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通过建立甲醇精馏系统中预塔塔顶采出物冷凝过程的气液平衡计算模型,对预塔采出物中可凝气组分的泡点温度进行计算与分析,认为精甲醇KMnO4值与预塔放空无关。并提出了解决预塔放空偏大和保证精甲醇KMnO4值合格的方法。
By establishing a gas-liquid equilibrium calculation model for the condensation process of pre-tower overhead in a methanol distillation system, the bubble point temperature of the condensable components in the pre-tower recovery product is calculated and analyzed. The results show that the KMnO4 value Pre-tower vent has nothing to do. And put forward to solve pre-tower empty and ensure the quality of refined methanol KMnO4 qualified method.