Characterization and selectivity for methane and carbon dioxide adsorption on the all-silica DD3R zeolite

被引：149

作者：

Himeno, Shuji ^{[1
]}

Tomita, Toshihiro ^{[1
]}

Suzuki, Kenji ^{[1
]}

Yoshida, Shuichi ^{[1
]}

机构：

[1] Nagaoka Univ Technol Civil & Environm Engn, Niigata 9402188, Japan

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2007年 / 98卷 / 1-3期

关键词：

zeolite; DD3R; adsorption; gas separation;

D O I：

10.1016/j.micromeso.2006.05.018

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Clathrasil Deca-dodecasil 3R (DD3R) zeolite was synthesized in this study. Then, adsorption properties of carbon dioxide and methane were examined on the all-silica DD3R zeolite. Pure component adsorption isotherms are reported at temperatures of 273-348 K and pressures as high as 3 MPa. The isotherms follow a typical Type-I shape according to the Brunauer classification. They are well described using Langmuir and multi-site Langmuir models. Isosteric heats of adsorption and Henry's Law constants of all adsorbates were determined. High selectivity of adsorption for carbon dioxide over methane suggests that the all-silica DD3R is an effective adsorbent or zeolite membrane material that can separate carbon dioxide and methane gaseous mixtures. (C) 2006 Elsevier Inc. All rights reserved.

引用

页码：62 / 69

页数：8

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