Development of Pure Silica CHA Membranes for CO2 Separation

被引：8

作者：

Figueiredo, Gabriel Gama da Silva ^{[1
]}

Takayama, Daishi ^{[1
]}

Ishii, Katsunori ^{[1
]}

Nomura, Mikihiro ^{[1
]}

Onoki, Takamasa ^{[2
]}

Okuno, Takuya ^{[2
]}

Tawarayama, Hiromasa ^{[2
]}

Ishikawa, Shinji ^{[2
]}

机构：

[1] Shibaura Inst Technol, Koto Ku, 3-7-5 Toyosu, Tokyo 1358548, Japan

[2] Sumitomo Elect Ind Ltd, Sakae Ku, 1 Taya Cho, Yokohama, Kanagawa 2448588, Japan

来源：

MEMBRANES | 2021年 / 11卷 / 12期

关键词：

membrane separation; inorganic membrane; zeolite; pure silica CHA-type zeolite; CO2; separation; silica substrates; GAS PERMEATION PROPERTIES; ZEOLITE MEMBRANES; KINETICS; WATER;

D O I：

10.3390/membranes11120926

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Thin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO2 permeance of 2.62 x 10(-6) mol m(-2) s(-1) Pa-1 with a CO2/CH4 permeance ratio of 62 was obtained through a Si-CHA membrane crystallized for 8 h using a parent gel of H2O/SiO2 ratio of 4.6. The CO2 permeance through the Si-CHA membrane on a porous silica substrate was twice as high as that through the membrane synthesized on a porous alumina substrate, which displayed a similar zeolite layer thickness.

引用

页数：10

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