Study on Ni/C catalysts for vapor phase carbonylation of ethanol

被引：0

作者：

Qing Zhang Huifang Wang Weiping Fang Yiquan Yang College of Chemistry and Chemical EngineeringXiamen UniversityXiamen FujianChina Guosong Sun Kelin Huang Guangxi Research Institute of Chemical IndustryNanning GuangxiChina ^{[361005
,530001
]}

机构：

来源：

Journal of Natural Gas Chemistry | 2008年 / 17卷 / 04期

关键词：

ethanol; carbonylation; nickel; propionic acid; deactivation;

D O I：

暂无

中图分类号：

O643.3 [催化];

学科分类号：

081705 ;

摘要：

<正>Activated carbon-supported Ni catalysts for vapor phase carbonylation of ethanol to propionic acid in the presence of ethyl iodide as promoter were investigated.Under optimum reaction conditions,the conversions of carbon monoxide and ethanol were measured to be 81.4% and 98.4%,respectively,while the selectivity for propionic acid was found to be 98.65%. The catalyst was stable within 48 h on stream.XRD and XPS methods were used to characterize the structures and surface properties of the fresh and tested catalysts.The characterization results indicated that aggregation of nickel particles and formation of nickel iodide on the catalyst surface should be responsible for the deactivation of the catalysts.

引用

页码：355 / 358

页数：4