Journal Title
Title of Journal: Adsorption
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Authors: Youssef Belmabkhout Rodrigo SernaGuerrero Abdelhamid Sayari
Publish Date: 2011/03/01
Volume: 17, Issue: 2, Pages: 395-401
Abstract
Adsorption of CO2 N2 CH4 and H2 on triaminegrafted poreexpanded MCM41 mesoporous silica TRIPEMCM41 was investigated at room temperature in a wide range of pressure up to 25 bar using gravimetric measurements The material was found to exhibit high affinity toward CO2 in comparison to the other species over the whole range of pressure Columnbreakthrough dynamic measurements of CO2containing mixtures showed very high selectivity toward CO2 over N2 CH4 and H2 at CO2 concentrations within the range of 5 to 50 These conditions are suitable for effective removal of CO2 at room temperature from syngas flue gas and biogas using temperature swing TS or temperaturepressure swing TPS regeneration mode Moreover TRIPEMCM41 was found to be highly stable over hundreds of adsorptiondesorption cycles using TPS as regeneration mode
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