化工进展Issue(5):1230-1235,6.DOI:10.3969/j.issn.1000-6613.2014.05.025
模板剂对ZSM-5分子筛膜脱硫的影响
Effect of template agent on ZSM-5 zeolite membrane desulfurization
摘要
Abstract
The ratio and kind of template agent were investigated for the preparation of ZSM-5 zeolite membranes using the two-steps hydrothermal synthesis method. The membranes were characterized with X-ray diffraction (XRD) and scanning electron microscope (SEM). Desulfurization experiments were conducted in model gasoline. With increasing ratio of TPAOH,membrane particle shape gradually became regular,but an overly high ratio of TPAOH could make membrane particles irregular. Membrane structure was the most regular and thiophene removal was the best when ZSM-5 zeolite membrane was prepared with TPAOH ratio of 30. Membranes prepared by double template agent of“TPAOH+absolute ethylalcohol” could achieve the highest removal of sulfides. The membrane was used to remove bicomponent model gasoline,and removal of bicomponent sulfides was better than removal of sulfides in single component model gasoline.关键词
模板剂/ZSM-5分子筛膜/脱硫/噻吩/合成Key words
template agent/ZSM-5 zeolite membranes/desulfurization/thiophene/synthesis分类
化学化工引用本文复制引用
耿丹,陈玉丽,居沈贵..模板剂对ZSM-5分子筛膜脱硫的影响[J].化工进展,2014,(5):1230-1235,6.基金项目
国家自然科学基金项目(21176118)。 ()