摘要
共沉淀法制备高容硫镍基石油树脂加氢催化剂,并在制备过程中加入Fe、Zn、Cu和Mg等助剂。采用XRD、TPR技术对催化剂活性组分的分散和还原性能进行了表征。结果表明,助剂能够抑制Ni/Al2O3催化剂中Ni晶粒的长大并调节活性组分与载体相互作用,进而能够提高石油树脂加氢催化剂容硫能力。制备的高容硫镍基石油树脂加氢催化剂有效阻碍硫等杂质与下游催化剂接触,确保了下游催化剂活性发挥,延长催化剂使用寿命。
The Ni-based petroleum resin hydrogenation catalysts of high holding sulfur capacity were prepared by coprecipitation, which was added with Fe, Zn, Cu and Mg and other additives in the preparation. The dispersion and reduction performance of catalyst active component were charactered by the XRD and TPR technology. The results show that the additive can inhibit Ni particle to grow up and adjust the interaction of active component with carrier, which can improve the capacity of holding sulfur of petroleum resin hydrogenation catalyst. The high sulfur capacity of Ni-based petroleum resin hydrogenation catalyst can effective prevent such as sulfur impurities contacting with downstream catalysts, ensure the downstream catalyst activity and prolong the life of catalyst.
出处
《石油化工高等学校学报》
CAS
2013年第3期49-52,共4页
Journal of Petrochemical Universities
关键词
石油树脂加氢
镍基催化剂
容硫
Petroleum resin hydrogenation
Ni based catalyst
Holding sulfur capacity
