煤基乙二醇产品质量提升方法
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摘要
根据加氢反应机理,分析副产的痕量有机杂质是煤基合成气制乙二醇紫外透光率(UV值)的主要影响因素。针对杂质成分进行原因分析,介绍现有用于提升乙二醇产品UV值的工业技术,总结不同技术的优缺点,提出煤制乙二醇产品质量提升方法的优化建议。
From the hydrogenation reaction mechanism,this paper analyzes that the trace organic impurities by-product is the main influencing factor of the ultraviolet transmittance( UV value) of glycol production from coalbased syngas. Based on the causes analysis of impurity components,this paper introduces the existing industrial technologies for improving the UV value of ethylene glycol products. The advantages and disadvantages of different technologies are summarized,and the optimization suggestions for the quality improvement methods of coal-based ethylene glycol products are proposed.
From the hydrogenation reaction mechanism,this paper analyzes that the trace organic impurities by-product is the main influencing factor of the ultraviolet transmittance( UV value) of glycol production from coalbased syngas. Based on the causes analysis of impurity components,this paper introduces the existing industrial technologies for improving the UV value of ethylene glycol products. The advantages and disadvantages of different technologies are summarized,and the optimization suggestions for the quality improvement methods of coal-based ethylene glycol products are proposed.
引文
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2徐长青等.一种煤制乙二醇粗产品的提纯工艺[P].CN:101928201 B,2009.
3 Siegfried Rebsdat.Process for the Manufacture of Extremely Pure Monoethylene Glycol[P].US:4349417,1982.
4孙明立.乙二醇产品UV值不合格分析及措施[J].当代化工,2013,42(1):111~115.
5吴晓金等.一种提纯煤质乙二醇品质的吸附剂及其制备方法[P].CN:104275157 A,2015.
6孔渝华等.一种煤制聚合级乙二醇的精制剂及精制方法[P].CN:105085175 B,2017.
7 David E.Method Reducing UV Absorption in Ethylene Glycols,Water,and Mixtures[P].US:5770777,1998.
8刘文飞、郭为磊.一种乙二醇精制的方法[P].CN:102911013A,2013.
9 Tomas M.Process for Improving the Ultraviolet Light Transmittance of Ethylene Glycol[P].US:4647705,1987.
10刘俊涛、张育红、王万民.提高乙二醇产品质量的方法[P].CN:102649687 B,2014.