煤制乙二醇废水处理技术及发展趋势

Technology and Development Trend of Coal-to-Ethylene Glycol Wastewater Treatment

随着近年来全球的聚酯产品市场的消费增加,乙二醇的生产工艺也得到了不断的创新,在充分利用我国煤炭资源相对丰富的能源优势,发展煤制乙二醇的工艺具有深远的意义。煤制乙二醇项目在国内快速上马,但乙二醇废水的处理成为限制煤制乙二醇项目达标达产甚至稳定运行的关键因素。介绍了目前煤制乙二醇废水处理技术,对比分析了各种技术的优缺点,并对未来的发展趋势进行了展望。

With the increasing of global consumption of polyester products in recent years,the production process of ethylene glycol has been constantly innovated.Making full use of the comparatively abundant energy advantages of coal resources in China,it is profound significance to develop the process of coal-to-ethylene glycol.Coal-to-ethylene glycol project is launched quickly,however,the treatment of ethylene glycol wastewater has become a key factor to restrict the project of coal-to-ethylene glycol to meet the production standards and even to run steadily.The present treatment technology of wastewater from coal-to-ethylene glycol production are introduced in detail,the advantages and disadvantages of various technologies are compared and analyzed,the future development trend is also prospected.