Helium extraction from natural gas using DD3R zeolite membranes

作     者：Ping Zhang Chao Gong Tao Zhou Peng Du Jieyu Song Mengyang Shi Xuerui Wang Xuehong Gu Ping Zhang;Chao Gong;Tao Zhou;Peng Du;Jieyu Song;Mengyang Shi;Xuerui Wang;Xuehong Gu

作者机构：State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Chemical EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech UniversityNanjing 211816China 

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

年 卷 期：2022年第35卷第9期

页      面：122-129页

核心收录：

学科分类：081702[工学-化学工艺] 081704[工学-应用化学] 0817[工学-化学工程与技术] 08[工学] 081701[工学-化学工程] 

基　　金：sponsored by the National Natural Science Foundation of China(21908097,22035002) the National Key Research and Development Program of China(2021YFC2101203) Jiangsu Specially-Appointed Professors Program and"333 Talent Project"of Jiangsu Province State Key Laboratory of Materials-Oriented Chemical Engineering(ZK202002) 

主　　题：He extraction Zeolite Membranes He/CH_(4)separation Natural gas 

摘      要：Helium(He)is commercially produced from natural gas by low-temperature *** process is energy extensive because of the extremely low He concentration(0.3%)and the operation at cryogenic *** we demonstrated DD3R zeolite membrane was efficient to extract He from natural gas at atmosphere *** membrane performance was evaluated in terms of temperature,pressure and molar *** overall membrane performance was dominated by the diffusivity *** single He permeance and ideal He/CH_(4) selectivity were 5.8×10^(-9)mol·m^(-2)·s^(-1)·Pa^(-1)and 79 under a feed pressure of 1.3 *** though He concentration was as low as 0.22%,the He permeance and He/CH_(4) mixture selectivity were 3.0×10^(-9)mol·m^(-2)·s^(-1)·Pa^(-1)and 44 at 0.7 *** the longterm operation(~130 h)the membrane performance was stable even the feed mixture containing3.6%ethane as *** results approved the feasibility of DD3R zeolite membranes for He extraction from natural gas.