Effect of Steam on Ethane Electro-oxidative Dehydrogenation to Ethylene

IF 3.8 3区工程技术 Q2 ENGINEERING, CHEMICAL

Industrial & Engineering Chemistry Research Pub Date : 2025-01-26 DOI:10.1021/acs.iecr.4c02997

Andrew Kasick, Kody D. Wolfe, Jason P. Trembly

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Abstract

The effect of water vapor (H₂O) on the electrochemical-oxidative dehydrogenation (e-ODH) of ethane (C₂H₆) to ethylene (C₂H₄) over a solid oxide fuel cell (SOFC) platform was studied. SOFC button cells with anodes infiltrated with the La_0.5Sr_0.5FeO_3−δ (LSF0.5) electrocatalyst were operated under dry and humid conditions. Humidification had an inhibitory effect on C₂H₄ yield at 700 °C, with no impact at 750 °C, led to notable differences in electrochemical performance, and corresponded to post-trial anode compositional differences. C₂H₄ production embodied energy under humidified conditions was estimated to be higher than at dry conditions due to energy expenditure to generate steam. Together, these results suggested that e-ODH processes benefit from using a dry C₂H₆ feed stream. Additional findings include potential evidence of H₂O-induced C₂H₆ reformation to hydrogen (H₂), and iron and iron oxide structures observed in the post-trial anodes may have significance in describing the underlying catalytic behavior.

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来源期刊

Industrial & Engineering Chemistry Research 工程技术-工程：化工

CiteScore

7.40

自引率

7.10%

发文量

1467

审稿时长

2.8 months

期刊介绍： ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.