文献类型：期刊文献

英文题名：Electrically heated monolithic catalyst for in-situ hydrogen production by methanol steam reforming

作者：Wang, Qiang[1];Ren, Yanlun[1];Kuang, Xiaogang[1];Zhu, Die[1];Wang, Panfeng[1,2];Zhang, Li[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Henan Chem Ind Inst Co Ltd, Zhengzhou 450052, Peoples R China

年份：2023

卷号：48

期号：2

起止页码：514

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20224313003473);WOS:【SCI-EXPANDED(收录号:WOS:000910655900001)】；

基金：This work was financially supported by National Natural Sci- ence Foundation of China (No. 51776074) .

语种：英文

外文关键词：Methanol steam reforming; In-situ hydrogen production; Electrically heated monolithic; catalyst; Start-up; Temperature distribution; Mass transfer

摘要：Electrification of conventionally combustion-heated reactors has the potential to reduce CO2 emissions and provide a flexible and compact heat supply. In this paper, multi -segment helical FeCrAl substrates were arranged in tube-shell form with insulation by honeycomb ceramics to obtain the electrically heated monolithic catalyst (EHMC) sub-strate, followed by thermal treatment and catalyst deposition to obtain the EHMC. The start-up and catalytic performance of the EHMC at different reaction conditions were studied experimentally. The results showed that the desired temperature of 275 degrees C could be reached in 29 s with a uniform temperature distribution by supplying a current of 2 A in air atmosphere. Compared with the commercial granular catalyst under external heating condition, the EHMC showed better catalytic activity due to higher methanol conversion and similar CO concentration at low reaction temperature. Furthermore, when the meth-anol conversion was 90%, the GHSV of the EHMC was 5.54 times that of the commercial granular catalyst, indicating that the EHMC can operate at higher GHSV owing to the enhanced mass and heat transfer ability. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.