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Mohd. Danish
Department of Civil Engineering, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia

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Journal article
Published: 11 August 2021 in International Journal of Environmental Research and Public Health
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The rising CO2 concentration has prompted the quest of innovative tools to reduce its effect on the environment. A comparative adsorption study using sustainable low-cost date pits-derived activated carbon and molecular sieve has been carried out for CO2 separation. The adsorb ents were characterized for surface area and morphological properties. The outcomes of flow rate, temperature and initial adsorbate concentration on adsorption performance were examined. The process effectiveness was investigated by breakthrough time, adsorbate loading, efficiency, utilized bed height, mass transfer zone and utilization factor. The immensely steep adsorption response curves demonstrate acceptable utilization of adsorbent capability under breakthrough condition. The adsorbate loading 73.08 mg/g is achieved with an 0.938 column efficiency for developed porous activated carbon at 298 K. The reduced 1.20 cm length of mass transfer zone with enhanced capacity utilization factor equal 0.97 at 298 K with Cin = 5% signifies better adsorption performance for date pits-derived adsorbent. The findings recommend that produced activated carbon is greatly promising to adsorb CO2 in fixed bed column under continuous mode.

ACS Style

Mohd Danish; Vijay Parthasarthy; Mohammed K. Al Mesfer. Comparative Study of CO2 Capture by Adsorption in Sustainable Date Pits-Derived Porous Activated Carbon and Molecular Sieve. International Journal of Environmental Research and Public Health 2021, 18, 8497 .

AMA Style

Mohd Danish, Vijay Parthasarthy, Mohammed K. Al Mesfer. Comparative Study of CO2 Capture by Adsorption in Sustainable Date Pits-Derived Porous Activated Carbon and Molecular Sieve. International Journal of Environmental Research and Public Health. 2021; 18 (16):8497.

Chicago/Turabian Style

Mohd Danish; Vijay Parthasarthy; Mohammed K. Al Mesfer. 2021. "Comparative Study of CO2 Capture by Adsorption in Sustainable Date Pits-Derived Porous Activated Carbon and Molecular Sieve." International Journal of Environmental Research and Public Health 18, no. 16: 8497.

Journal article
Published: 12 July 2021 in Materials
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The rising levels of CO2 in the atmosphere are causing escalating average global temperatures. The capture of CO2 by adsorption has been carried out using silica gel type III and prepared activated carbon. The date pits-based activated carbon was synthesized using a tubular furnace by physical activation. The temperature of the sample was increased at 10 °C/min and the biomass was carbonized under N2 flow maintained continuously for 2 h at 600 °C. The activation was performed with the CO2 flow maintained constantly for 2 h at 600 °C. The temperature, feed flow and adsorbate volume were the parameters considered for CO2 adsorption. The success of CO2 capture was analyzed by CO2 uptake, efficiency based on column capacity, utilization factors and the mass transfer zone. The massively steep profiles of the breakthrough response of the AC demonstrate the satisfactory exploitation of CO2 uptake under the conditions of the breakthrough. The SG contributed to a maximal CO2 uptake of 8.61 mg/g at 298 K and Co = 5% with F = 5 lpm. The enhanced CO2 uptake of 73.1 mg/g was achieved with a column efficiency of 0.94 for the activated carbon produced from date pits at 298 K. The AC demonstrated an improved performance with a decreased mass transfer zone of 1.20 cm with an enhanced utilization factor f = 0.97 at 298 K. This finding suggests that a date pits-based activated carbon is suitable for CO2 separation by adsorption from the feed mixture.

ACS Style

Mohd Danish; Vijay Parthasarthy; Mohammed Al Mesfer. CO2 Capture by Low-Cost Date Pits-Based Activated Carbon and Silica Gel. Materials 2021, 14, 3885 .

AMA Style

Mohd Danish, Vijay Parthasarthy, Mohammed Al Mesfer. CO2 Capture by Low-Cost Date Pits-Based Activated Carbon and Silica Gel. Materials. 2021; 14 (14):3885.

Chicago/Turabian Style

Mohd Danish; Vijay Parthasarthy; Mohammed Al Mesfer. 2021. "CO2 Capture by Low-Cost Date Pits-Based Activated Carbon and Silica Gel." Materials 14, no. 14: 3885.

Journal article
Published: 28 June 2021 in Energies
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In the current work, the heat flux in nucleate pool boiling has been predicted using the macrolayer and latent heat evaporation model. The wall superheat (ΔT) and macrolayer thickness (δ) are the parameters considered for predicting the heat flux. The influence of operating parameters on instantaneous conduction heat flux and average heat flux across the macrolayer are investigated. A comparison of the findings of current model with Bhat’s decreasing macrolayer model revealed a close agreement under the nucleate pool boiling condition at high heat flux. It is suggested that conduction heat transfer strongly rely on macrolayer thickness and wall superheat. The wall superheat and macrolayer thickness is found to significantly contribute to conduction heat transfer. The predicted results closely agree with the findings of Bhat’s decreasing macrolayer model for higher values of wall superheat signifying the nucleate boiling. The predicted results of the proposed model and Bhat’s existing model are validated by the experimental data. The findings also endorse the claim that predominant mode of heat transfer from heater surface to boiling liquid is the conduction across the macrolayer at the significantly high heat flux region of nucleate boiling.

ACS Style

Mohd Danish; Mohammed Al Mesfer; Khursheed Ansari; Mudassir Hasan; Abdelfattah Amari; Babar Azeem. Predicting Conduction Heat Flux through Macrolayer in Nucleate Pool Boiling. Energies 2021, 14, 3893 .

AMA Style

Mohd Danish, Mohammed Al Mesfer, Khursheed Ansari, Mudassir Hasan, Abdelfattah Amari, Babar Azeem. Predicting Conduction Heat Flux through Macrolayer in Nucleate Pool Boiling. Energies. 2021; 14 (13):3893.

Chicago/Turabian Style

Mohd Danish; Mohammed Al Mesfer; Khursheed Ansari; Mudassir Hasan; Abdelfattah Amari; Babar Azeem. 2021. "Predicting Conduction Heat Flux through Macrolayer in Nucleate Pool Boiling." Energies 14, no. 13: 3893.

Journal article
Published: 15 June 2021 in Sustainability
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The environmental and economic concerns pertaining to the construction industry have necessitated the development of sustainable concrete. Durability and strength are the two primary properties which determine the sustainability of concrete. This study evaluated the performance of self-cured concrete produced from local vesicular basalt porous aggregates. The durability indicators, porosity, permeability and pore size of the hardened concrete, were obtained from the water sorptivity (water permeability under capillary action) test, the water permeability under pressure action test and the Brunauer–Emmett–Teller (BET) surface area test and strength was evaluated in terms of compressive strength of concrete. The concrete specimens were produced with 10% porous vesicular basalt aggregate in replacement of coarse aggregate. The concrete specimens were tested at 3, 7 and 28 days. The self-curing effect on concrete strength was evaluated against water, air and membrane cured specimens, at surface/volume ratio of 26.4/40 and w/c ratio of 0.35/0.5. A 20% decrease in sorptivity coefficient, 10% increase in solid surface area and about 10% increase in compressive strength of the self-cured concrete was observed over the conventionally cured concrete. The study concludes that the addition of water-entrainment aggregates to concrete reduces water permeability, results in a finer pore structure of concrete and increases the quality and durability of concrete.

ACS Style

Mohd. Ahmed; Saeed AlQadhi; Saleh Alsulamy; Saiful Islam; Roohul Khan; Mohd. Danish. Development of Self-Cured Sustainable Concrete Using Local Water-Entrainment Aggregates of Vesicular Basalt. Sustainability 2021, 13, 6756 .

AMA Style

Mohd. Ahmed, Saeed AlQadhi, Saleh Alsulamy, Saiful Islam, Roohul Khan, Mohd. Danish. Development of Self-Cured Sustainable Concrete Using Local Water-Entrainment Aggregates of Vesicular Basalt. Sustainability. 2021; 13 (12):6756.

Chicago/Turabian Style

Mohd. Ahmed; Saeed AlQadhi; Saleh Alsulamy; Saiful Islam; Roohul Khan; Mohd. Danish. 2021. "Development of Self-Cured Sustainable Concrete Using Local Water-Entrainment Aggregates of Vesicular Basalt." Sustainability 13, no. 12: 6756.

Original article
Published: 21 April 2021 in Carbon Letters
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Global warming and climate changes are the ultimate consequences of increased CO2 volume in the air. Physical activation was used to prepare high-throughput activated carbon from a low-cost date stone. The adsorption performance of activated carbon using fixed bed for CO2 separation was studied. The reliance of temperature, flow rate, and initial CO2 concentration levels on breakthrough behaviour was analysed. The adsorption response was explored in terms of breakthrough and saturation points, adsorption capacity, temperature profiles, utilization factor, and length of mass-transfer zone. Increased temperatures lead to vary the breakthrough periods notably. The vastly steep breakthrough curves reveal satisfactory utilization of bed capacity. LMTZ is varied positively with increased feed rates and temperatures. The high utilization factor of 0.9738 with 1.66 mmol/g CO2 uptake was acquired at 298 K and 0.25 bars. The findings recommend that the carbon prepared from date stone is encouraging to capture CO2 from CO2/N2 mixture.

ACS Style

Mohd Danish; Vijay Parthasarthy; Mohammed K. Al Mesfer. CO2 capture using activated carbon synthesized from date stone: breakthrough, equilibrium, and mass-transfer zone. Carbon Letters 2021, 1 -12.

AMA Style

Mohd Danish, Vijay Parthasarthy, Mohammed K. Al Mesfer. CO2 capture using activated carbon synthesized from date stone: breakthrough, equilibrium, and mass-transfer zone. Carbon Letters. 2021; ():1-12.

Chicago/Turabian Style

Mohd Danish; Vijay Parthasarthy; Mohammed K. Al Mesfer. 2021. "CO2 capture using activated carbon synthesized from date stone: breakthrough, equilibrium, and mass-transfer zone." Carbon Letters , no. : 1-12.

Preprint content
Published: 30 March 2021
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The increased levels of carbon dioxide in the environment have incited the search of breakthrough technologies to lessen their impact on climate. The fixed bed CO2 adsorption study has been carried out using two-grades of adsorbents from CO2/N2 feed. The molecular sieve 3Å and porous carbon prepared from low-cost date stone were used for the adsorption study. BET analyser and a scanning electron microscope were used to analyze the surface and morphological characteristics of activated carbons. The result of temperature, flow rate, initial carbon dioxide concentration levels in feed on breakthrough behaviour was analysed. The adsorption response was explored in terms of breakthrough and saturation points, CO2 uptake, temperature profiles, effective column efficiency, usable bed height, utilization factor and length of mass transfer zone. The vastly steep breakthrough curves produced under different operating conditions reveals satisfactory utilisation of adsorbent capacity at breakthrough condition. The CO2 uptake of 73.08 mg/g was attained having high effective column capacity of 0.938 at 298 K for synthesized activated carbon. The activated carbon AC-SY performs better with lessen LMTZ of 1.20 cm and improved utilization factor of 0.97 at Co=5 % and 298 K. The findings of study suggest that activated carbon developed from date stone is highly encouraging to capture CO2 from CO2/N2 mixture using continuous fixed bed column

ACS Style

Mohd Danish; Vijay Parthasarthy; Mohammed K. Al Mesfer. Breakthrough adsorption study using activated carbon and molecular sieve for CO2 capture. 2021, 1 .

AMA Style

Mohd Danish, Vijay Parthasarthy, Mohammed K. Al Mesfer. Breakthrough adsorption study using activated carbon and molecular sieve for CO2 capture. . 2021; ():1.

Chicago/Turabian Style

Mohd Danish; Vijay Parthasarthy; Mohammed K. Al Mesfer. 2021. "Breakthrough adsorption study using activated carbon and molecular sieve for CO2 capture." , no. : 1.

Journal article
Published: 01 October 2020 in Processes
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The increased levels of carbon dioxide in the environment have incited the search for breakthrough technologies to lessen its impact on climate. The CO2 capture from a mixture of CO2/N2 was studied using a molecular sieve (MS) and silica gel type-III. The breakthrough behavior was predicted as a function of temperature, superficial velocity, and CO2 partial pressure. The breakpoint time reduced significantly with increased temperature and increased superficial velocity. The CO2 adsorption capacity increased appreciably with decreased temperature and increased CO2 pressure. The saturation CO2 adsorption capacity from the CO2/N2 mixture reduced appreciably with increased temperature. The molecular sieve contributed to higher adsorption capacity, and the highest CO2 uptake of 0.665 mmol/g was realized for MS. The smaller width of the mass transfer zone and higher column efficiency of 87.5% for MS signify the efficient use of the adsorbent; this lowers the regeneration cost. The findings suggest that a molecular sieve is suitable for CO2 capture due to high adsorption performance owing to better adsorption characteristic parameters.

ACS Style

Mohammed K. Al Mesfer; Mohd Danish; Mohammed Ilyas Khan; Ismat Hassan Ali; Mudassir Hasan; Atef El Jery. Continuous Fixed Bed CO2 Adsorption: Breakthrough, Column Efficiency, Mass Transfer Zone. Processes 2020, 8, 1233 .

AMA Style

Mohammed K. Al Mesfer, Mohd Danish, Mohammed Ilyas Khan, Ismat Hassan Ali, Mudassir Hasan, Atef El Jery. Continuous Fixed Bed CO2 Adsorption: Breakthrough, Column Efficiency, Mass Transfer Zone. Processes. 2020; 8 (10):1233.

Chicago/Turabian Style

Mohammed K. Al Mesfer; Mohd Danish; Mohammed Ilyas Khan; Ismat Hassan Ali; Mudassir Hasan; Atef El Jery. 2020. "Continuous Fixed Bed CO2 Adsorption: Breakthrough, Column Efficiency, Mass Transfer Zone." Processes 8, no. 10: 1233.

Original
Published: 01 August 2020 in Heat and Mass Transfer
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In this study, two types of adsorbents, Molecular sieve 3 Å and Silica gel 8–20 mesh were used for CO2 separation from CO2/N2 mixture in a fixed bed column. The impact of the temperature, superficial velocity and CO2 partial pressure on the breakthrough behavior, adsorption capacity and mass transfer zone has been thoroughly investigated. The breakpoint time declined with increased temperature, and maximal breakthrough period of 870 s was attained at a temperature of 30 °C using molecular sieve 3 Å, which is significantly higher than that obtained for Silica gel 8–20 mesh. Furthermore, the width of the mass transfer zone (MTZ) increases with reduced bed temperatures, which signifies the extent of utilization of bed capacity at the breakpoint. The breakpoint time increases with reduced superficial velocity, and the prolonged breakthrough time was achieved at a minimal superficial velocity of 0.026 m/s for MS 3 Å. The adsorption capacity reduced considerably with elevated temperature, and the maximal adsorption capacity of 903.8 mmol CO2/Kg adsorbent was determined at a temperature of 30 °C for MS 3 Å. The capacity increases considerably with increased feed superficial velocity, and the capacities of 792 mmol CO2/Kg and 152.9 mmol/Kg adsorbent were achieved for MS 3 Å and SG 8–20 mesh, respectively, at a constant superficial velocity of 0.042 m/s. The capacity increases considerably with increased partial pressure of the CO2, and an adsorption capacity of 894.7 mmol CO2/Kg adsorbent was acquired with an equilibrium partial pressure of 0.4 bars utilizing MS 3 Å. An adsorption capacity of 167.84 mmol/Kg adsorbent was evaluated at a partial pressure of 0.40 bars by controlling the temperature at 30 °C for SG 8–20 mesh. Owing to its remarkably higher capacity, the MS 3 Å adsorbent can be economically utilized for separation of CO2 from CO2/N2 mixture.

ACS Style

Mohammed K. Al Mesfer; Mohd Danish; Ismat Hassan Ali; Mohammed Ilyas Khan. Adsorption behavior of molecular sieve 3 Å and silica gel for CO2 separation: equilibrium, breakthrough and mass transfer zone. Heat and Mass Transfer 2020, 56, 3243 -3259.

AMA Style

Mohammed K. Al Mesfer, Mohd Danish, Ismat Hassan Ali, Mohammed Ilyas Khan. Adsorption behavior of molecular sieve 3 Å and silica gel for CO2 separation: equilibrium, breakthrough and mass transfer zone. Heat and Mass Transfer. 2020; 56 (12):3243-3259.

Chicago/Turabian Style

Mohammed K. Al Mesfer; Mohd Danish; Ismat Hassan Ali; Mohammed Ilyas Khan. 2020. "Adsorption behavior of molecular sieve 3 Å and silica gel for CO2 separation: equilibrium, breakthrough and mass transfer zone." Heat and Mass Transfer 56, no. 12: 3243-3259.

Articles
Published: 16 June 2020 in Chemical Engineering Communications
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An experimental and simulation study using a packed column for CO2 sorption was conducted. The adsorption data of CO2 sorption from CO2/N2 mixture using activated carbon (NORIT RB1) were obtained at different operating conditions. The sorption equilibrium and breakthrough profiles were produced with a total pressure of 1.25 bars. The breakthrough and saturation time decreased with increasing temperature, feed rate, and inlet CO2 concentration. A linear driving force (LDF) model for mass transfer was used to calculate the mass transfer coefficient and reproduce the breakthrough curves. The findings of the LDF model were compared with experimental data produced at various operating conditions to predict the breakthrough curves. The experimental and predicted findings were analyzed by ascertaining the determination coefficient and mean error. The model consistently reproduced all the breakthrough curves and may be considered adequate for predicting the CO2 separation from a CO2/N2 mixture with R2 > 0.97 and mean error less than 5% under all the operating conditions.

ACS Style

Mohammed K. Al Mesfer; Abdelfattah Amari; Mohd Danish; Basem Abdullah Al Alwan; Mumtaj Shah. Simulation study of fixed-bed CO2 adsorption from CO2/N2 mixture using activated carbon. Chemical Engineering Communications 2020, 208, 1358 -1367.

AMA Style

Mohammed K. Al Mesfer, Abdelfattah Amari, Mohd Danish, Basem Abdullah Al Alwan, Mumtaj Shah. Simulation study of fixed-bed CO2 adsorption from CO2/N2 mixture using activated carbon. Chemical Engineering Communications. 2020; 208 (9):1358-1367.

Chicago/Turabian Style

Mohammed K. Al Mesfer; Abdelfattah Amari; Mohd Danish; Basem Abdullah Al Alwan; Mumtaj Shah. 2020. "Simulation study of fixed-bed CO2 adsorption from CO2/N2 mixture using activated carbon." Chemical Engineering Communications 208, no. 9: 1358-1367.

Journal article
Published: 11 October 2019 in Processes
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A mathematical model has been developed for heat exchange in nucleate boiling at high flux applying an energy balance on a macrolayer. The wall superheat, macrolayer thickness, and time are the parameters considered for predicting the heat flux. The influence of the wall superheat and macrolayer thickness on average heat flux has been predicted. The outcomes of the current model have been compared with Bhat’s constant macrolayer model, and it was found that these models are in close agreement corresponding to the nucleate pool boiling regime. It was concluded that the wall superheat and macrolayer thickness contributed significantly to conduction heat transfer. The average conduction heat fluxes predicted by the current model and by Bhat’s model are in close agreement for a thinner macrolayer of approximately 50 µm. For higher values of the wall superheat, which corresponds to the nucleate pool boiling condition, the predicted results strongly agree with the results of Bhat’s model. The findings also validate the claim that conduction across the macrolayer accounts for the main heat transfer mode from the heater surface to boiling liquid at high heat flux in nucleate pool boiling.

ACS Style

Mohd Danish; Mohammed K. Al Mesfer; Al Mesfer. Developing a Mathematical Model for Nucleate Boiling Regime at High Heat Flux. Processes 2019, 7, 726 .

AMA Style

Mohd Danish, Mohammed K. Al Mesfer, Al Mesfer. Developing a Mathematical Model for Nucleate Boiling Regime at High Heat Flux. Processes. 2019; 7 (10):726.

Chicago/Turabian Style

Mohd Danish; Mohammed K. Al Mesfer; Al Mesfer. 2019. "Developing a Mathematical Model for Nucleate Boiling Regime at High Heat Flux." Processes 7, no. 10: 726.

Journal article
Published: 16 April 2019 in Processes
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The adsorption potential of acid activated carbon prepared from leaves of Juniperus procera to remove Pb(II) and Cr(VI) toxic ions from aqueous solutions was investigated. The effects of solution pH, adsorbent mass, contact time, initial ion concentration and temperature on the biosorption process were studied, and the optimum conditions were determined. Moreover, Langmuir, Freundlich, Temkin and Dubinin–Radushkevich adsorption isotherm models were applied to analyze adsorption data. Thermodynamic parameters for the adsorption processes were calculated. Adsorption was found to be a spontaneous and endothermic process. In addition, kinetic studies revealed a pseudo-first order kinetics biosorption process. The obtained results suggest that acid activated Juniperus procera leaves powder can be used as a cheap, efficient and environmentally friendly adsorbent material with high removal efficiency up to 98% for Pb(II) and 96% for Cr(VI) at 0.80 and 1.00 g/100 mL, respectively. The duration of the process was 100 min and 120 min for Pb(II) and Cr(VI) ions, respectively. The morphology of the of prepared activated carbon was investigated by scanning electron microscope (SEM).

ACS Style

Ismat H. Ali; Mohammed K. Al Mesfer; Mohammad I. Khan; Mohd Danish; Majed M. Alghamdi. Exploring Adsorption Process of Lead (II) and Chromium (VI) Ions from Aqueous Solutions on Acid Activated Carbon Prepared from Juniperus procera Leaves. Processes 2019, 7, 217 .

AMA Style

Ismat H. Ali, Mohammed K. Al Mesfer, Mohammad I. Khan, Mohd Danish, Majed M. Alghamdi. Exploring Adsorption Process of Lead (II) and Chromium (VI) Ions from Aqueous Solutions on Acid Activated Carbon Prepared from Juniperus procera Leaves. Processes. 2019; 7 (4):217.

Chicago/Turabian Style

Ismat H. Ali; Mohammed K. Al Mesfer; Mohammad I. Khan; Mohd Danish; Majed M. Alghamdi. 2019. "Exploring Adsorption Process of Lead (II) and Chromium (VI) Ions from Aqueous Solutions on Acid Activated Carbon Prepared from Juniperus procera Leaves." Processes 7, no. 4: 217.

Journal article
Published: 01 August 2018 in Journal of Environmental Chemical Engineering
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Granular activated carbons (GACs) were used to separate carbon dioxide (CO2) from N2-CO2 feed gas mixture employing a fixed bed column. Two grades of GAC (GAC-1 and GAC-2) were used as an adsorbents. The adsorbents were characterized using Micromeritics ASAP surface analyzer and a scanning electron microscope. The parameters considered for examining the breakthrough responses of GACs were the initial concentration of CO2 in feed, temperature, and feed flow rate. It was observed that breakpoint time decreases with increased column temperature and with the gas feed rate for GAC-1 and GAC-2. For both types of activated carbons, the breakthrough time (tb) slightly decreases with increased initial CO2 concentration (vol. %) from 1% to 2% in feed. It was suggested that longer breakthrough time contributes to a higher adsorption capacity of an adsorbents. The adsorption breakthrough occurs early for GAC-2 compared with GAC-1 when the bed was subjected to the same temperature of 25 °C because of the superior surface characteristics of GAC-1. A longer breakthrough time of 1640sec for GAC-1 was observed compared with a slower breakthrough time of 760 sec for GAC-2 at a constant bed temperature of 25 °C subjected to a feed rate of 3 L/min (Cfeed = 5%). It was concluded that GAC-1 breakthrough was delayed compared with that of GAC-2 when the column was controlled to the same initial concentration of CO2 in the feed. The breakthrough periods of 960 sec and 270 sec were observed at an initial CO2 concentration of 2% in feed for GAC-1 and GAC-2, respectively. The maximum CO2 adsorption capacity of 25.39 g/kg adsorbent was estimated at a CO2 partial pressure of 0.048 bars for GAC-1.

ACS Style

Mohammed K. Al Mesfer; Mohd Danish. Breakthrough adsorption study of activated carbons for CO2 separation from flue gas. Journal of Environmental Chemical Engineering 2018, 6, 4514 -4524.

AMA Style

Mohammed K. Al Mesfer, Mohd Danish. Breakthrough adsorption study of activated carbons for CO2 separation from flue gas. Journal of Environmental Chemical Engineering. 2018; 6 (4):4514-4524.

Chicago/Turabian Style

Mohammed K. Al Mesfer; Mohd Danish. 2018. "Breakthrough adsorption study of activated carbons for CO2 separation from flue gas." Journal of Environmental Chemical Engineering 6, no. 4: 4514-4524.

Original
Published: 01 March 2018 in Heat and Mass Transfer
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In the current work, the capturing of carbon dioxide from flue gases of post combustion emission using fixed bed adsorption has been carried out. Two grades of commercial activated carbon (sorbent-1 and sorbent-2) were used as adsorbent. Feed consisting of CO2 and N2 mixture was used for carrying out the adsorption. The influence of bed temperature, feed rate, equilibrium partial pressure and initial % CO2 in feed were considered for analyzing adsorption-desorption process. It was found that the total adsorption-desorption cycle time decreases with increased column temperature and feed rates. The time required to achieve the condition of bed saturation decreases with increased bed temperature and feed rates. The amount of CO2 adsorbed/Kg of the adsorbent declines with increased bed temperature with in studied range for sorbent-1 and sorbent-2. It was suggested that the adsorption capacity of the both the sorbents increases with increased partial pressure of the gas.

ACS Style

Mohammed K. Al Mesfer; Mohd Danish; Yasser M. Fahmy; Mamoon Rashid. Post-combustion CO2 capture with activated carbons using fixed bed adsorption. Heat and Mass Transfer 2018, 54, 2715 -2724.

AMA Style

Mohammed K. Al Mesfer, Mohd Danish, Yasser M. Fahmy, Mamoon Rashid. Post-combustion CO2 capture with activated carbons using fixed bed adsorption. Heat and Mass Transfer. 2018; 54 (9):2715-2724.

Chicago/Turabian Style

Mohammed K. Al Mesfer; Mohd Danish; Yasser M. Fahmy; Mamoon Rashid. 2018. "Post-combustion CO2 capture with activated carbons using fixed bed adsorption." Heat and Mass Transfer 54, no. 9: 2715-2724.

Original
Published: 08 August 2017 in Heat and Mass Transfer
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In the present work, a transient heat conduction model has been developed for heat transfer through macrolayer in nucleate regime of pool boiling. The developed heat transfer model was solved analytically (Laplace Transform) using appropriate initial and boundary conditions. The influence of macrolayer thickness, wall superheat, and time on conduction heat flux has been predicted. The average conduction heat flux as a function of wall superheat and macrolayer thickness has also been predicted. The findings of the study have been compared with experimental results, and they are in reasonable agreement. For higher values of wall superheat, which correspond to nucleate pool boiling, predicted results agree with experimental data. Findings also substantiate the assertion that heat conduction across the macrolayer constitutes the major mode of heat transfer from the heated wall to the boiling liquid in the macrolayer regime of pool boiling.

ACS Style

Mohd Danish; Mohammed K. Al Mesfer. Analytical solution of nucleate pool boiling heat transfer model based on macrolayer. Heat and Mass Transfer 2017, 54, 313 -324.

AMA Style

Mohd Danish, Mohammed K. Al Mesfer. Analytical solution of nucleate pool boiling heat transfer model based on macrolayer. Heat and Mass Transfer. 2017; 54 (2):313-324.

Chicago/Turabian Style

Mohd Danish; Mohammed K. Al Mesfer. 2017. "Analytical solution of nucleate pool boiling heat transfer model based on macrolayer." Heat and Mass Transfer 54, no. 2: 313-324.