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首页> 外文期刊>Journal of power sources >Protonic membrane for fuel cell for co-generation of power and ethylene
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Protonic membrane for fuel cell for co-generation of power and ethylene

机译:用于燃料电池的质子膜,用于发电和乙烯联产

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摘要

Yttrium-doped barium cerate, BaCe_(0.85) Y_(0.15)O_(3-α) (BCY15), membranes are proton-conducting electrolytes for intermediate-temperature protonic ceramic fuel cells (IT-PCFC), useful for, among other processes, co-production of power and ethylene by dehydrogenation of ethane. BCY15 membranes showed good conductivity at intermediate temperatures, 15 and 20 mS cm~(-1) at 700 and 750 ℃, respectively. Maximum power density was 174 mW cm~(-2) at 700 ℃, with a corresponding current density of 320 mA cm~(-2), using a C_2H_6,Pt/BCY15/Pt,O_2 fuel cell, with a ca. 0.5 mm thick membrane, producing 34% ethane conversion with 96% ethylene selectivity Comparison of performances using vertical and horizontal set-ups showed that horizontal set-ups are subject to torsional strain, causing reduced cell performance resulting from even minor leakage at the glass seal.
机译:掺钇的铈酸钡BaCe_(0.85)Y_(0.15)O_(3-α)(BCY15)是用于中温质子陶瓷燃料电池(IT-PCFC)的质子传导电解质,可用于其他工艺,通过乙烷脱氢联产电力和乙烯。 BCY15膜在700和750℃的中温下分别具有15和20 mS cm〜(-1)的电导率。使用C_2H_6,Pt / BCY15 / Pt,O_2燃料电池,在700℃时,最大功率密度为174 mW cm〜(-2),相应的电流密度为320 mA cm〜(-2)。 0.5毫米厚的膜,可产生34%的乙烷转化率和96%的乙烯选择性使用垂直和水平装置进行的性能比较显示,水平装置会受到扭转应变,导致玻璃密封件即使有很小的渗漏也会导致电池性能下降。 。

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