乙二醇生产和精制技术研究进展

摘要

乙二醇是一种重要的大宗化工原料，广泛应用于聚酯等行业，具有消耗量大、产品纯度要求高的特点。本文综述了石油基、煤基和生物质基乙二醇生产和精制技术的最新研究进展，介绍了不同路线乙二醇的生产工艺、催化剂体系和精制技术，分析了不同工艺路线的优缺点，总结了乙二醇精制到聚酯级乙二醇生产中存在的问题。提出未来乙二醇生产的研究重点应该放在高稳定催化剂的设计、大规模工艺的集成和原料的绿色化上。%Mono ethylene glycol (MEG) is an important bulk chemical widely used in polyester production with huge consumption demand and high purity requirement. Herein,the present status and development of MEG production from oil,coal and biomass are summarized. The MEG production process,catalyst development and purification technology are discussed,and the current challenges of MEG production are highlighted. High stable catalyst development,large scale process integration and green feedstock conversion should be emphasized in the future MEG production.