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Preparation and Performance Research on Bifunctional Catalyst for Hydrogrn Production from Dimethyl Ether Steam Reforming(PDF)

《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

Issue:
2020 01
Page:
25-31
Research Field:
Publishing date:

Info

Title:
Preparation and Performance Research on Bifunctional Catalyst for Hydrogrn Production from Dimethyl Ether Steam Reforming
Author(s):
Lian Jinghong1 2Guo Changqing1 3Tan Hongyi1Zhang Liang1Wang Zhida1 Shi Yan1Lu Zhuoxin1Yan Changfeng1 2
1. Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;2. University of Chinese Academy of Sciences,Beijing 100049,China;3. Baida New Energy Company,Dongguan 523808,China
Keywords:
molybdenum carbidedimethyl ethersteam reformingdeactivation mechanism
PACS:
TK91
DOI:
10.11715/rskxjs.R201903029
Abstract:
A novel bifunctional catalyst Cu-Mo2C/Al2O3 was prepared based on the two-step reaction in dimethyl ether(DME) steam reforming.The morphology and structure of the catalysts were characterized by XRD, SEM,TEM and XPS.The results show that Al2O3 was mixed homogeneously with Mo2C,and the Cu particles that are loaded uniformly on the porous surfaces of catalyst interacted with Mo2C strongly,which decreased the particle size of catalyst and increased the catalytic activity.The performance test shows that DME conversion rate was nearly 100% at 400—450 ℃,and the maximum H2 production rate reached 1 482 ?mol/(min·g).The main reason for the decrease of catalyst activity was that the oxygen species increasd greatly in content and covered the active sites on the catalyst surface due to the reaction between steam and Mo2C.

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Last Update: 2020-01-17