Single and Multicomponent Sorption of CO2, CH4 and N2 in a Microporous Metal-Organic Framework

被引：56

作者：

Barcia, Patrick S. ^{[2
]}

Bastin, Laurent ^{[2
]}

Hurtado, Eric J. ^{[3
]}

Silva, Jose A. C. ^{[2
]}

Rodrigues, Alirio E. ^{[1
]}

Chen, Banglin ^{[3
]}

机构：

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

[2] Inst Politecn Braganca, Escola Super Tecnol & Gestao, Braganca, Portugal

[3] Univ Texas Pan Amer, Dept Chem, Edinburg, TX 78541 USA

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2008年 / 43卷 / 13期

基金：

美国国家科学基金会;

关键词：

CO2; separation; dynamic simulation; fixed bed; dynamic; metal-organic framework; multi-component adsorption; natural gas;

D O I：

10.1080/01496390802282347

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single and multicomponent fixed-bed adsorption of CO2, N-2, and CH4 on crystals of MOF-508b has been studied in this work. Adsorption equilibrium was measured at temperatures ranging from 303 to 343 K and partial pressures up to 4.5 bar. MOF-508b is very selective for CO2 and the loadings of CH4 and N-2 are practically temperature independent. The Langmuir isotherm model provides a good representation of the equilibrium data. A dynamic model based on the LDF approximation for the mass transfer has been used to describe with good accuracy the adsorption kinetics of single, binary and ternary breakthrough curves. It was found that the intra-crystalline diffusivity for CO2 is one order of magnitude faster than for CH4 and N-2.

引用

页码：3494 / 3521

页数：28