CAJ | 학술논문

乙二醇（EG）是一种重要的基础化工原料，乙二醇工业涉及国民经济的多个领域，对支撑国民经济基础产业和战略新兴产业具有重大战略意义。本文简要阐述了环氧乙烷法生产乙二醇的技术进展，着重介绍了离子液体催化环氧乙烷生产乙二醇的创新工艺（ILC 工艺）。该工艺是我国具有自主创新知识产权和自主运作权的乙二醇新技术，具有工艺简单、水比低、节能效果显著、原料适应性强、产品结构可调等优点，与现有乙二醇工业装置有良好相嵌性，推广应用前景广阔。甲醇制烯烃技术（MTO）的推广应用和多套EO/EG装置的投产使环氧乙烷的原料价格更加低廉，而且石化企业具有几十年大型装置的生产经验，因此，采用创新性技术以环氧乙烷为原料生产乙二醇的路线将在为今后较长的时期占主导地位。
을이순（EG）시일충중요적기출화공원료，을이순공업섭급국민경제적다개영역，대지탱국민경제기출산업화전략신흥산업구유중대전략의의。본문간요천술료배양을완법생산을이순적기술진전，착중개소료리자액체최화배양을완생산을이순적창신공예（ILC 공예）。해공예시아국구유자주창신지식산권화자주운작권적을이순신기술，구유공예간단、수비저、절능효과현저、원료괄응성강、산품결구가조등우점，여현유을이순공업장치유량호상감성，추엄응용전경엄활。갑순제희경기술（MTO）적추엄응용화다투EO/EG장치적투산사배양을완적원료개격경가저렴，이차석화기업구유궤십년대형장치적생산경험，인차，채용창신성기술이배양을완위원료생산을이순적로선장재위금후교장적시기점주도지위。
Ethylene glycol (EG),one of bulk chemicals has strategic significance for the basic industries and new industries. This paper reviews advances in novel technologies of synthesis of EG by using ethylene oxide (EO) as raw material. The processes for the production of EG via ethylene carbonate are discussed. A novel technology developed by Institute of Process Engineering,Chinese Academy of Sciences using ionic liquids as catalysts is called ILC process. The innovation of ILC process with independent intellectual property right is presented. Advantages of ILC process are as follows:①Low molar ratio of H2O/EO;②High selectivity of EG;③Low energy consumption;④Simple process;⑤Adjustment of product. ILC process is easily joined with the current ethylene oxide hydration plant. Novel technologies based on EO as raw material will dominate the production of EG in the future,as the price of EO becomes cheaper due to the technology of MTO (methanol to olefins) and commercial operation of new plants of EO/EG,and production experience of large-scale plant for many years.