摘要
研究了Mo2C/MoO2-ZrO2催化剂上正己烷的异构化反应。分别以十六烷基三甲基溴化铵和聚乙二醇20000为模板剂,采用共沉淀法制备前驱体固体超强酸MoO3-ZrO2,从前驱体MoO3-ZrO2的BET和FTIR表征可以看出,所得样品具有适宜比表面积、孔径和孔容。前驱体MoO3-ZrO2经碳化后总酸量大幅度的下降。加入混合助剂的Mo2C/MZ-P0.005-C0.5的催化剂无论转化率和选择性都要比加入单一助剂的催化剂要高得多,其转化率达67.5%,选择性75.2%。
The isomerization of n-hexane over Mo2C/MoO2 ZrO2 catalyst was investigated. First, the precursor solid superacid MoOa-ZrO2 was prepared by coprecipitation process, using the mixture of cetyltrimethylammonium bromide and polyethylene glycol 20000 as templates. It can be seen that the precursor samples had applicable surface area, pore diameter and volume from the BET and FTIR characterization of the Mo2C/MoO2-ZrO2.The total acid of precursor MoO3-ZrO2 had a large decline after carbonized. The conversion and selectivity of Mo2 C/MZ-P0.005 C0.5are much more than single auxiliary catalystafter adding catalyst mixed assistant. The conversion rate and selectivity reached 67.5%, 75.2%, respectively.
出处
《石油化工高等学校学报》
CAS
2014年第3期36-40,共5页
Journal of Petrochemical Universities
基金
国家自然科学基金(20976077
21076100)
关键词
异构化
模板剂
前驱体
Isomerization
Template
Precursor
