摘要
煤制乙二醇合成工艺中CO催化偶联合成草酸二甲酯的过程是典型的碳一化学。其中NO_(x)在草酸二甲酯的合成过程中循环利用,只需要在开车阶段对合成系统进行补入。在不同的煤制乙二醇工艺技术流程当中NO_(x)的补入方法是有所不同的。介绍了现阶段工业化生产稳定运行的草酸二甲酯合成装置中NO_(x)补入方法和榆林化学180万t/a煤制乙二醇项目草酸二甲酯合成装置中NO_(x)补入方法,同时对几种不同的补入方法进行比较,分析这几种补入方式的优点和不足之处。
The process of CO catalysis coupling to dimethyl oxalate in the synthesis of ethylene glycol from coal is a typical carbon-1 chemistry.Among them,NO_(x)is recycled in the synthesis process of dimethyl oxalate,which only needs to be added to the synthesis system in the start-up stage.In different coal-to-ethylene glycol technology processes,the NO_(x)injection methods are different.The NO_(x)adding methods in the dimethyl oxalate synthesis unit which was in stable operation in industrial production and the NO_(x)adding methods in the dimethyl oxalate synthesis unit of the 1.8 million t/a coal ethylene glycol project of Yulin Chemical was introduced.At the same time,several different adding methods were compared,and the advantages and disadvantages of these adding methods were analyzed.
作者
李成科
李回归
LI Cheng-ke;LI Hui-gui(SHCCIG Yulin Chemical Co.,Ltd.,Shaanxi Yulin 719000,China)
出处
《广州化工》
CAS
2023年第22期114-116,共3页
GuangZhou Chemical Industry
