摘要
负载型Ni基催化剂NiSO_4/γ-Al_2O_3对低级烯烃齐聚反应表现出优良的催化性能,如在273K、液体体积空速1.0h^(-1)条件下,丙烯转化率为90％;303K时可达98％;353K下2-丁烯转化率亦可达88％。但此类催化剂的研究目前还仅限于丙烯。
Ethene dimerization over NiSO4/γ-Al2O3 was studied. It is found that the activity of the catalyst for ethene dimerization is very high and its maximum value appeared at the loading of 5 wt% -10 wt% of Ni and calcination temperature of 773-873 K. The effects of support and sulfate anion on the activity was attributed to their influences on the catalyst acidity, which is one of the greatest factors affecting the dimerization. Since all of the catalysts derived from various sulfates except nickel sulfate are of no activity, though they are all strongly acidic, it was suggested that nickel component play a role as an active center.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1993年第10期1445-1447,共3页
Chemical Journal of Chinese Universities
关键词
乙烯
硫酸镍
催化型
二聚反应
Ethene dimerization, Nickel sulfate, Supporting-type catalyst
