The implementation of inter-plant heat integration among multiple plants. Part I: A novel screening algorithm

Runrun Song, Qikui Tang, Yufei Wang, Xiao Feng and Mahmoud M. El-Halwagi

Energy, 2017, vol. 140, issue P1, 1018-1029

Abstract: There is a growing interest in developing Inter-Plant Heat Integration (IPHI) methods for reducing energy consumptions and emissions beyond that of independent plants. However, practical IPHI problems present complexities as boundaries for simultaneous intra- and inter-plant heat integration are considered. Pinch Analysis (PA) can mitigate these complexities by elucidating design insights before developing more detailed inter-plant Heat Exchanger Networks (HENs). In this paper, a novel screening algorithm based on PA and the theoretical maximum inter-plant heat recovery potential Qrecmax is proposed for practical IPHI problems. By using this screening algorithm, a large-scale IPHI problem including multiple plants is divided into several smaller sections with each section including two or three plants. Utilizing this algorithm allows for easier calculation and improved total heat recovery potentials approaching to Qrecmax. The final inter-plant HEN configuration(s) for the segregated IPHI scheme(s) are easily developed separately using PA or Mathematical Programming (MP). Before these two steps, the selection of participating streams for IPHI from individual plants is also recommended. Finally, a mathematical model is used to determine the inter-plant HEN configuration(s) in the companion paper of this study.

Keywords: Interplant; Process integration; Pinch; Heat recovery; Multiple plants (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:140:y:2017:i:p1:p:1018-1029

DOI: 10.1016/j.energy.2017.09.039

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