Adsorption equilibrium of methane, carbon dioxide, and nitrogen on zeolite 13X at high pressures

被引：998

作者：

Cavenati, S ^{[1
]}

Grande, CA ^{[1
]}

Rodrigues, AE ^{[1
]}

机构：

[1] Univ Porto, Fac Engn, Dept Chem Engn, Lab Separat & React Engn, P-4200465 Oporto, Portugal

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2004年 / 49卷 / 04期

关键词：

D O I：

10.1021/je0498917

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

High-pressure adsorption of methane, carbon dioxide, and nitrogen on zeolite 13X was measured in the pressure range (0 to 5) MPa at (298, 308, and 323) K and fitted with the Toth and multisite Langmuir models. Isosteric heats of adsorption were (12.8, 15.3, and 37.2) kJ/mol for nitrogen, methane, and carbon dioxide respectively, which indicate a very strong adsorption of carbon dioxide. The preferential adsorption capacity of CO2 on zeolite 13X was much higher than for the other gases, indicating that zeolite 13X can be used for methane purification from natural gas or for carbon dioxide sequestration from flue gas.

引用

页码：1095 / 1101

页数：7

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