文献类型：期刊文献

中文题名：超临界反应条件下Y型分子筛催化剂失活的研究

英文题名：STUDY ON THE DEACTIVATION OF Y-TYPE ZEOLITE CATALYST UNDER SUPERCRITICAL FLUID REACTION CONDITION

作者：高勇[1];朱晓蒙[1];朱中南[1];袁渭康[1]

机构：[1]华东理工大学国家重点化学工程联合实验室,上海200237

年份：1995

卷号：16

期号：1

起止页码：44

中文期刊名：Chinese Journal of Catalysis

外文期刊名：催化学报（英文）

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目.

语种：中文

中文关键词：超临界流体;苯;Y型;分子筛;催化剂失活

外文关键词：supercritical fluid, alkylation reaction, Y-type zeolite,coke precurscr, catalyst deactivation

摘要：对苯烷基化过程中Y型分子筛催化剂的失活进行了多方面的实验研究.结果表明,超临界条件下该催化剂的活性寿命比液相条件下长达四倍以上.借助色-质谱联用机分析两种操作的反应产物,发现含有多环物质,并且它们的种类和数量随条件而不同.根据热力学原理,建立了多环物在超临界流体中的溶解模型,并以并四苯、并五苯和并六苯作为焦前物模拟物进行了计算.
In this paper the deactivation of Y-type zeolite catalyst has been studied in theoretical and experimental aspects. The experimental results show that the catalyst life operated in supercritical phase is four times longer than that in liquid phase. With GC-MS analysis, several kinds of polynuclear aromatics were found in the products of both alky-lation processes, and the concentration and kind of polynuclear aromatics change with the reaction conditions. A solubility model for supercritical fluid has been proposed according to the principle of thermodynamics , and the solubilities of tetracene, pentacene and hexacene acting as coke precursor representatives were calculated.