Numerical study on biogas refining system combined with proton-conducting solid oxide electrolyzer

Y. Tachikawa, Y. Matsuzaki, Y. Kawabata, S. Taniguchi, K. Sasaki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Biogas refining system including methanation reactor and protonconducting electrolysis cell has been proposed and investigated based on the simulation including mass and heat balance analysis. Based on the calculation results, carbon deposition was predicted to still occur at the cathode outlet even with the gas humidification when a conventional oxide-ion conducting electrolyte is applied to the electrolysis cell due to the enhanced carbon activity caused by oxide-ion transport from the cathode to the anode. In the case of the proton-conducting electrolyte applied solid oxide electrolysis cell, proton transport from the anode to the cathode was found to mainly promote reverse water-gas shift reaction and methanation reaction without any carbon deposition. Even though the calculation results should be verified by comparing with experimental results, the numerical study suggested that the biogas refining system combined with p-SOEC is a promising technology for generating carbonneutral methane with a strongly suppressed risk of carbon deposition.

本文言語英語
ホスト出版物のタイトル17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
出版社IOP Publishing Ltd.
ページ845-851
ページ数7
1
ISBN(電子版)9781607685395
DOI
出版ステータス出版済み - 2021
イベント17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 - Stockholm, スウェーデン
継続期間: 7 18 20217 23 2021

出版物シリーズ

名前ECS Transactions
番号1
103
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

会議

会議17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
国/地域スウェーデン
CityStockholm
Period7/18/217/23/21

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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