干气中烷烃、烯烃新型分离吸附剂的研究进展.pdf

第 65 卷第 2 期化工学报
2014 年 2 月 CIESC Journal ·February396·



干气中烷烃、烯烃新型分离吸附剂的研究进展
马士珍, 苏宝根, 鲍宗必, 苏云, 杨亦文, 任其龙
(浙江大学化学工程与生物工程学系,生物质化工教育部重点实验室,浙江杭州 310027)
摘要:综述了二十年来烯烃烷烃新型分离吸附剂的研究进展,与传统的π络合吸附剂相比,优先吸附烯烃的吸附
剂包括金属有机材料(MOF)、Engelhard Titanosilicate (ETS)、高硅分子筛和介孔分子筛,主要是利用氢键作用、
孔径大小、分子扩散速率差异或π络合作用,将烷烃烯烃分离;而优先吸附烷烃的吸附剂包括 AlMePO-α、ZIF-7
和凹凸棒黏土,主要利用吸附剂上***与烷烃的相互作用。MOF 对烯烃吸附量大,但选择性较差;高硅分子筛对
烯烃的动力学分离效果良好;介孔分子筛经过渡金属改性后,对烯烃有优良的选择性;ETS 类对烯烃有较高的吸
附量和选择性,且稳定性强,有很好的应用前景。
关键词:烷烃;烯烃;吸附剂;吸附;分离
DOI:.0438-
中图分类号:TE ; TE 645 文献标志码:A 文章编号:0438—1157(2014)02—0396—10

Advances in new type adsorbent for separating alkene from dry gas
MA Shizhen,SU Baogen,BAO Zongbi,SU Yun,YANG Yiwen,REN Qilong
(Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Department of Chemical and Biological Engineering,
Zhejiang University, Hangzhou 310027, Zhejiang, China)

Abstract:This review focuses on the research progress on new type adsorbent for olefin/paraffin in separating
alkene in twenty years. Compared with the tradition adsorption via plexation, the adsorption mechanism of
the adsorbent for preferential adsorption of olefin is pore size, difference in molecular diffusion, hydrogen bond
interaction or plexation in separation of olefin/paraffin. This kind of adsorbent includes anic
frameworks, Eng