文献类型：期刊文献

中文题名：钯复合膜反应器中异丁烷催化脱氢反应

英文题名：CATALYTIC DEHYDROGENATION OF ISOBUTANE IN PALLADIUM COMPOSITE MEMBRANE REACTOR

作者：郭杨龙[1];卢冠忠[1];陈荣[2];汪仁[1];王筠松[1]

机构：[1]华东理工大学工业催化研究所,上海200237;[2]华东理工大学科技信息研究所,上海200237

年份：2000

卷号：51

期号：4

起止页码：572

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：教育部博士点专项基金!资助项目 (No .952 51 0 1 )

语种：中文

中文关键词：膜反应器;靶复合膜;异丁烷;催化脱氢;异丁烯

外文关键词：membrane reactor, palladium composite membrane,isobutane, catalytic dehydrogenation,isobutene

摘要：Pd-Ag/ceramic composite membrane, which was prepared by improved electroless plating with osmosis , exhibited higher hydrogen flux,reaching 0.619 mol·s -1 ·m -2 (673 K,Δ p =0.196 MPa). The catalytic dehydrogenation of isobutane in the Pd-Ag/ceramic composite membrane reactor was studied. The effects of various operating parameters,such as reaction temperature, linear velocity of feed gas, linear velocity of purge gas, molar ratio of nitrogen to isobutane in feed gas, and pressure of feed gas on conversion of isobutane were investigated. It was observed that the conversion of isobutane (50.5% at 723 K) in the membrane reactor exceeded the equilibrium conversion (18.8% at 723 K) and that in the fixed-bed reactor (15.5% at 723 K). From experimental results for dehydrogenation of isobutane in the membrane reactor, it was found that when a certain partial pressure of hydrogen was maintained in the reaction-side of the reactor, the formation of accumulative carbon overlayers on the surface of dehydrogenation catalyst and membrane was inhibited to some extent, which reduced the deactivation rate of catalyst and membrane.
Pd-Ag/ceramic composite membrane, which was prepared by improved electroless plating with osmosis , exhibited higher hydrogen flux,reaching 0.619 mol·s -1 ·m -2 (673 K,Δ p =0.196 MPa). The catalytic dehydrogenation of isobutane in the Pd-Ag/ceramic composite membrane reactor was studied. The effects of various operating parameters,such as reaction temperature, linear velocity of feed gas, linear velocity of purge gas, molar ratio of nitrogen to isobutane in feed gas, and pressure of feed gas on conversion of isobutane were investigated. It was observed that the conversion of isobutane (50.5% at 723 K) in the membrane reactor exceeded the equilibrium conversion (18.8% at 723 K) and that in the fixed-bed reactor (15.5% at 723 K). From experimental results for dehydrogenation of isobutane in the membrane reactor, it was found that when a certain partial pressure of hydrogen was maintained in the reaction-side of the reactor, the formation of accumulative carbon overlayers on the surface of dehydrogenation catalyst and membrane was inhibited to some extent, which reduced the deactivation rate of catalyst and membrane.