The effects of the feed composition and the feed temperature on the energy-saving efficiency of the backward-feed two-effect distillation are researched in ethanol-water system by process simulation.

以乙醇-水为物系，通过模拟计算，研究进料组成和进料温度对三种逆流双效精馏节能效果的影响。

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Because of the high energy consumption for recovery of DMF, Multi-effect distillation processes including two-tower, three - tower and four-tower were proposed.

针对传统的DMF回收工艺的高能耗，本文提出多效精馏回收d MF的双塔、三塔和四塔工艺流程。

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The effect of two-phase flow on fouling control in the concentration of extracts of Chinese traditional medicine (TCM) by direct contact membrane distillation (DCMD) has been investigated.

采用膜蒸馏技术浓缩中药提取液，在进料侧间歇鼓泡产生两相流。

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