Four-channel catalytic micro-reactor based on alumina hollow fiber membrane for efficient catalytic oxidation of CO  

作　　者：Baichuan Xu Bin Wang Tao Li 

机构地区：[1]Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education,School of Energy and Environment,Southeast University,Nanjing 211100,China

出　　处：《Chinese Journal of Chemical Engineering》2024年第7期140-147,共8页中国化学工程学报（英文版）

基　　金：funded by the Natural Science Foundation of Jiangsu Province(BK20210252)。

摘　　要：The traditional automotive catalytic converter using commercial ceramic honeycomb carriers has many problems such as high back pressure,low engine efficiency,and high usage of precious metals.This study proposes a four-channel catalytic micro-reactor based on alumina hollow fiber membrane,which uses phase inversion method for structural molding and regulation.Due to the advantages of its carrier,it can achieve lower ignition temperature under low noble metal loading.With Pd/CeO_(2) at a loading rate of 2.3%(mass),the result showed that the reaction ignition temperature is even less than 160℃,which is more than 90℃ lower than the data of commercial ceramic substrates under similar catalyst loading and airspeed conditions.The technology in turn significantly reduces the energy consumption of the reaction.And stability tests were conducted under constant conditions for 1000 h,which proved that this catalytic converter has high catalytic efficiency and stability,providing prospects for the design of innovative catalytic converters in the future.

关 键 词：Catalytic converter Precious metal catalyst Phase inversion method Hollow fiber membrane CO oxidation 

分 类 号：TQ426[化学工程] X701[环境科学与工程—环境工程]