生物质制乙二醇技术进展与发展前景

摘要

Ethylene glycol is widely used in chemical industry. Compared with traditional petroleum- based production method,biomass based processes not only feature abundant feed supply and flexible product portfolio,but also act as promising alternatives for additional ethylene glycol product. This review is focused on catalysts and reaction mechanism of sugar alcohol selective hydrogenolysis,direct catalytic conversion of cellulose,biomass fermentation and ethylene glycol productionvia glyoxal as fermentaion product. It is suggested that more efforts should be made to improve biomass pre-treatment procedure,develop efficient and stable catalysts and upgrade product quality.%乙二醇是一种重要的基本有机原料，与传统石油化工生产工艺相比，生物质原料路线不仅具有原料资源丰富、工艺路线灵活等优势，而且为拓展我国乙二醇产品来源提供了更多选择。本文综述了生物质经催化转化及生物转化制备乙二醇工艺的催化剂体系与反应机理，包括糖类加氢制乙二醇、纤维素直接催化转化制乙二醇、生物质发酵制乙二醇、生物质发酵经乙二醛还原制乙二醇工艺，介绍了木质纤维素原料的杂质影响与处理方法，并对该领域发展前景进行了展望，指出改善生物质原料处理方法、开发高效稳定的催化体系、优化工艺以提高乙二醇产品质量是未来的研究重点。