带中间再沸器的大温差体系热泵精馏工艺

发布时间：2018-05-14 23:15

本文选题：大温差体系 + 热泵精馏　；参考：《化学工程》2017年01期

【摘要】：基于大温差体系的分离特点,提出了带中间再沸器的MVR热泵节能精馏工艺。使用Aspen Plus流程模拟软件,采用软件中Radfrac模块模拟精馏塔,对该体系的常规精馏、常规MVR热泵精馏、带中间再沸器的MVR热泵精馏及带中间再沸器的完全MVR热泵精馏等4种工艺进行优化模拟。以年总费用(TAC)最低为目标函数,得到了各精馏工艺相关的工艺参数和设备参数。研究结果表明:带中间再沸器的MVR热泵精馏工艺要优于常规MVR热泵精馏工艺,其平均能耗减少7.7%,平均TAC减少8.3%;带中间再沸器的完全MVR热泵精馏工艺要比带中间再沸器的MVR热泵精馏工艺更具优势,其能耗减少9.4%,TAC减少18.7%。
[Abstract]:Based on the separation characteristics of large temperature difference system, an energy-saving distillation process of MVR heat pump with intermediate reboiler is proposed. Using Aspen Plus flow simulation software and Radfrac module in the software to simulate the distillation column, the conventional distillation and conventional MVR heat pump distillation of the system were carried out. MVR heat pump distillation with intermediate reboiler and complete MVR heat pump distillation with intermediate reboiler were optimized and simulated. With the lowest annual total cost as the objective function, the process parameters and equipment parameters related to each distillation process were obtained. The results show that the MVR heat pump distillation process with intermediate reboiler is superior to the conventional MVR heat pump distillation process. The average energy consumption is reduced by 7.7 and the average TAC by 8.3. The complete MVR heat pump rectification process with intermediate reboiler is superior to the MVR heat pump rectification process with intermediate reboiler, and its energy consumption is reduced by 9.4% and 18.7b.
【作者单位】：常州大学石油化工学院;
【分类号】：TQ028.31

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