Abstract: Using glycerol as extractant,absolute ethanol is prepared by extracting water and ethanol solution through common extractive rectification process and double-effect extractive rectification process,respectively.Both processes can give an ethanol solution with a mass fraction of 99.99%,and the recovery rates of the extractant are high.By comparing the parameters of these two processes,it is found that the double-effect extractive rectification process exhibits more energy-efficient than the common extractive distillation process,which can save 14.91% of energy consumption.
周俊伟, 张雷, 郭林樵. 双效萃取精馏工艺制备无水乙醇的模拟与优化[J]. 现代化工, 2020, 40(7): 221-225.
ZHOU Jun-wei, ZHANG Lei, GUO Lin-qiao. Simulation and optimization of double-effect extractive distillation process for preparation of absolute ethanol. Modern Chemical Industry, 2020, 40(7): 221-225.
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