微波强化制备γ-Al_2O_3载体及其加氢脱硫性能研究  

Microwave Enhanceing Preparation and Hydrodesulfurization Performance Study ofγ-Al_2O_3 Supporter

作　　者：商辉[1] 叶鹏飞 闫洪振 张文慧[1] 

机构地区：[1]中国石油大学(北京)重质油国家重点实验室,北京102249

出　　处：《真空电子技术》2018年第1期33-38,共6页Vacuum Electronics

基　　金：国家自然科学基金面上项目(项目编号:21476258和21176256)

摘　　要：越来越严格的环境要求使用清洁汽油,我国汽油组成的特点决定了降低催化裂化汽油中的硫含量是汽油脱硫工艺以及催化剂研发的关键。通过改变载体的表面酸性可以降低载体与活性组分之间的相互作用,有利于加氢脱硫的进行。本文从微波辅助HDS催化剂的制备以及微波促进HDS工艺反应两个方面进行研究。通过将微波应用在催化剂载体制备过程中的水热合成反应和干燥处理两方面来研究微波辅助制备的氧化铝载体的性能,并以噻吩模型化合物和催化裂化汽油为原料考察微波催化剂的HDS脱硫性能。结果表明,微波作用下制备的载体有要更加优良的孔径分布、堆密度、结晶度、晶貌特征等。并且微波对HDS工艺的作用能够将样品油的脱硫率提高5%~13%。The increasingly stringent environment protection requires the use of clean gasoline.The composition characteristics of gasoline in China decide that reducing the sulfur content in fluid catalytic cracking（FCC）gasoline is the key to the development of gasoline desulfurization process and catalyst.By changing the surface acidity of the alumina supporter,the interaction between the supporterand the active component can be reduced which is beneficial to hydrodesulfurization（HDS）process.In this paper,the preparation of microwave assisted HDS catalyst and the microwave promotion of HDS process were studied.The microwave aided preparation of alumina supporter was achieved by using microwave in hydrothermal synthesis reaction and drying process.The performance of the alumina was investigated,and thedesulfurization performance of the prepared catalysts was examined by using the thiophene model compounds and FCC gasoline as raw materials.The results show that the supporter prepared by microwave promotion has a better pore size distribution,bulk density,crystallinity and crystalline features.And the effect of microwave on HDS process can increase the desulfurization rate of sample gasoline by 5%~13%.

关 键 词：微波 加氢脱硫 催化剂 氧化铝载体 

分 类 号：TE624[石油与天然气工程—油气加工工程]