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Journal of Porous Media
Импакт фактор: 1.752 5-летний Импакт фактор: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v9.i8.50
pages 769-777

Methane Sorption on Large-Pore MCM-41 in the Presence of Water

Xiu-Wu Liu
High Pressure Adsorption Laboratory, School of Chemical Engineering and Technology, Tianjin 300072, China
Li Zhou
High Pressure Adsorption Laboratory, School of Chemical Engineering and Technology, Tianjin 300072, China
Hua Chang
High Pressure Adsorption Laboratory, School of Chemical Engineering and Technology, Tianjin 300072, China
Yan Sun
High Pressure Adsorption Laboratory, School of Chemical Engineering and Technology, Tianjin 300072, China
Ya-Ping Zhou
Department of Chemistry, Tianjin University, Tianjin 300072, China

Краткое описание

An MCM-41 sample of pore size 10 nm in diameter was synthesized for the test of methane sorption in the presence of water. The highly ordered structure with narrow pore size distribution was confirmed with TEM, IR examinations and the adsorption data of nitrogen at 77 K. The sorption isotherms of methane were collected at 275 K in the dry MCM-41 sample and in the presence of water for a wide range pressures. Although there are differences in the pore size and polarity of the surface with activated carbon, MCM-41 also shows the enhancement of methane sorption in the presence of water. Compared to activated carbon, the large-pore MCM-41 shows an even larger enhancement effect. The sorption capacity increased by 2.40 times on MCM-41, while it increased by 1.63 times on active carbon. The inflection pressure of isotherms also decreased remarkably.


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