Producing H<sub>2</sub>‐rich gas from simulated biogas and applying the gas to a 50w PEFC stack

Xu, Guangwen; Chen, Xin; Honda, Kazunori; Zhang, Zhanguo

doi:10.1002/aic.10197

Cited by 22 publications

(10 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4) surely exists in practical CO-PROX reactors. Based on literature reports [15,16], this loss should be at least one to two H 2 moles for one-mole CO removal: actual CO-PROX reactors run generally at O/CO ratios of 2-3 (v/v) [17].…”

Section: Introductionmentioning

confidence: 99%

CO Methanation Over Ru–Al2O3 Catalysts: Effects of Chloride Doping on Reaction Activity and Selectivity

et al. 2011

View full text Add to dashboard Cite

The selective CO methanation (CO-SMET) process via Ru-Al 2 O 3 catalysts was investigated as a tool for complete CO removal in fuel processors, when the H 2 -rich gas so produced is employed for PEM-FCs applications to vehicles, boats, yachts and residential co-generators. CO-SMET seems, in fact, to be a good alternative to the most widely used CO preferential oxidation (CO-PROX) process. The performance of Ru-based catalysts on alumina carrier for efficient CO removal through CO-SMET was studied, exploring the role of two different Ru precursors (chloride and nitrate), and the doping effect of chloride and of Ru load (1%, 3% and 5%). First, two catalytic families (Ru-Al 2 O 3 _Cl and Ru-Al 2 O 3 _NO 3 ) were prepared by incipient wetness impregnation of alumina powder synthesized via solution combustion synthesis, by varying the Ru load. Then, based on the best obtained results, a third catalytic family was prepared adding chloride to Ru-Al 2 O 3 _NO 3 catalysts by impregnation. The CO removal performance was determined at catalyst powder level in a fixed bed micro reactor. Better performances were exhibited when Ru was deposited from chloride precursor, but the post-addition of chlorine to fresh RuAl 2 O 3 catalysts prepared with nitrate precursor tremendously improved their selectivity toward CO methanation. In particular, with both 1% and 3% Ru-Al_NO 3 catalyst chlorine doped, complete CO conversion was reached in a proper temperature range where the CO 2 methanation was suitably kept at a low acceptable level.

show abstract

Section: Introductionmentioning

confidence: 99%

CO Methanation Over Ru–Al2O3 Catalysts: Effects of Chloride Doping on Reaction Activity and Selectivity

et al. 2011

View full text Add to dashboard Cite

show abstract

“…(4), surely exists in practical CO-PROX reactors. This loss, based on literature reports [19,20], should be at least 1-2 mol of H 2 for 1-mol CO removal because actual CO-PROX reactors run generally at O/CO ratios of 2-3 (v/v) [21].…”

Section: Introductionmentioning

confidence: 98%

“…Methanation of CO over various carried metal catalysts such as Co, Ni, Ru, Rh, etc., has been widely investigated from the viewpoint of synthesizing CH 4 from syngas [22][23][24][25][26], and recently also from a viewpoint of residual CO removal for PEM FC applications [20,[27][28][29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

CO selective methanation in H2-rich gas for fuel cell application: Microchannel reactor performance with Ru-based catalysts

Galletti¹,

Specchia²,

Specchia³

2011

Chemical Engineering Journal

View full text Add to dashboard Cite

“…Moreover, it has been reported that dilution by CO 2 has a greater effect than dilution by inert gas [9]. However, experiments have shown that CO 2 has little effect on PEMFC performance compared with CO [6,10], and some conclude that the performance degradation caused by CO 2 is owing to the dilution effect [11].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Impurity Concentration Process and Mitigation Operation in Fuel Cell System for Using Biogas

2021

View full text Add to dashboard Cite

For a low-carbon society, it is necessary to extract hydrogen for fuel cells from biogas rather than from fossil fuels. However, impurities contained in the biogas affect the fuel cell; hence, there is a need for system and operation methods to remove these impurities. In this study, to develop a fuel cell system for the effective utilization of biogas-derived hydrogen, the compositional change and concentration of impurities in the hydrogen recirculation system under actual operation were evaluated using process simulation. Then, the mitigation operation for performance degradation using simple purification methods was evaluated on the proton exchange membrane fuel cells (PEMFC) stack. In the process simulation of the hydrogen recirculation system, including the PEMFC stack, the concentration of impurities remained at a level that did not pose a problem to the performance. In the constant voltage test for a simulated gas supply of biogas-derived hydrogen, the conditions for applying the methanation reforming and air bleeding methods were analyzed. As a result, methanation reforming is more suitable for supplying biogas-containing CO to the PEMFC stack for continuous operation.

show abstract

Producing H₂‐rich gas from simulated biogas and applying the gas to a 50w PEFC stack

Cited by 22 publications

References 25 publications

CO Methanation Over Ru–Al2O3 Catalysts: Effects of Chloride Doping on Reaction Activity and Selectivity

CO Methanation Over Ru–Al2O3 Catalysts: Effects of Chloride Doping on Reaction Activity and Selectivity

CO selective methanation in H2-rich gas for fuel cell application: Microchannel reactor performance with Ru-based catalysts

Evaluation of Impurity Concentration Process and Mitigation Operation in Fuel Cell System for Using Biogas

Contact Info

Product

Resources

About

Producing H2‐rich gas from simulated biogas and applying the gas to a 50w PEFC stack

Cited by 22 publications

References 25 publications

CO Methanation Over Ru–Al2O3 Catalysts: Effects of Chloride Doping on Reaction Activity and Selectivity

CO Methanation Over Ru–Al2O3 Catalysts: Effects of Chloride Doping on Reaction Activity and Selectivity

CO selective methanation in H2-rich gas for fuel cell application: Microchannel reactor performance with Ru-based catalysts

Evaluation of Impurity Concentration Process and Mitigation Operation in Fuel Cell System for Using Biogas

Contact Info

Product

Resources

About

Producing H₂‐rich gas from simulated biogas and applying the gas to a 50w PEFC stack