SOEC共電解を併用した炭化水素製造システムの構成と構成要素が効率に及ぼす影響

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2024/07/01

タイトル(英語): Effect of Configuration and Components of Hydrocarbon Production System with SOEC Co-Electrolysis on Efficiency

著者名: 小玉　智也（日本大学理工学部電気工学科），辻　健太郎（日本大学理工学部電気工学科），吉川　将洋（日本大学理工学部電気工学科）

著者名(英語): Tomoya Kodama (Department of Electrical Engineering, Graduate School of Science and Technology, Nihon Universiy), Kentaro Tsuji (Department of Electrical Engineering, Graduate School of Science and Technology, Nihon Universiy), Masahiro Yoshikawa (Department of Electrical Engineering, Graduate School of Science and Technology, Nihon Universiy)

キーワード: 固体酸化物形電解槽（SOEC），Power to Gas，共電解，炭化水素製造システム　　solid oxide electrolysis cell，power to gas，co-electrolysis，hydrocarbon production system

要約(英語): In recent years, Power to Gas, which converts surplus renewable energy into gaseous fuels for storage and utilization, has been attracting attention. One such Power to Gas project involves hydrocarbon production technology. In this paper, a hydrocarbon production system using Solid Oxide Electrolysis Cell (SOEC) co-electrolysis was devised and the effects of the system components on efficiency were investigated. First, we conducted a comparative analysis of energy efficiency at different SOEC operating temperatures: 750℃, 800℃, and 850℃. The results indicate that operating the SOEC at 750℃ yields the highest energy efficiency. Secondly, we compared the effects of H2O and CO2 utilization, as well as the heat loss rates of the SOEC, with the thermal and heat loss rates of the heat exchanger on overall efficiency. The findings highlight that variations in heat loss rates within the SOEC have the most significant impact on energy efficiency. Additionally, when comparing the heat loss per heat exchanger in our study, we observed that the steam generator and heat exchanger for air introduced from outside exhibited high heat loss rates within the system. Furthermore, we investigated the influence of the supplied air quantity on energy efficiency, revealing that reducing the amount of supplied air is essential for achieving high efficiency.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.144 No.7 （2024）

本誌掲載ページ: 417-425 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/144/7/144_417/_article/-char/ja/