二苯并噻吩在不同载体负载的氮化镍钨催化剂上的加氢脱硫性能  

HYDRODESULFURIZATION OF DIBENZOTHIOPHENE OVER SUPPORTED NICKEL-PROMOTED TUNGSTEN NITRIDE CATALYSTS

作　　者：徐景峰[1] 周志军[2] 王洪学[3] 孙桂大[2] 

机构地区：[1]辽宁石油化工大学石油化工学院,抚顺113001 [2]北京石油化工学院 [3]北京化工大学理学院

出　　处：《石油炼制与化工》2004年第11期5-8,共4页Petroleum Processing and Petrochemicals

基　　金：国家重点基础研究发展规划项目(G2000048003)中国石油化工股份有限公司课题(X501022)

摘　　要：分别采用γ-Al2O3、SiO2、无定型硅铝粉(SiO2-Al2O3)、Y型分子筛(HY)和加入硅和硼的磷铝分子筛(SiBAPO-5)为载体,用浸渍方法制备出不同载体的负载型氮化镍钨催化剂,利用BET、NH3-TPD、XRD等方法对载体和合成的催化剂进行了表征,并利用原位TG-DTA方法分析了催化剂的氮化合成过程。以二苯并噻吩为模型化合物评价了氮化镍钨催化剂的加氢脱硫性能。结果表明,活性金属组分在载体γ-Al2O3和HY上有较好的分散性,不同载体影响催化剂的加氢脱硫活性,以HY为载体的催化剂加氢脱硫活性最高。Nickel promoted tungsten nitride catalysts supported on γ-Al2O3, SiO2, SiO2-A12O3, HY and SiBAPO-5 respectively were prepared by impregnation. The synthesized catalysts were characterized by BET, NH3-TPD and XRD techniques, and the nitriding courses were studied by TG-DTA in-situ technique. The HDS activities of the catalysts were evaluated with the model compound, dibenzothiophene. The result showed that better dispersancy of active components on the γ-Al2O3 and HY was observed. The HDS activities of the supported catalysts were affected by the support properties. The active components supported on HY showed the best HDS activity.

关 键 词：催化剂 载体 Γ-AL2O3 负载型 SiO2 合成过程 磷铝分子筛 氮化镍钨 加氢脱硫 NH3-TPD 

分 类 号：TE624.5[石油与天然气工程—油气加工工程]