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Mr. Osaze Omoregbe
University of Birmingham, Birmingham, UK

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0 Climate Change Mitigation
0 Heterogeneous Catalysis
0 Hydrogen Energy
0 energy policies
0 Carbon utilization and storage

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Journal article
Published: 24 June 2019 in Processes
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This paper presents steady-state simulation and exergy analysis of the 2-amino-2-methyl-1-propanol (AMP)-based post-combustion capture (PCC) plant. Exergy analysis provides the identification of the location, sources of thermodynamic inefficiencies, and magnitude in a thermal system. Furthermore, thermodynamic analysis of different configurations of the process helps to identify opportunities for reducing the steam requirements for each of the configurations. Exergy analysis performed for the AMP-based plant and the different configurations revealed that the rich split with intercooling configuration gave the highest exergy efficiency of 73.6%, while that of the intercooling and the reference AMP-based plant were 57.3% and 55.8% respectively. Thus, exergy analysis of flowsheeting configurations can lead to significant improvements in plant performance and lead to cost reduction for amine-based CO2 capture technologies.

ACS Style

Ebuwa Osagie; Aliyu M. Aliyu; Somtochukwu Godfrey Nnabuife; Osaze Omoregbe; Victor Etim; Aliyu Aliyu. Exergy Analysis and Evaluation of the Different Flowsheeting Configurations for CO2 Capture Plant Using 2-Amino-2-Methyl-1-Propanol (AMP). Processes 2019, 7, 391 .

AMA Style

Ebuwa Osagie, Aliyu M. Aliyu, Somtochukwu Godfrey Nnabuife, Osaze Omoregbe, Victor Etim, Aliyu Aliyu. Exergy Analysis and Evaluation of the Different Flowsheeting Configurations for CO2 Capture Plant Using 2-Amino-2-Methyl-1-Propanol (AMP). Processes. 2019; 7 (6):391.

Chicago/Turabian Style

Ebuwa Osagie; Aliyu M. Aliyu; Somtochukwu Godfrey Nnabuife; Osaze Omoregbe; Victor Etim; Aliyu Aliyu. 2019. "Exergy Analysis and Evaluation of the Different Flowsheeting Configurations for CO2 Capture Plant Using 2-Amino-2-Methyl-1-Propanol (AMP)." Processes 7, no. 6: 391.

Journal article
Published: 01 October 2018 in Journal of the Energy Institute
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ACS Style

Tan Ji Siang; Sharanjit Singh; Osaze Omoregbe; Long Giang Bach; Nguyen Huu Huy Phuc; Dai-Viet N. Vo. Hydrogen production from CH4 dry reforming over bimetallic Ni–Co/Al2O3 catalyst. Journal of the Energy Institute 2018, 91, 683 -694.

AMA Style

Tan Ji Siang, Sharanjit Singh, Osaze Omoregbe, Long Giang Bach, Nguyen Huu Huy Phuc, Dai-Viet N. Vo. Hydrogen production from CH4 dry reforming over bimetallic Ni–Co/Al2O3 catalyst. Journal of the Energy Institute. 2018; 91 (5):683-694.

Chicago/Turabian Style

Tan Ji Siang; Sharanjit Singh; Osaze Omoregbe; Long Giang Bach; Nguyen Huu Huy Phuc; Dai-Viet N. Vo. 2018. "Hydrogen production from CH4 dry reforming over bimetallic Ni–Co/Al2O3 catalyst." Journal of the Energy Institute 91, no. 5: 683-694.

Journal article
Published: 01 April 2017 in International Journal of Hydrogen Energy
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The influence of operating conditions including reactant partial pressure and reaction temperature on the catalytic performance of 10%Ni/SBA-15 catalyst for methane dry reforming (MDR) reaction has been investigated in this study. MDR reaction was carried out under atmospheric pressure at varying CH4/CO2 volume ratios of 3:1 to 1:3 and 923-1023 K in a tubular fixed-bed reactor. SBA-15 supported Ni catalyst exhibited high specific surface area of 444.96 m2 g-1 and NiO phase with average crystallite size of 27 nm was detected on catalyst surface by X-ray diffraction and Raman measurements. H2 temperature-programmed reaction shows that NiO particles were reduced to metallic Ni0 phase with degree of reduction of about 90.1% and the reduction temperature depended on the extent of metal-support interaction and confinement effect of mesoporous silica support. Catalytic activity appeared to be stable for 4 h on-stream at 973-1023 K whilst a slight drop in activity was observed at 923 K probably due to deposited carbon formed by thermodynamically favored CH4 decomposition reaction. Both CH4 and CO2 conversions increased with rising reaction temperature and reaching about 91% and 94%, respectively at 1023 K with CO2 and CH4 partial pressure of 20 kPa. CH4 conversion improved with increasing CO2 partial pressure, PCO2 and exhibited an optimum at PCO2 of 30-50 kPa depending on reaction temperature whilst a substantial decline in CO2 conversion was observed with growing PCO2. Additionally, CH4 and CO2 conversions decreased significantly with rising CH4 partial pressure because of increasing carbon formation rate via CH4 cracking in CH4-rich feed. Post-reaction characterization shows that active Ni metal phase was not re-oxidized to inactive metal oxide during MDR reaction. The heterogeneous nature of deposited carbons including carbon nanofilament and graphite was detected on catalyst surface by Raman measurement

ACS Style

Osaze Omoregbe; Huong T. Danh; Chinh Nguyen-Huy; Herma Dina Setiabudi; S.Z. Abidin; Quang Duc Truong; Dai-Viet N. Vo. Syngas production from methane dry reforming over Ni/SBA-15 catalyst: Effect of operating parameters. International Journal of Hydrogen Energy 2017, 42, 11283 -11294.

AMA Style

Osaze Omoregbe, Huong T. Danh, Chinh Nguyen-Huy, Herma Dina Setiabudi, S.Z. Abidin, Quang Duc Truong, Dai-Viet N. Vo. Syngas production from methane dry reforming over Ni/SBA-15 catalyst: Effect of operating parameters. International Journal of Hydrogen Energy. 2017; 42 (16):11283-11294.

Chicago/Turabian Style

Osaze Omoregbe; Huong T. Danh; Chinh Nguyen-Huy; Herma Dina Setiabudi; S.Z. Abidin; Quang Duc Truong; Dai-Viet N. Vo. 2017. "Syngas production from methane dry reforming over Ni/SBA-15 catalyst: Effect of operating parameters." International Journal of Hydrogen Energy 42, no. 16: 11283-11294.

Journal article
Published: 01 January 2016 in Procedia Engineering
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The catalytic performance of Ce- and La-promoted Ni/SBA-15 catalysts for syngas production from CO2 reforming of methane has been investigated in a fixed-bed reactor at stoichiometric feed composition. Both promoted and unpromoted catalysts possessed high BET surface area of 303-445 m2 g-1. Additionally, SBA-15 support had a relatively uniform rod-like shape with a diameter of about 0.55 μm and a reduction in the crystallite size of NiO phase from 27.0 to 19.1 nm was observed with promoter addition reasonably due to the strong interaction between promoter and NiO particles. CeO2 and La2O3 dopants were finely dispersed on catalyst surface. Temperature-programmed oxidation of spent catalysts showed that coke-resistance was improved significantly with promoter modification and 3%La-10%Ni/SBA-15 catalyst was the most resistant to carbonaceous deposition rationally due to the least NiO crystallite size hindering the nucleation and growth of graphitic carbon. Hence, La-promoted catalyst appeared to be the optimum catalyst in terms of reactant conversion, H2 yield and stability whilst a gradual decline in both reactant conversion and H2 yield was experienced with unpromoted and Ce-doped catalysts. Regardless of catalyst types, the ratio of H2 to CO was always less than unity preferred for Fischer-Tropsch synthesis.

ACS Style

Osaze Omoregbe; Huong T. Danh; S.Z. Abidin; Herma Dina Setiabudi; Bawadi Abdullah; Khanh B. Vu; Dai-Viet N. Vo. Influence of Lanthanide Promoters on Ni/SBA-15 Catalysts for Syngas Production by Methane Dry Reforming. Procedia Engineering 2016, 148, 1388 -1395.

AMA Style

Osaze Omoregbe, Huong T. Danh, S.Z. Abidin, Herma Dina Setiabudi, Bawadi Abdullah, Khanh B. Vu, Dai-Viet N. Vo. Influence of Lanthanide Promoters on Ni/SBA-15 Catalysts for Syngas Production by Methane Dry Reforming. Procedia Engineering. 2016; 148 ():1388-1395.

Chicago/Turabian Style

Osaze Omoregbe; Huong T. Danh; S.Z. Abidin; Herma Dina Setiabudi; Bawadi Abdullah; Khanh B. Vu; Dai-Viet N. Vo. 2016. "Influence of Lanthanide Promoters on Ni/SBA-15 Catalysts for Syngas Production by Methane Dry Reforming." Procedia Engineering 148, no. : 1388-1395.