In the 2015 to 2017 year, it is the blowout period of the development of China's coal-to-ethylene glycol industry, and it is estimated that the production capacity of ethylene glycol industry in China will exceed 20% by 2020. In order to realize the production cost control of coal-to-ethylene glycol, Shouyang Chemical Industry Corporation Ltd. of Yangquan Coal Group ( Shouyang chemical industry ) has adopted cost control and technological transformation ( such as making full use of surplus heat and reducing water loss ) and continuous operation management measures. The production practice shows that the stable operation of the system is the basis for the cost control of coal-to-ethylene glycol, and the cost control and technological transformation can effectively reduce the consumption of ethylene glycol, including water, electricity and coal etc. , so as to control the production cost of coal-to-ethylene glycol.