深度脱硫已经成为一个世界性的难题。考察了填充Y分子筛后的聚酰亚胺杂化膜的脱硫性能，并   且深入分析了分子筛脱硫原因。红外分析表明分子筛已经成功引入聚酰亚胺基质材料中，且为物理混  合；聚酰亚胺膜在填充分子筛后膜性能明显提高，对分子筛脱硫机理的分析表明噻吩和 正庚烷分子的吸附差异主要是分布位置不同，噻吩和正庚烷在分子筛中存在竞争吸附，这也是分子筛能实现脱硫的原因；随着温度的升高填充了分子筛的聚酰亚胺膜渗透通量也提高，而硫富集因子是随着温度的升高先增加后减小。
 

The production of low sulfur or even sulfur free gasoline has been an inevitable worldwide trend.The Polyimide  hybrid membranes filled Y zeolites have been prepared and their desulfurization performances have been investigated. IR spectroscopy showed that zeolites had been introduced into PI membranes. The Desulfurization performance has been improved after being filled with zeolites. Desulfurization performance showed the distribution difference and competitive adsorption between thiophene and n-heptane in zeolites. It is the reason for desulfurization of zeolites.The permeation flux increased with the increased of feed temperature, but  the sulfur enrichment factor increased first and decreased then.
 

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