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Metallo-organic molecular sieve for gas separation and purification

✍ Scribed by Qing Min Wang; Dongmin Shen; Martin Bülow; Miu Ling Lau; Shuguang Deng; Frank R Fitch; Norberto O Lemcoff; Jessica Semanscin

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
598 KB
Volume
55
Category
Article
ISSN
1387-1811

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✦ Synopsis

An improved synthesis process was developed for large-scale production of a highly porous material, [Cu 3 (BTC) 2 (H 2 O) x ] n , i.e., polymeric copper(II) benzene-1,3,5-tricarboxylate with molecular-sieve character, denoted as Cu-BTC, where BTC denotes benzene-1,3,5-tricarboxylate. A series of sorption properties for nitrogen, oxygen, carbon monoxide, carbon dioxide, nitrous oxide, methane, ethylene, ethane, n-dodecane, and water were studied. A detailed investigation of sorption thermodynamics was performed for carbon dioxide by a sorption-isosteric method. The experimental results show that Cu-BTC can be used for separation of gas mixtures such as carbon dioxide-carbon monoxide, carbon dioxide-methane and ethylene-ethane mixtures. In addition, air can be purified effectively from carbon dioxide, nitrous oxide, high-molecular weight hydrocarbons and moisture.

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