4,6-DMDBT在NiSiMoW三金属体相催化剂上的加氢脱硫  

Hydrodesulfurization of 4,6-DMDBT on trimetallic bulk catalyst NiSiMoW

作　　者：陈燕蝶[1] 叶云 CHEN Yandie;YE Yun(School of Public Security Information Technology and Intelligence,Criminal Investigation Police University of China,Shenyang 110854,China;College of Chemistry and Chemical Engineering,Shenyang Normal University,Shenyang 110034,China)

机构地区：[1]中国刑事警察学院公安信息技术与情报学院,沈阳110854 [2]沈阳师范大学化学化工学院,沈阳110034

出　　处：《沈阳师范大学学报(自然科学版)》2025年第1期10-17,共8页Journal of Shenyang Normal University:Natural Science Edition

基　　金：辽宁省教育厅高校基本科研项目(LJKMZ20220389)。;中国刑事警察学院博士启动基金项目(C2022012)的支持.

摘　　要：通过水热法合成了具有层状结构的硅酸镍,并以该硅酸镍为前驱体进一步合成了具有层状结构的、含有廉价非金属Si的三金属体相催化剂NiSiMoW。在含有4,6-二甲基二苯并噻吩(4,6-DMDBT)的模型油的加氢脱硫反应中,具有合适Mo/W的NiSiMoW体相催化剂显示出高的加氢脱硫活性。在温和的反应条件下(温度为300℃,H_(2)压力为3.0 MPa,空速为9 h^(-1),氢油比为800 Nm^(3)/m^(3)),该体相催化剂可以将模型油中的硫含量从517 ppm脱除至10 ppm以下。合成的硅酸镍前驱体具有很好的抗烧结性能,其形貌和结构在焙烧前后几乎无变化。以上研究结果表明,合成的三金属体相催化剂NiSiMoW是一种具有潜在工业应用前景的催化剂。In this paper,the layered nickel silicate was synthesized through hydrothermal method,and the trimetallic bulk catalyst NiSiMoW with a layered structure and cheap nonmetallic Si was further synthesized by using the nickel silicate as a precursor.In the hydrodesulfurization(HDS)reaction of 4,6-dimethyldibenzothiophene(4,6-DMDBT)from model diesel,NiSiMoW bulk catalyst with appropriate Mo/W molar ratio exhibited high HDS activity.The bulk catalyst could remove the sulfur content in the model oil from 517 ppm to less than 10 ppm under mild reaction conditions of 300℃,3.0 MPa of H_(2)pressure,a LHSV of 9 h^(-1),and H_(2)/oil ratio of 800 Nm^(3)/m^(3).The synthesized nickel silicate precursors showed good anti-sintering properties,and their morphology and structure are almost unchanged before and after calcination.The results showed that the trimetallic bulk catalyst NiSiMoW had potential industrial application prospect.

关 键 词：加氢脱硫 三金属体相催化剂 4 6-二甲基二苯并噻吩 层状结构 

分 类 号：O64[理学—物理化学]