Abstract: The paper introduced two processes of ethylene glycol produced from coal, that is Methanol to Olefin (MTO) and Dimethyl Oxalate process, and analyzed their advantages and disadvantages in terms of reaction principle, equipment investment and product quality, etc. The author also introduced the application of coal-based ethylene glycol to PET fiber production, including the impact of coal-based ethylene glycol on PET’s appearance and spinning performance. Based on the above analysis, some methods on how to apply coal-based ethylene glycol to PET fiber production were referred.

Key words: ethylene glycol produced from coal; process; application; PET fiber