文献类型：期刊文献

中文题名：天然气净化膜及膜内气体传质机理研究

英文题名：Studies on the Preparation and Transport Mechanism of Membrane for Natural Gas Cleaning

作者：薛为岚[1];曾作祥[1];邓修[1]

机构：[1]华东理工大学化工学院,上海200237

年份：1999

卷号：13

期号：5

起止页码：408

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：CSTPCD;;EI(收录号：2000045120500);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金;国家教育部重点科技资助!29507051

语种：中文

中文关键词：膜分离;天然气;净化;传质机理;PFCM;渗透

外文关键词：membrane separation; natural gas cleaning; transport mechanism; gas absorption;gas permeation

摘要：作者以碳氟高分子聚合物为膜材，通过辐射接技技术，得到含氟核酸膜（PFCM），并分别用乙二胺（EDA）、三乙醇胺（TEA）、三乙烯二胺（TEDA）等三种活性载体，对PFCM进行改性，得到了酸性气体促进传质膜。它们具有优先渗透酸性组份的特征，可用于天然气净化。本文以CH4、CO2和H2S为对象，测定了上述几种膜内的吸收等温线数据和渗透动力学数据。分别考察了活性载体种类和改性度以及温度等参数对膜性能的影响。进而阐述了气体在该膜内的传质机理。
Membranes were prepared by grafting methacrylic acid to carbon-flouro polymer such aspolytetrafluoroethylene - hexafluoropropene with radiation technology and then by exchanging a carriersuch as EDA, TEA and TEDA into the polymer. The membranes can be used in cleaning crude naturalgas to obtain pipeline quality gas. Transport mechanisms of natural gas through the membrane werestudied. Absorption isotherms and permeation data were measured for gases CH4,CO2 and H2S in themembranes at industrially important conditions. The data supported the transport had a new mechanismproposed by the authors. Comparsion between the measured and calculated time lag values made it clearthat the sorption model and permeation model were identical.