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An internal thermal integration arrangement for multicomponent batch rectifier: 1. Feasibility and analysis

机译:用于多组分间歇式整流器的内部热集成装置:1.可行性和分析

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摘要

Distillation has emerged as a potential candidate for thermal integration to improve the energy efficiency performance. In this contribution, a novel heat integrated distillation column (HIDiC) is proposed for batch rectifiers. Dividing the rectification tower into two sections, an internal thermal integration arrangement for the HIDiC column configuration is devised by installing a compressor and a throttling valve for pressure adjustment, and by designing a couple of internal heat exchangers (HEs) to promote the heat transfer between the trays of two divided rectifiers. Unlike the continuous HIDiC, the batch column is an unsteady state process that gives rise to a challenging problem in design and operation. Aiming to operate the batch HIDiC smoothly, a mechanism for heat supply management is proposed. This, in turn, leads to run the thermally coupled column at the same dynamical response with the conventional standalone column that is a prerequisite for a fair comparison between them in terms of energy efficiency, environmental and economic performance. Finally, the techno-economic feasibility of the proposed batch HIDiC rectifier is explored by simulating a multicomponent system. (C) 2016 Elsevier Ltd. All rights reserved.
机译:蒸馏已成为热集成以提高能效性能的潜在候选方法。在此贡献中,提出了一种用于间歇精馏器的新型热集成蒸馏塔(HIDiC)。将精馏塔分为两部分,针对HIDiC色谱柱配置的内部热集成装置是通过安装压缩机和节流阀以进行压力调节而设计的,并且设计了两个内部热交换器(HE)来促进之间的传热。两个分开的整流器的托盘。与连续HIDiC不同,批处理塔是一个非稳态过程,在设计和操作中引起了难题。为了使批量HIDIC平稳运行,提出了一种供热管理机制。反过来,这导致热耦合色谱柱与常规独立色谱柱以相同的动力学响应运行,这是在能源效率,环境和经济性能方面进行公平比较的前提。最后,通过模拟多组件系统,探索了所提出的间歇式HIDiC整流器的技术经济可行性。 (C)2016 Elsevier Ltd.保留所有权利。

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