Ulejczyk Bogdan, Nogal Łukasz, Młotek Michał, Krawczyk Krzysztof
Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.
Faculty of Electrical Engineering, Warsaw University of Technology, Pl. Politechniki 1, 00-661 Warsaw, Poland.
ACS Omega. 2023 Mar 7;8(11):10119-10125. doi: 10.1021/acsomega.2c07431. eCollection 2023 Mar 21.
Ethanol steam reforming can be a source of green hydrogen. The process of producing hydrogen from ethanol is very complex. Catalysts designed for this process often become deactivated due to coke deposition. In this work, a plasma reactor was used, which is insensitive to disturbance induced by coke. The research focused on determining the influence of steam on the course of the process. The optimal water/ethanol molar ratio was found to be 4. The energy efficiency was the highest at this ratio, 22.5 mol(H)/kW h. At the same time, a high ethanol conversion (92%) was obtained. It was also observed that the conversion of steam was many times lower than that of ethanol. However, water shortage caused a rapid increase in coke, acetylene, and ethylene production.
乙醇蒸汽重整可以成为绿色氢气的一个来源。由乙醇生产氢气的过程非常复杂。为此过程设计的催化剂常常会因积炭而失活。在这项工作中，使用了一种对积炭引起的干扰不敏感的等离子体反应器。该研究聚焦于确定蒸汽对该过程进程的影响。发现最佳水/乙醇摩尔比为4。在此比例下能量效率最高，为22.5摩尔（氢）/千瓦·时。同时，获得了较高的乙醇转化率（92%）。还观察到蒸汽的转化率比乙醇的转化率低很多倍。然而，缺水导致焦炭、乙炔和乙烯的产量迅速增加。
