液相加氢在煤制乙二醇企业的应用

Application of liquid phase hydrogenation in coal-to-ethylene glycol enterprise

阳煤集团寿阳化工有限责任公司通过液相加氢工艺将合格品乙二醇全部转化为聚酯级乙二醇,改造后年增加收益615.46万元,同时聚酯级乙二醇的整体质量也得到了提高,尤其是提高了聚酯级乙二醇275nm的紫外透光率。通过液相加氢工艺进一步缩小了煤基合成气乙二醇与石油法乙二醇的品质差距,提高了煤制乙二醇的整体竞争力。

Yangquan Coal Industry Group Shouyang Chemical Co.,Ltd.converted all qualified ethylene glycol into polyester-grade ethylene glycol through a liquid phase hydrogenation process.After the transformation,the annual income increases by 6.154 million yuan.At the same time,the overall quality of polyester grade ethylene glycol was also improved,especially the UV transmittance of polyester grade ethylene glycol at 275 nm.Through the liquid phase hydrogenation process,the quality gap between coal-based ethylene glycol and petroleum-based ethylene glycol is further narrowed,and the overall competitiveness of coal-based ethylene glycol is improved.