Gas Separation Performance of SSZ-13 Zeolite Membranes on Different Supports

被引：18

作者：

Gui, Tian ^{[1
]}

Chen, Xiaopan ^{[1
]}

Zhu, Meihua ^{[1
]}

An, Xingguo ^{[1
]}

Wang, Heli ^{[1
]}

Wu, Ting ^{[1
]}

Zhang, Fei ^{[1
]}

Chen, Xiangshu ^{[1
,2
]}

Kita, Hidetoshi ^{[1
]}

机构：

[1] Jiangxi Normal Univ, Coll Chem & Chem Engn, Inst Adv Mat, State Prov Joint Engn Lab Zeolite Membrane Mat, Nanchang 330022, Jiangxi, Peoples R China

[2] Yamaguchi Univ, Grad Sch Sci & Technol Innovat, Grad Sch Sci & Engn, Ube, Yamaguchi 7558611, Japan

来源：

ENERGY & FUELS | 2021年 / 35卷 / 18期

基金：

中国国家自然科学基金;

关键词：

PERMEATION PROPERTIES; SAPO-34; MEMBRANES; CARBON-DIOXIDE; MFI MEMBRANES; HIGH-QUALITY; SI/AL RATIO;

D O I：

10.1021/acs.energyfuels.1c02026

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Gas separation performance of SSZ-13 zeolite membranes on different supports was investigated in this work, and the membranes were applied to separate the equimolar CO2/CH4, CO2/N-2, and N-2/CH4 mixtures. Influences of temperature, pressure, and support on the permeance of the SSZ-13 zeolite membrane were studied. The SSZ-13 membrane exhibited a large crystal size and a high Si/AI ratio with a homemade alpha-alumina support, and the Si/AI ratio of the SSZ-13 zeolites was up to 187 by acid treatment. The CO2/CH4 selectivity of the SSZ-13 membrane was improved by the Si/AI ratio of the membrane, while the CO2/N-2 and N-2/CH4 selectivity of the membrane was independent of the Si/Al ratio of the SSZ-13 membrane. The CO2/CH4 selectivity of the membrane decreased with temperature for the equimolar CO2/CH4 mixture, while the CO2 permeance maintained a nearly constant pressure. In addition, for the separation of an equimolar N-2/CH4 mixture, N-2 permeance of the SSZ-13 zeolite membrane was unlikely affected by temperature and feed pressure.

引用

页码：14852 / 14859

页数：8

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