Oxygen Removal from Oxy-Combustion Flue Gas for CO2 Purification via Catalytic Methane Oxidation

2018 ◽  
Vol 57 (6) ◽  
pp. 1954-1960 ◽  
Author(s):  
Qinghe Zheng ◽  
Shaojun Zhou ◽  
Marty Lail ◽  
Kelly Amato
Keyword(s):  
Methane Oxidation ◽  
Flue Gas ◽  
Oxygen Removal ◽  
Catalytic Methane Oxidation

Design strategies for oxy-combustion power plant captured CO2 purification

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ikenna J. Okeke ◽  
Tia Ghantous ◽  
Thomas A. Adams
Keyword(s):  
Power Plant ◽  
Flue Gas ◽  
Capture Rate ◽  
Ghg Emissions ◽  
Oxygen Removal ◽  
Water Removal ◽  
Design Strategies ◽  
Technoeconomic Analysis ◽  
Trade Offs ◽  
End Use

Abstract This study presents a novel design and techno-economic analysis of processes for the purification of captured CO2 from the flue gas of an oxy-combustion power plant fueled by petroleum coke. Four candidate process designs were analyzed in terms of GHG emissions, thermal efficiency, pipeline CO2 purity, CO2 capture rate, levelized costs of electricity, and cost of CO2 avoided. The candidates were a classic process with flue-gas water removal via condensation, flue-gas water removal via condensation followed by flue-gas oxygen removal through cryogenic distillation, flue-gas water removal followed by catalytic conversion of oxygen in the flue gas to water via reaction with hydrogen, and oxy-combustion in a slightly oxygen-deprived environment with flue-gas water removal and no need for flue gas oxygen removal. The former two were studied in prior works and the latter two concepts are new to this work. The eco-technoeconomic analysis results indicated trade-offs between the four options in terms of cost, efficiency, lifecycle greenhouse gas emissions, costs of CO2 avoided, technical readiness, and captured CO2 quality. The slightly oxygen-deprived process has the lowest costs of CO2 avoided, but requires tolerance of a small amount of H2, CO, and light hydrocarbons in the captured CO2 which may or may not be feasible depending on the CO2 end use. If infeasible, the catalytic de-oxygenation process is the next best choice. Overall, this work is the first study to perform eco-technoeconomic analyses of different techniques for O2 removal from CO2 captured from an oxy-combustion power plant.

Elucidation and Evolution of the Active Component within Cu/Fe/ZSM-5 for Catalytic Methane Oxidation: From Synthesis to Catalysis

ACS Catalysis ◽  
2013 ◽  
Vol 3 (4) ◽  
pp. 689-699 ◽  
Author(s):  
Ceri Hammond ◽  
Nikolaos Dimitratos ◽  
Robert L. Jenkins ◽  
Jose Antonio Lopez-Sanchez ◽  
Simon A. Kondrat ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Active Component ◽  
Catalytic Methane Oxidation

Study of Catalytic Methane Oxidation Over Pd Supported on Nanocrystalline CeO2: Effects of Calcination and Pd Loading

2001 ◽  
Vol 676 ◽  
Author(s):  
Seung H. Oh ◽  
Michael L. Everett ◽  
Gar B. Hoflund ◽  
Johannes Seydel ◽  
Horst W. Hahn
Keyword(s):  
Catalytic Oxidation ◽  
Methane Oxidation ◽  
Catalyst Activity ◽  
Pd Catalyst ◽  
Oxidation Of Methane ◽  
Heating And Cooling ◽  
Enhanced Activity ◽  
Nanocrystalline Ceria ◽  
Catalytic Methane Oxidation

ABSTRACTThe catalytic oxidation of methane was studied over palladium supported on nanocrystalline ceria. Three palladium weight loadings (1, 5, and 10 wt%) were tested after calcining at 500 °C, at 280 °C and after no calcination at all. For the 5 and 10 wt% loadings, the 280 °C-calcined and non-calcined catalysts exhibit enhanced activity after several heating and cooling cycles. Calcining these same catalysts at 500 °C results in a systematic decline in activity. For all pretreatments the 1 wt% Pd catalyst exhibits decreasing activity. For the 5 and 10 wt% Pd loadings, the non-calcined catalysts are more active than the 280 °C-calcined catalysts, which are more active than the 500 °C-calcined catalysts. For the 1 wt% Pd catalyst, the opposite is true. The catalyst activity improves as the Pd loading is increased.

Size effects of Pd nanoparticles supported over CeZrPAl for methane oxidation

2020 ◽  
Vol 10 (23) ◽  
pp. 7875-7882
Author(s):  
Junchen Du ◽  
Depeng Zhao ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Hong Li ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Size Effects ◽  
Active Sites ◽  
Pd Nanoparticles ◽  
Intrinsic Activity ◽  
Catalytic Methane Oxidation

Pd nanoparticles accompanied with distorted morphology result in considerable active sites and enhance the intrinsic activity for catalytic methane oxidation.

High catalytic methane oxidation activity of monocationic μ-nitrido-bridged iron phthalocyanine dimer with sixteen methyl groups

2021 ◽  
Author(s):  
Yasuyuki Yamada ◽  
Jyunichi Kura ◽  
Yuka Toyoda ◽  
Kentaro Tanaka
Keyword(s):  
Methane Oxidation ◽  
Methyl Groups ◽  
Iron Phthalocyanine ◽  
Oxidation Activity ◽  
Catalytic Methane Oxidation

High catalytic methane oxidation activity of a μ-nitrido-bridged iron phthalocyanine dimer was achieved by introducing 16 electron-donating methyl groups onto the phthalocyanine rings.

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