180万t/a煤制乙二醇副产杂醇油的综合利用

Discussion on the Comprehensive Utilization of By-product Fusel Oil in 1.8×104 t/a Coal-to-ethylene Glycol

煤制乙二醇过程中副产杂醇油作为危化废物处置难度大、成本高、污染严重,因而实现其综合利用对于环境保护和提高企业效益有较大现实意义。文章介绍了煤制乙二醇工艺以及其副产物杂醇油的产出,提出杂醇油的二次精馏回收利用、锅炉燃烧回收利用、气化炉回收利用以及其他综合利用方法,并对陕煤集团榆林化学有限责任公司180万t/a煤制乙二醇副产杂醇油综合利用进行分析。

In the process of coal-to-glycol production,by-product fusel oil as hazardous waste is difficult to handle,high in cost,and severely polluted.Therefore,the realization of comprehensive utilization of fusel oil has higher practical significance for environmental protection and improvement of enterprise benefits.The article introduces the coal-to-ethylene glycol process and its by-product fusel oil output,proposes the secondary distillation recovery,boiler combustion recovery,gasifier recovery and other comprehensive utilization methods of fusel oil,and puts forward reasonable suggestions for the comprehensive utilization of 1.8 million t/a coal-to-glycol byproduct fusel oil for SHCCIG Yulin Chemical Co.,Ltd..