Separation process study of liquid phase catalytic exchange reaction based on the Pt/C/PTFE catalysts

作     者：Peilong Li Li Guo Renjin Xiong Junhong Luo Ming Wen Yong Yao Zhi Zhang Jiangfeng Song Yan Shi Tao Tang 

作者机构：Institute of Materials China Academy of Engineering Physics 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2019年第27卷第8期

页      面：1837-1845页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 070304[理学-物理化学(含∶化学物理)] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Supported by the National Key Research and Development Program of China(2017YFE0300302) the National Natural Science Foundation of China(21503199,21406212) Key Project of Applied&Basic Research of Sichuan Province(18YYJC1594) 

主　　题：Liquid phase catalytic exchange(LPCE) Hydrophobic carbon-supported platinum catalysts Separation behaviors Optimal operating condition Water detritiation 

摘      要：The liquid phase catalytic exchange(LPCE) reaction is an effective process for heavy water detritiation and production of deuterium-depleted potable water. In the current study, hydrophobic carbon-supported platinum catalysts(Pt/C/PTFE) with high efficiency as reported previously for LPCE were prepared and comprehensive performance evaluation method is applied to evaluate the separation behaviors of LPCE systematically. Experimental results indicate that the optimum reaction temperature of 60–80℃ and the molar feed ratio G/L of 1.5–2.5 would lead to higher separation efficiencies. As to the packing method, a random packing mode with a packing ratio of hydrophobic catalysts 0.25 is recommended. In addition, thermodynamic analysis corresponds well with experimental results under lower temperature and G/L, while the suppression of kinetic factors should not be neglected when T 80℃ and G/L 1.5.