50万t/a壳牌粉煤气化制甲醇项目之甲醇精馏装置运行总结

Methanol Rectification Unit of Project of Methanol Made by Shell Pulverized Coal Gasification with a Capacity of 500000t/a

简述了50万t/a壳牌粉煤气化制甲醇项目之甲醇精馏装置的工艺流程、技术指标和操作参数;分析了装置试车过程中常压塔出现负压、产品质量不达标的原因;提出了相应的处理措施和优化操作方案;进行了三塔精馏装置的能耗分析,总结了装置稳定运行和节能降耗的操作要点。

Author has briefly described the process flow,technical indexes and operating parameters of the methanol rectification device of project of methanol made from Shell pulverized coal gasification with a capacity of 500000t/a;has analyzed the reason that negative pressure existed in the atmospheric pressure column during commissioning and the product quality can not reach to standard requirement;has presented the appropriate treatment measures and the operating scheme optimized;has also analyzed the energy consume of the rectification device with 3 columns;has summarized the operating gist for stable operation and energy saving and consume reducing in the device.