银离子改性Y分子筛对噻吩硫的增强吸附分离性能研究

Enhanced Adsorptive Thiophene Compounds with a Y-Zeolite Coating with Silver Ions

以Y分子筛为载体,采用等容浸渍法制备了一系列负载银的燃油深度脱硫复合吸附材料。研究了Ag/Y吸附剂的制备条件及其对噻吩类硫化物吸附性能的影响;并对吸附剂进行了比表面积、X射线光电子能谱和X射线衍射分析。结果表明:浸渍液的浓度为0.1 mol/L,浸渍时间为6 h,并于100℃条件下干燥2 h后于550℃焙烧2 h,是制备Ag/Y复合吸附剂的适宜条件。

A series of composites,modified from Y zeolite,were prepared by impregnation method for the gasoline deep desulfurization.The effects of preparation conditions on adsorption performance of the adsorbents were examined.Phase composition and specific surface area of the adsorbents were characterized by using BET,XRD and XPS technique.The suitable preparation conditions were determined as follows:AgNO 3 concentration of 0.1 mol/L,impregnation time of 6 h,dried temperature of 100℃for about 2 h and calcinated temperature of 500℃for 2 h.