effective CO2 capture from a lime kiln.

ACS Style

Chikezie Nwaoha; Paitoon Tontiwachwuthikul; Abdelbaki Benamor. CO2 capture from lime kiln using AMP-DA2MP amine solvent blend: A pilot plant study. Journal of Environmental Chemical Engineering 2018, 6, 7102 -7110.

AMA Style

Chikezie Nwaoha, Paitoon Tontiwachwuthikul, Abdelbaki Benamor. CO2 capture from lime kiln using AMP-DA2MP amine solvent blend: A pilot plant study. Journal of Environmental Chemical Engineering. 2018; 6 (6):7102-7110.

Chicago/Turabian Style

Chikezie Nwaoha; Paitoon Tontiwachwuthikul; Abdelbaki Benamor. 2018. "CO2 capture from lime kiln using AMP-DA2MP amine solvent blend: A pilot plant study." Journal of Environmental Chemical Engineering 6, no. 6: 7102-7110.

Chapter
Published: 26 September 2018 in Engineering Aspects of Geologic CO2 Storage
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The application of the post combustion CO2 capture technology in the industry, a large amount of research need to be addressed in order to decrease the cost. The purpose of the pilot plants or demonstration plants is to find the issues which may not observed in the fundamental research. Another purpose of this study is to confirm the stimulation of process configuration. A pilot and demonstration plant study for the CO2 capture process is a vital step to go to the commercial step. The critical information generated from those plants could provide the guideline to build the commercial plant. Thus, a lot of research on pilot have been conducted in the past decades for different amines solvents in the different process configurations. In this chapter, the summary of the recent study on the pilot plant are discussed in term of capacity, region, solvent technology, and status. In addition, the demonstration plants in terms of size, feedstock, solvent, status, and CO2 fate are provided as well in this chapter.

ACS Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. Pilot and Demonstration Plants. Engineering Aspects of Geologic CO2 Storage 2018, 47 -51.

AMA Style

Helei Liu, Raphael Idem, Paitoon Tontiwachwuthikul. Pilot and Demonstration Plants. Engineering Aspects of Geologic CO2 Storage. 2018; ():47-51.

Chicago/Turabian Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. 2018. "Pilot and Demonstration Plants." Engineering Aspects of Geologic CO2 Storage , no. : 47-51.

Chapter
Published: 26 September 2018 in Engineering Aspects of Geologic CO2 Storage
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In this chapter, the method about selection of amine solvent for CO2 capture plant was proposed in order to improve the efficiency of the process. The properties of amines solvents related to CO2 capture were discussed in order to design the plant based on the selected amines. The physical properties (i.e. density, viscosity, specific heat capacity, Henry’s law constant, and diffusivity) are very key parameters for design of the plant or determination the performance of solvent. The measurement of those physical properties are also present in this chapter. Also, the present correlations for the experimental results of Henry’s law constant and the diffusivity are discussed. In addition, some chemical properties related to the reaction of amines and CO2 such as the solubility, reaction kinetics should be addressed before the further study. Those parameter determine the capacity of solvent or the reaction rate of the solvent, which are necessary for the process design or process stimulation. In order to understand the process of reaction, the ions speciation plots are studied by using the different methods, which are added in this chapter. The trend of the new solvent and the improvement of the current solvent are discussed in this chapter.

ACS Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. Solvent Property of Amine Based Solvents. Engineering Aspects of Geologic CO2 Storage 2018, 7 -22.

AMA Style

Helei Liu, Raphael Idem, Paitoon Tontiwachwuthikul. Solvent Property of Amine Based Solvents. Engineering Aspects of Geologic CO2 Storage. 2018; ():7-22.

Chicago/Turabian Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. 2018. "Solvent Property of Amine Based Solvents." Engineering Aspects of Geologic CO2 Storage , no. : 7-22.

Chapter
Published: 26 September 2018 in Engineering Aspects of Geologic CO2 Storage
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Design is the key step for the commercial process of post combustion CO2 capture by using the amines based solvents. Also, the simulation of the CO2 capture process could provide the guideline or more information for the design. The improvement or enhancement of the process configuration could be achieved by using the simulation. This chapter consists of two main sections. One is the methods for determination of column height for CO2 absorber. The procedure for column design are present in order to get the final destination of column height. Four different method are discussed in this part. Another is about the developed process configurations for post combustion CO2 capture. In this part, the present development for the process improvement of post combustion CO2 capture are discussed in terms of absorber, stripper, and economizer modification. All detailed development are shown in this chapter in order to give the clear picture of the process configurations development for post combustion CO2 capture.

ACS Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. Design, Modeling and Simulation of Post Combustion CO2 Capture Systems Using Reactive Solvents. Engineering Aspects of Geologic CO2 Storage 2018, 23 -27.

AMA Style

Helei Liu, Raphael Idem, Paitoon Tontiwachwuthikul. Design, Modeling and Simulation of Post Combustion CO2 Capture Systems Using Reactive Solvents. Engineering Aspects of Geologic CO2 Storage. 2018; ():23-27.

Chicago/Turabian Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. 2018. "Design, Modeling and Simulation of Post Combustion CO2 Capture Systems Using Reactive Solvents." Engineering Aspects of Geologic CO2 Storage , no. : 23-27.

Chapter
Published: 26 September 2018 in Engineering Aspects of Geologic CO2 Storage
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Recently the worsening global warming issue caused by emissions and accumulation of greenhouse gases in the atmosphere has become a subject of public concern. Carbon dioxide (CO2) is widely considered as the predominant contributor of greenhouse gases. The post combustion CO2 capture technology is one of the commonly used technologies for dealing with CO2 emissions. The absorption of CO2 into aqueous amine solution is regarded to be one of the most promising technologies for post combustion CO2 capture due to its maturity, cost effectiveness, and capacity to handle large amounts of exhaust streams. In this chapter, the general information about the CO2 capture is present. The comparison of the several technologies for CO2 capture is also discussed in order to give the detail about the advantages and disadvantages for each technology. In addition, the detailed introduction about the post combustion CO2 capture by using the amine based solvent is provided in this chapter.

ACS Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. Introduction and Background Information. Engineering Aspects of Geologic CO2 Storage 2018, 1 -5.

AMA Style

Helei Liu, Raphael Idem, Paitoon Tontiwachwuthikul. Introduction and Background Information. Engineering Aspects of Geologic CO2 Storage. 2018; ():1-5.

Chicago/Turabian Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. 2018. "Introduction and Background Information." Engineering Aspects of Geologic CO2 Storage , no. : 1-5.

Chapter
Published: 26 September 2018 in Engineering Aspects of Geologic CO2 Storage
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In the operational process for the post combustion CO2 capture plant, there are several issues related to the cost of plant, which need be addressed. Among those issues, the corrosion and the degradation are the emergency problems when the plant is running. The corrosion and degradation could create the problems for the plant, which leads to the shutdown of the plant. The main parts are the corrosion and degradation. In this chapter, the corrosion is discussed in detail. The effect of corrosion and the solution of the corrosion are presented in this chapter in order to provide the more information for decrease the corrosion in the CO2 capture plant. In addition, the degradation is discussed as well. The two different types of degradation as oxidative degradation and thermal degradation are covered in this chapter. The mechanism of degradation are presented in this chapter to understand the process of degradation. The solution to solve this issue is provided in order to exclude the degradation.

ACS Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. Solvent Management. Engineering Aspects of Geologic CO2 Storage 2018, 29 -45.

AMA Style

Helei Liu, Raphael Idem, Paitoon Tontiwachwuthikul. Solvent Management. Engineering Aspects of Geologic CO2 Storage. 2018; ():29-45.

Chicago/Turabian Style

Helei Liu; Raphael Idem; Paitoon Tontiwachwuthikul. 2018. "Solvent Management." Engineering Aspects of Geologic CO2 Storage , no. : 29-45.

Journal article
Published: 04 September 2018 in AIChE Journal
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In this work, the composite catalysts, SO42/ZrO2/γ‐Al2O3 (SZA), with different ZrO2 and γ‐Al2O3 mass ratios were prepared and used for the first time for the CO2‐loaded monoethanolamine (MEA) solvent regeneration process in order to reduce the heat duty. The regeneration characteristics with five catalysts (three SZA catalysts and two parent catalysts) of a 5 M MEA solution with an initial CO2 loading of 0.5 mol CO2/mol amine at 98 °C were investigated in terms of CO2 desorption performance and compared with those of a blank test. All the catalysts were characterized using XRD, FT‐IR, N2 adsorption‐desorption isotherms, NH3‐TPD and Py‐IR. The results indicate that the SZA catalysts exhibited superior catalytic activity to the parent catalysts. A possible catalytic mechanism for the CO2 desorption process over SZA catalyst was proposed. The results reveal that SZA1/1, which possesses the highest joint value of Brϕnsted acid sites (BAS) and mesopore surface area (MSA), presented the highest catalytic performance, decreasing the heat duty by 36.9% as compared to the catalyst‐free run. The SZA1/1 catalyst shows the best catalytic performance as compared with the reported catalyst for this purpose. Moreover, the SZA catalyst has advantages of low cost, good cyclic stability, easy regeneration and has no effect on the CO2 absorption performance of MEA. This article is protected by copyright. All rights reserved.

ACS Style

Xiaowen Zhang; Jieling Hong; Helei Liu; Xiao Luo; Wilfred Olson; Paitoon Tontiwachwuthikul; Zhiwu Liang. SO4 2− /ZrO2 supported on γ-Al2 O3 as a catalyst for CO2 desorption from CO2 -loaded monoethanolamine solutions. AIChE Journal 2018, 64, 3988 -4001.

AMA Style

Xiaowen Zhang, Jieling Hong, Helei Liu, Xiao Luo, Wilfred Olson, Paitoon Tontiwachwuthikul, Zhiwu Liang. SO4 2− /ZrO2 supported on γ-Al2 O3 as a catalyst for CO2 desorption from CO2 -loaded monoethanolamine solutions. AIChE Journal. 2018; 64 (11):3988-4001.

Chicago/Turabian Style

Xiaowen Zhang; Jieling Hong; Helei Liu; Xiao Luo; Wilfred Olson; Paitoon Tontiwachwuthikul; Zhiwu Liang. 2018. "SO4 2− /ZrO2 supported on γ-Al2 O3 as a catalyst for CO2 desorption from CO2 -loaded monoethanolamine solutions." AIChE Journal 64, no. 11: 3988-4001.

Journal article
Published: 01 September 2018 in International Journal of Greenhouse Gas Control
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This study used ProMax® 4.0 process simulator (rate–based model) to conduct a parametric sensitivity of carbon dioxide (CO2) capture from a 115 MW coal–fired power plant (Boundary Dam 3 power plant) using monoethanolamine (MEA) and diethanolamine (DEA) blend. Saskatchewan Power Corporation (SaskPower), Canada provided the flue gas composition used in this study. The validated simulation was used to determine the effects of some process variables (independent process variables) on different dependent process variables. The independent process variables are flue gas temperature (TFG, oC), lean amine temperature (TLA, oC), lean amine flow rate (FLA, tonne/day), lean amine concentration difference (CMEA–DEA, kmol/m3) and reboiler temperature (TREB, oC). The dependent process variables are MEA and DEA vaporization from the absorber, CO2 absorption efficiency (%), regeneration energy (GJ/tonne CO2), rich amine loading (RAL, mol CO2/mol amine) and lean amine loading (LAL, mol CO2/mol amine). Amine degradation was investigated by the O2 absorption rate (tonne O2/day), NO absorption rate (tonne NO/day) and NO2 absorption rate (tonne NO2/day). The vaporization rates of MEA (tonne MEA/day) and DEA (tonne DEA/day) were also investigated. The contribution of amine and water make–up costs, regeneration energy, pump electrical energy, blower electrical energy and compressor electrical energy towards variable operating expenditure (V–OPEX) were also investigated. Results showed that NO also contributes to amine degradation. From the parametric analysis it was observed that TREB has the greatest influence on most of the dependent process variables. It was also discovered that the regeneration energy, compressor electrical energy and amine, water make–up cost and cooling water contributed 82.5%, 12.3%, 1.1%, 0.9% and 0.5% of the V–OPEX respectively.

ACS Style

Chikezie Nwaoha; David W. Smith; Raphael Idem; Paitoon Tontiwachwuthikul. Process simulation and parametric sensitivity study of CO2 capture from 115 MW coal–fired power plant using MEA–DEA blend. International Journal of Greenhouse Gas Control 2018, 76, 1 -11.

AMA Style

Chikezie Nwaoha, David W. Smith, Raphael Idem, Paitoon Tontiwachwuthikul. Process simulation and parametric sensitivity study of CO2 capture from 115 MW coal–fired power plant using MEA–DEA blend. International Journal of Greenhouse Gas Control. 2018; 76 ():1-11.

Chicago/Turabian Style

Chikezie Nwaoha; David W. Smith; Raphael Idem; Paitoon Tontiwachwuthikul. 2018. "Process simulation and parametric sensitivity study of CO2 capture from 115 MW coal–fired power plant using MEA–DEA blend." International Journal of Greenhouse Gas Control 76, no. : 1-11.

Journal article
Published: 10 August 2018 in Applied Energy
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The aim of this work is to find a potential way for great decrease in CO2 capture energy requirement. Here, for the first time, a series of bifunctional Al2O3/HZSM-5 catalysts (Al-ZSM) were prepared by the combined precipitation ultrasound method and used for the CO2 desorption process. All the investigated catalysts were characterized by X-ray diffraction (XRD), Fourier transform infrared spectrometry (FT-IR), N2 adsorption–desorption, ammonia and CO2 temperature programmed desorption (NH3/CO2-TPD) and pyridine-adsorption infrared spectroscopy (Py-IR). The regeneration behaviors of a 5 M monoethanolamine (MEA) solvent with four Al-ZSM catalysts were studied at an initial CO2 loading of 0.5 mol CO2/mol amine and the temperature of 96 °C. The results reveal that all the catalysts improve the CO2 desorption performance, the Al-ZSM catalysts show higher catalytic performance than the single catalysts Al2O3 and HZSM-5, and the Al-ZSM can reduce the heat duty by 23.3–34.2% as compared with the catalyst-free test. The use of Al-ZSM in the MEA regeneration process improves the desorption performance by 2–3 times in comparison with the blank run. A possible dual sites mechanism of CO2 desorption with Al-ZSM is suggested. The excellent performance of Al-ZSM can be attributed to their enhanced Brϕnsted acid sites (BAS), mesopore surface area (MSA) and basic sites, which resulted from the good synergistic reaction between the Al2O3 and HZSM-5, and the base treatment for HZSM-5. Besides, the stability test of the Al-ZSM was conducted. Based on the results, the Al-ZSM demonstrate a superior catalytic performance for the rich amine regeneration process, and present an excellent cyclic stability, explicitly have the potential to be a promising industrial catalyst for CO2 capture. Furthermore, the dual sites catalytic CO2 desorption over bifunctional catalysts will open a new path to design better catalysts for the rich amine solution regeneration process to increase the desorption performance, reduce the regeneration energy consumption, and thus further decreasing the operation costs of CO2 capture.

ACS Style

Xiaowen Zhang; Helei Liu; Zhiwu Liang; Raphael Idem; Paitoon Tontiwachwuthikul; Mohammed J. Al-Marri; Abdelbaki Benamor. Reducing energy consumption of CO2 desorption in CO2-loaded aqueous amine solution using Al2O3/HZSM-5 bifunctional catalysts. Applied Energy 2018, 229, 562 -576.

AMA Style

Xiaowen Zhang, Helei Liu, Zhiwu Liang, Raphael Idem, Paitoon Tontiwachwuthikul, Mohammed J. Al-Marri, Abdelbaki Benamor. Reducing energy consumption of CO2 desorption in CO2-loaded aqueous amine solution using Al2O3/HZSM-5 bifunctional catalysts. Applied Energy. 2018; 229 ():562-576.

Chicago/Turabian Style

Xiaowen Zhang; Helei Liu; Zhiwu Liang; Raphael Idem; Paitoon Tontiwachwuthikul; Mohammed J. Al-Marri; Abdelbaki Benamor. 2018. "Reducing energy consumption of CO2 desorption in CO2-loaded aqueous amine solution using Al2O3/HZSM-5 bifunctional catalysts." Applied Energy 229, no. : 562-576.