摘要
概述了目前乙炔法制备醋酸乙烯用醋酸锌/活性炭催化剂的研究现状,包括催化剂活性组分、催化剂载体特性、助催化剂、催化反应机理和催化剂失活原因等。介绍了以Zn盐为活性中心的催化剂开发过程;分析了催化剂活性炭载体物性结构、表面官能团和表面未成对电子对催化性能的影响;简述了助剂对催化剂稳定性和活性的调变;对比了3种催化反应机理;并对催化剂失活原因进行了总结。提出醋酸锌/碳载体催化剂是未来研究方向。
The present research progress of acetylene method to prepare zinc acetate/activated carbon catalysts was summarized, including the active components of catalyst, features of catalyst support, catalyst promoter, catalytic reaction mechanism, deactivation reasons of catalyst and so on. The development process of catalyst in the active component of Zn salt was introduced, the influences of catalyst activated carbon carrier physical structure, surface functional groups and surface unpaired electrons on the catalytic performance were analyzed, and the modulation of additive on the stability and activity of the catalyst was briefly described. The mechanisms of three kinds of catalytic reaction were compared, the deactivation reasons of catalyst were summarized. It is pointed out that zinc acetate/carbon carrier catalyst will be the future research direction.
出处
《煤炭与化工》
CAS
2015年第10期39-44,共6页
Coal and Chemical Industry
关键词
乙炔
醋酸乙烯
醋酸锌/活性炭
acetylene
vinyl acetate
zinc acetate/activated carbon
