摘要
为获得高分散的负载型Ni基催化剂,提高催化剂加氢性能,采用共浸法制备了以炭改性Al2O3为载体(CCA)的Ni基催化剂,采用BET、XRD和H2-TPD对催化剂进行表征,以顺酐液相加氢为探针反应研究催化剂加氢性能。结果表明,通过共浸法同时引入活性组分Ni与炭助剂,经一次焙烧后即可获得活性组分Ni高度分散的负载Ni/CCA催化剂,在顺酐加氢反应中表现出高的γ-丁内酯选择性。
In order to enhance Ni dispersion and improve the hydrogenation performance of the catalysts, a supported Ni-based catalyst with carbon modified alumina as the carrier was prepared by co-impregna-tion method. The catalysts were characterized by N2 physical adsorption,XRD and H2-TPD techniques. The hydrogenation performance of the catalysts were investigated by using liquid phase hydrogenation of maleic anhydride as the probe reaction. The results showed that the supported Ni/ CCA catalyst with high Ni dispersion could be prepared by adding carbon and co-impregnation method. The as-prepared catalyst exhibited high selectivity to γ-butyrolactone in hydrogenation of maleic anhydride.
出处
《工业催化》
CAS
2015年第1期15-18,共4页
Industrial Catalysis
基金
国家国际科技合作项目(2013DFA40460)
山西省自然科学基金(2013011010-5)资助项目
高等学校博士学科点专项科研基金(20131401120005)资助项目
关键词
催化化学
炭包覆改性
共浸法
Ni/CCA催化剂
顺酐液相加氢
catalytic chemistry
carbon covered modification
co-impregnation method
Ni/ CCA catalyst
maleic anhydride liquid phase hydrogenation
