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Improved Targeting Procedure To Determine the Indirect Interplant Heat Integration with Parallel Connection Pattern among Three Plants
Industrial & Engineering Chemistry Research ( IF 4.2 ) Pub Date : 2018-01-26 00:00:00 , DOI: 10.1021/acs.iecr.7b04327
Runrun Song 1 , Yufei Wang 1 , Marc Panu 2 , Mahmoud M. El-Halwagi 2 , Xiao Feng 3
Affiliation  

The interplant heat integration (IPHI) problem has received growing interest for its potential to reduce energy consumption and emissions beyond heat integration within individual plants. Indirect IPHI using an intermediate energy carrier (intermedium) allows for practical implementation as opposed to direct IPHI, which may consist of multiple piping loops using process streams. Various interplant connection patterns of intermedium loops present differences in interplant heat recovery potential, pipeline costs, and the reliability of IPHI system. This work addresses that the parallel connection pattern for it presents the maximum interplant heat recovery potential and is a flexible pattern. An improved targeting procedure is proposed to determine the parallel connection pattern. This method can determine the real maximum interplant heat recovery potential for indirect IPHI among three plants and simultaneously minimizes the corresponding intermedium flow rates. Two examples from prior literatures, as well as the modified cases, are solved to demonstrate the proposed method. The proposed method can always present multiple feasible solutions for IPHI problems. Compared with the previous results for the certain case, under the same interplant heat recovery potential, a better solution in terms of the overall intermedium flow rate and/or the number of heat exchanger used can be found from all the feasible ones.

中文翻译:

改进的确定目标程序,以确定三座工厂之间具有并行连接方式的间接工厂间热集成

工厂间热集成(IPHI)问题因其潜在的降低能源消耗和排放的潜力而引起了越来越多的关注,这些潜力已超出单个工厂内的热集成。与直接IPHI相比,使用中间能量载体(中间)的间接IPHI允许实际实施,直接IPHI可能包含使用过程流的多个管道回路。中间回路的各种装置间连接方式在装置间热回收潜力,管道成本和IPHI系统的可靠性方面存在差异。这项工作解决了它的并联模式呈现出最大的工厂间热回收潜力,并且是一种灵活的模式。提出了一种改进的瞄准程序来确定并行连接模式。此方法可以确定三个工厂之间间接IPHI的实际最大工厂间热回收潜力,并同时最小化相应的中间介质流速。解决了现有文献中的两个示例以及修改后的案例,以证明所提出的方法。所提出的方法始终可以为IPHI问题提供多种可行的解决方案。与相同情况下的先前结果相比,在相同的装置间热回收潜力下,可以从所有可行的装置中找到总介质间流量和/或使用的热交换器数量方面的更好解决方案。解决了以演示所提出的方法。所提出的方法始终可以为IPHI问题提供多种可行的解决方案。与相同情况下的先前结果相比,在相同的装置间热回收潜力下,可以从所有可行的装置中找到总介质间流量和/或使用的热交换器数量方面的更好解决方案。解决了以演示所提出的方法。所提出的方法始终可以为IPHI问题提供多种可行的解决方案。与相同情况下的先前结果相比,在相同的装置间热回收潜力下,可以从所有可行的装置中找到总介质间流量和/或使用的热交换器数量方面的更好解决方案。
更新日期:2018-01-27
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