Nb-SBA-15介孔分子筛吸附脱硫的研究  

Adsorption Desulfurization With Nb/SBA-15 Molecular Sieve

作　　者：赵明飞[1] 沈健[1] 王雷[1] 聂宁[1] 李少凯[1] 

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《辽宁石油化工大学学报》2012年第4期17-20,共4页Journal of Liaoning Petrochemical University

摘　　要：采用后合成法制备Nb-SBA-15分子筛吸附剂,经X-射线衍射(XRD)、N2吸附-脱附测试手段表征,结果表明,Nb-SBA-15虽表面积、孔容、孔径略有下降,但仍保持良好的介孔结构。以其为吸附剂,模拟油为原料,采用静态吸附法进行脱硫实验。结果表明,最佳脱硫条件为:铌酸与载体质量比1:10,吸附时间30min,吸附温度120℃,剂油质量比1:20。在此条件下,脱硫率达31.30%,饱和吸附量599μg/g。Niobic acid/SBA-15molecular sieve was prepared by impregnation method,and characterized by XRD and BET.The results show specific surface area,pore volume and pore diameters of the sample slightly decreased;however,mesoporous structure was well preserved.Its desulfurization performance from model oil was studied by static adsorption method.The results show that the sulfur removal rate can reach 31.30% and saturation adsorption capacity was 599 μ g/g under the following optimum conditions:niobic acid/support 10wt%,adsorption temperature 120℃,time 30min and catalyst/oil weight ratio 1:20.

关 键 词：铌酸 分子筛 吸附脱硫 

分 类 号：TQ426.65[化学工程] O643.36[理学—物理化学]