Study on the Stability of Ion-exchange Resin Catalysts:Ⅰ. TGA as a Rapid Evaluating Method  

作　　者：Tan Songwei Wang Hongjun Jiang Hongliang Wang Liqun Wilbert Tsao Lin Xiangzhou 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China [2]The Purolite Company, 150 Monument Road, Bala Cynwyd, PA 19004, USA

出　　处：《China Petroleum Processing & Petrochemical Technology》2010年第2期68-74,共7页中国炼油与石油化工（英文版）

基　　金：supported financially by the Purolite Company and Chinese National Natural Science Foundation(20674069)

摘　　要：The thermal stability of five commercial ion-exchange resin catalysts was studied by means of thermal gravimetric analysis （TGA） at elevated temperatures of up to 600℃ and isothermal temperatures in the range of 150℃ and 200 ℃. Resin samples with different initial water contents were also investigated. The study indicated that TGA, as a complementary evaluating method for the plug flow reactor system approach, could be used as a fast analyzing means for study on the thermal stability of ion-exchange resin catalysts. The stoichiometric calculation of the isothermally treated resin catalysts based on the FTIR analysis and acid capacity confirmed that the weight loss of the resins at 150℃ and 200℃ was caused by the desulfonation process and that desulfonation occurred mainly at the para-position of the benzene ring in the resins. H＋ ions and moisture played an important role in the desulfonation process.

关 键 词：thermal stability ion-exchange resin CATALYSTS TGA DESULFONATION 

分 类 号：TQ426.99[化学工程] TE96[石油与天然气工程—石油机械设备]