Preparation of ZIF-69 membranes for gasoline vapor recovery

作     者：Wu, Qigang Xu, Rong Li, Jing Zhang, Qi Zhong, Jing Huang, Weiqiu Gu, Xuehong 

作者机构：Changzhou Univ Sch Petrochem Engn Jiangsu Key Lab Adv Catalyt Mat & Technol Changzhou 213164 Peoples R China Changzhou Univ Sch Petr Engn Changzhou 213016 Peoples R China Nanjing Univ Technol State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China 

出 版 物：《JOURNAL OF POROUS MATERIALS》 (多孔性材料杂志)

年 卷 期：2015年第22卷第5期

页      面：1195-1203页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：national Science Foundations of China [21276029, 21406018, 21306012] Natural Science Foundation of Jiangsu [BK20131142] Jiangsu Overseas Research & Training Program for University Prominent Young & Middle-aged Teachers and Presidents Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology [BM2012110] Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) State Key Laboratory of Materials-Oriented Chemical Engineering 

主　　题：ZIF-69 membrane N-2/alkane (C5-C7) separation Gasoline vapor recovery Operating condition 

摘      要：The compact ZIF-69 membranes have been prepared by seeded growth method for the recovery of gasoline vapor which is a major challenge in the petrochemical industry. The membrane performances for separating N-2/n-alkane mixtures at various operating conditions (e.g. trans-membrane pressure difference, operating temperature, feed concentration, and stage cut) were systematically investigated. The highest separation factor was 2.60 with the corresponding permeance of 5.02 x 10(-8) mol/(m(2) s Pa) for the N-2/n-C6H14 model mixtures. Moreover, the effects of n-alkane components (n-C5H12, n-C6H14, and n-C7H16) on the separation performances were studied, and the separation factors followed alpha(N-2/n-C7H16) alpha(N-2/n-C6H14) alpha(N-2/n-C5H12), due to the different adsorption capacities of n-alkanes on ZIF-69 materials. The present work demonstrates that the ZIF-69 membrane is a highly promising candidate for the application in gasoline vapor recovery.