摘要
采用二次纳米自组装方法合成大孔容构架式结构的氧化铝载体及催化剂。通过加入不同表面活性剂A、B改善Mo-Ni双金属活性组分的负载方式,制备Mo-Ni-P纳米自组装氧化铝催化剂。通过BET对催化剂进行表征,结果表明,A系列催化剂的最大孔容和比表面积分别为0.49 cm3/g和211 cm2/g,孔道集中分布在10~60 nm之间,所占的比例平均在50%以上;B系列催化剂最大孔容和比表面积分别为0.41 cm3/g和202 cm2/g,孔道集中分布在6~30 nm之间,所占的比例平均为55.72%。并且A、B系列催化剂在0~6 nm和60~100 nm之间的孔分布也有10%以上的分布。由此可知,表面活性剂可以与金属形成一种稳定的自组装体,从而提高活性金属在载体上的分散性,并且这种多极孔存在的Mo-Ni-P纳米粒子催化剂适用于渣油等重油的加氢处理。
A kind of alumina with large pore volume and framework structure has been prepared by using secondary nanoscale self-assembly process. It can be used as the catalyst support. The Mo-Ni-P nanoscale self-assembly alumina catalysts are prepared by adding surfactant A and B in order to modify the loading methods of dual activity metal on the alumina supports. The result shown that from the BET characterization, as for the system catalysts A,the most pore volumes and specific surface areas are 0.49 cm3/g and 211 cm2/g,respectively, and the pore distribution between 10 N 60 nm accounted for more than 50%. That of B system,are 0.41 cm3/g and 202 cm2/g,the pore distribution between 6 - 30 nm accounted for 55.72%. Furthermore,the pore distribution are more than 10% at 0 - 6 nm and 60 - 100 nm. By analy- zing the result, the active of catalysts which have been absorbed by MNP has increased greatly, and these MNP nanoscale catalysts can be used in residue hydrotreating aspects.
出处
《应用化工》
CAS
CSCD
北大核心
2015年第5期878-881,共4页
Applied Chemical Industry
基金
中国石油化工集团资助项目(030801)
渣油悬浮床加氢反应器设计开发及反应机理研究(20140331)
关键词
纳米自组装
氧化铝
分散性
催化剂
Mo-Ni-P
nano-self-assembly
used in residue hydrotreating aspects alumina
dispersibility
catalyst
Mo-Ni-P
作者简介
丁巍（1978-），女，山东单县人，辽宁石油化工大学讲师，中国石油大学（北京）在读博士，师从赵德智、柯明教授，从事重质油加工、清洁燃料方面研究。电话：13841332886，E—mail：cicy1125@163．com
