Modeling Carbon Dioxide Adsorption on Microporous Substrates: Comparison between Cu-BTC Metal-Organic Framework and 13X Zeolitic Molecular Sieve

被引：119

作者：

Aprea, Paolo ^{[2
]}

Caputo, Domenico ^{[2
]}

Gargiulo, Nicola ^{[2
]}

Iucolano, Fabio ^{[2
]}

Pepe, Francesco ^{[1
]}

机构：

[1] Univ Sannio, Dipartimento Ingn, I-82100 Benevento, Italy

[2] Univ Naples Federico II, Dipartimento Ingn Mat & Prod, I-80125 Naples, Italy

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2010年 / 55卷 / 09期

关键词：

CO2; ADSORPTION; BASIC SITES; GAS; SEPARATION; STORAGE; SBA-15;

D O I：

10.1021/je1002225

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this work, CO2 adsorption on a laboratory-synthesized polymeric copper(II) benzene-1,3,5-tricarboxylate (Cu-BTC) metal-organic framework was modeled by means of the semiempirical Sips equation in order to obtain parameters of engineering interest. Produced Cu-BTC samples were characterized by X-ray diffraction, thermogravimetry, and microporosimetric analysis; high crystallinity and very high specific surface area and pore volume were found. CO2 adsorption isotherms on Cu-BTC were evaluated at T = (283, 293, 318, and 343) K for p <= 1 bar by means of a volumetric technique. In order to establish a comparison, CO2 adsorption isotherms on samples of commercial 13X zeolite were determined under the same experimental conditions and then modeled in the same way as those for Cu-BTC. The modeling and experimental results indicated that relative to 13X zeolite, Cu-BTC showed higher CO2 adsorption capacities at near-ambient temperature and a lower heat release during the adsorption phase.

引用

页码：3655 / 3661

页数：7

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