化工进展2016，Vol.35Issue(7)：2098-2102,5.DOI:10.16085/j.issn.1000-6613.2016.07.022
预积炭对FER分子筛催化正丁烯骨架异构反应性能的影响
Effect of carbon pre-deposition on FER zeolite catalyzed reaction of n-butenes skeletal isomerization
摘要
Abstract
A series of FER zeolites with different amount of pre-deposited carbon were prepared by pretreatment at high temperature using mixture of 1-butene and N2. The effect of pre-coking on the catalytic performances of FER zeolite in the skeletal isomerization ofn-butenes into isobutene were studied. TG-DTA results indicated that there were two kinds of carbon deposits,i.e. CarbonLT (mass loss at low temperature) and CarbonHT (mass loss at high temperature). The amount of CarbonLT increased linearly with the extension of pre-coking time,while the amount of CarbonHTremained constant after being treated for one hour. The amount of CarbonLT had closely related to the initial isobutene selectivity and the CarbonLT might deposit on the active sites where propylene and ethylene were produced.关键词
预积炭/沸石/正丁烯/骨架异构/异丁烯/选择性Key words
carbon pre-deposition/zeolite/n-butenes/skeletal isomerization/isobutene/selectivity分类
化学工程引用本文复制引用
范丹丹,周峰,于绍先,马会霞,乔凯..预积炭对FER分子筛催化正丁烯骨架异构反应性能的影响[J].化工进展,2016,35(7):2098-2102,5.基金项目
中国石油化工集团公司项目（210064）。 （）
