Study on Treatment and Resource Utilization of High Salt Water in Methanol-to-Olefin Project
The high salt water desalination crystallization unit of a methanol-to-olefin plant was studied.The plant crystallizes and purifies all the high salt water generated in the production process through the pretreatment unit,sodium chloride crystallization unit,sodium sulfate crystallization unit and miscellaneous salt evaporation crystallization unit.The crystallization products of sodium chloride and sodium sulfate meet the industrial dry salt level 1 standard,and the output water reaches the recycling standard,effectively treating high salt water,realizing the recycling and reuse of high salt water,achieving the purpose of reducing costs and increasing efficiency,meeting the national environmental protection requirements,and having guiding significance for the construction,reconstruction and expansion of high salt water treatment in coal chemical plants,especially for methanol-to-olefin projects.
Methanol to olefinHigh salt waterSalt crystallizationEnvironment protection
万方数据
维普
