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Analysis of heat integration, intermediate reboiler and vapor recompression for the extractive distillation of ternary mixture with two binary azeotropes

机译：两种二元共沸萃取蒸馏三元混合物萃取蒸馏的热 - 整合，中间再沸器和蒸汽再压缩分析

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Few works focus on the process intensification of extractive distillation (ED) for the separation of ternary mixture with two binary azeotropes due to its complexity. In this work, double-effect heat integration (DEHI), intermediate reboiler (IR) and vapor recompression (VRC) heat pump ED intensification processes for separating tetrahydrofuran-methanol-water mixture are proposed and optimized via multi-objective genetic algorithm to reduce the CO2 emissions and the total annual cost. Furthermore, each of the ED intensification process is combined with the full use of the sensible heat in entrainer recycling stream. The results showed that all the proposed ED intensification processes are energy-saving than the conventional one. The combined DEHI process is the most economic since its TAC (3 years payback period) is reduced by 25.1% while the combined VRC is the most eco-friendly as its CO2 emissions are saved by 30.4% compared with the conventional ED process.
机译：很少有效侧重于引起三元混合物与两个二元共沸物分离的萃取蒸馏（Ed）的过程强化。 在这项工作中，通过多目标遗传算法提出并优化了用于分离四氢呋喃 - 甲醇 - 水混合物的加强化方法，通过多目标遗传算法优化分离四氢呋喃 - 甲醇 - 水混合物的强化方法，通过多目标遗传算法优化 二氧化碳排放量和年度成本总额。 此外，每个ED强化过程与夹带循环物流中的充分利用可显着的热量结合。 结果表明，所有提议的ED强化过程都比常规的强化过程是节能。 由于其TAC（3年的投资回收期）减少了25.1％，因此，由于其二氧化碳排放量为30.4％，因此其二氧化碳排放量与常规ED过程相比，其CO 2排放量最为环保，因此其综合的DEHI工艺是最经济的。

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