燃料化学学报2017，Vol.45Issue(7)：863-870,8.
晶种法合成UZM-9分子筛及其CO2/CH4/N2吸附分离性能
Adsorptive separation properties of CO2/CH4/ N2 on UZM-9 synthesized by seed-assisted method
摘要
Abstract
The UZM-9 zeolite was synthesized in 48 h via a seed-assisted method, in which TEAOH and TMAOH were used as organic structure directing agent ( OSDA ) while acid-treated UZM-9 zeolites were employed as seeds. The textural properties and hydrophobicity of the as synthesized UZM-9 zeolites and their adsorption properties for CO2/CH4/N2 were characterized by XRD, physical adsorption, SEM, ICP and TG, respectively . The results show that UZM-9 zeolites can be obtained in 2 d with the Si/Al atomic ratio up to 3 and the yield up to 65%. At 298 K and 1atm, the capacity and adsorption heat of CO2 are 5 mmol/g and 34 kJ/mol, and the selectivity of CO2/CH4 , CO2/N2 and CH4/N2 are 100, 240 and 2. 4 respectively. These results reveal that the as synthesized UZM-9 zeolites have good performances for carbon capture and possess considerable water resistance.关键词
酸处理晶种/UZM-9/吸附分离性能/二氧化碳/吸附热Key words
acid-treated seed/UZM-9/adsorptive separation properties/CO2/adsorption heat分类
石油、天然气工程引用本文复制引用
韦小丽,孙天军,柯权力,刘小伟,王树东..晶种法合成UZM-9分子筛及其CO2/CH4/N2吸附分离性能[J].燃料化学学报,2017,45(7):863-870,8.基金项目
The project was supported by the National Natural Science Foundation of China (21476231).国家自然科学基金(21476231)资助 （21476231）
