低碳化学与化工2024，Vol.49Issue(3)：30-41,12.DOI:10.12434/j.issn.2097-2547.20230122
乙烯气相法制醋酸乙烯Pd-Au催化剂研究进展
Research progress on Pd-Au catalyst for producing vinyl acetate by ethylene gas phase process
任栎 1张向辉 1王光永 1陈鹏 1李克兵 1丁明月 1姚佩 1赵安民1
作者信息
- 1. 西南化工研究设计院有限公司 工业排放气综合利用国家重点实验室,国家碳一化学工程技术研究中心,四川成都 610225
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摘要
Abstract
Vinyl acetate(VAc)is an important chemical raw material with well application value.With the rapid development of the photovoltaic industry and the improvement of environmental protection requirements,the demand for high-quality vinyl acetate(i.e.,ethylene gas phase process vinyl acetate)in China is increasing year by year.It is of great significance to develop the catalyst with high catalytic activity,high target product selectivity,high stability and low cost.Firstly,the development of catalysts for producing ethylene acetate by ethylene gas phase process was reviewed.The functions of catalyst supports,active components and potassium acetate additive were summarized.The two reaction mechanisms of producing vinyl acetate by ethylene gas phase process and the deactivation causes of Pd-Au catalyst were analyzed.The preparation process of eggshell Pd-Au catalyst by impregnation method was described.Then the research results of catalyst improvement for the purpose of further improving catalytic performance and reducing catalyst cost were summarized,including modification and deformalization of supports,and improvement of procedures,such as impregnation of active components,aging,reduction,washing and drying.Lastly,the research direction of catalyst for producing vinyl acetate by ethylene gas phase process in the future was proposed.关键词
醋酸乙烯/乙烯气相法/Pd-Au催化剂/催化剂改进Key words
vinyl acetate/ethylene gas-phase process/Pd-Au catalyst/catalyst improvement分类
化学化工引用本文复制引用
任栎,张向辉,王光永,陈鹏,李克兵,丁明月,姚佩,赵安民..乙烯气相法制醋酸乙烯Pd-Au催化剂研究进展[J].低碳化学与化工,2024,49(3):30-41,12.
