纳米MoS_2催化剂的合成及其在加氢脱硫反应中的应用  

Preparation of MoS_2 Nanocatalyst and Its Application in Hydrodesulfurization

作　　者：范小兵[1] 刘钫[1] 姚思宇[1] 邓先河[1] 周文娟[1] 寇元[1] 

机构地区：[1]北京大学化学与分子工程学院,北京大学绿色化学研究中心,北京分子科学国家实验室,北京100871

出　　处：《催化学报》2012年第6期1027-1031,共5页

摘　　要：通过羰基钼和升华硫反应制备了晶片层数为3～5,比表面积为71m2/g的纳米MoS2催化剂,并考察了其催化十二硫醇或二苯并噻吩的加氢脱硫活性.结果表明,在3.0MPa初始氢气压力下,该催化剂在200C和280C就可使十二硫醇和二苯并噻吩转化接近100%.The MoS2 nanocatalyst of 3-5 layers and surface area as high as 71 m2/g was synthesized via a chemical reaction between molybdenum carbonyl and chalcogen.The hydrodesulfurization（HDS） of n-dodecanethiol and dibenzothiophene（DBT） was studied over the MoS2 nanocatalyst.Compared with the commercial MoS2 with lower surface area of 3 m2/g,the MoS2 nanocatalyst showed much higher activity.100% conversion in HDS at temperatures of 200 ℃ for dodecanethiol and 280 ℃ for DBT was achieved under p（H2） = 3.0 MPa.

关 键 词：二硫化钼 纳米催化剂 加氢脱硫 十二硫醇 二苯并噻吩 

分 类 号：TE621[石油与天然气工程—油气加工工程]