High-performance polymer membranes for natural-gas sweetening

被引：188

作者：

Lin, HQ

Van Wagner, E

Raharjo, R

Freeman, BD

Roman, I

机构：

[1] Univ Texas, Dept Chem Engn, Ctr Energy & Environm Resources, Austin, TX 78758 USA

[2] MEDAL LP, Willow Bank Plant, Newport, DE 19804 USA

来源：

ADVANCED MATERIALS | 2006年 / 18卷 / 01期

关键词：

D O I：

10.1002/adma.200501409

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An approach to design polymeric membranes for the removal of acid gases such as CO2 and H2S from natural gas, using a highly branched, crosslinked poly(ethylene oxide) (PEO) hydrogel, was illustrated. These solubility-selective membranes exhibited good performance for CO 2 /CH4 separation relative to the conventional size-selective membranes. Their advantages could be further enhanced by operating at low temperatures, which may provide additional flexibility for integrating membranes into natural gas processes. The results show that these polymeric membranes could be potentially used to remove polar molecules from mixtures with light gases.

引用

页码：39 / 44

页数：6

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