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Title: An Optimization-Based Approach for Simultaneous Chemical Process and Heat Exchanger Network Synthesis

We propose a mixed-integer nonlinear programming (MINLP) model for simultaneous chemical process and heat exchanger network synthesis. The model allows process stream inlet/outlet temperatures and flow rates to vary and can be extended to handle unclassified streams, thereby facilitating integration with a process synthesis model. The proposed model is based on a generalized transshipment approach in which the heat cascade is built upon a “dynamic” temperature grid. Both hot and cold streams can cascade heat so that exchanger inlet and outlet temperature, heat duty, and area can be calculated at each temperature interval. Here, we develop mixed-integer constraints to model the number of heat exchangers in the network. Finally, we present several solution strategies tailored to improve the computation performance of the proposed models.
Authors:
ORCiD logo [1] ; ORCiD logo [1]
  1. Univ. of Wisconsin, Madison, WI (United States). Dept. of Chemical and Biological Engineering; Univ. of Wisconsin, Madison, WI (United States). Great Lakes Bioenergy Research Center (GLBRC)
Publication Date:
Grant/Contract Number:
SC0018409
Type:
Accepted Manuscript
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 57; Journal Issue: 18; Journal ID: ISSN 0888-5885
Publisher:
American Chemical Society (ACS)
Research Org:
Univ. of Wisconsin, Madison, WI (United States). Great Lakes Bioenergy Research Center (GLBRC)
Sponsoring Org:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1459437

Kong, Lingxun, and Maravelias, Christos T. An Optimization-Based Approach for Simultaneous Chemical Process and Heat Exchanger Network Synthesis. United States: N. p., Web. doi:10.1021/acs.iecr.8b00065.
Kong, Lingxun, & Maravelias, Christos T. An Optimization-Based Approach for Simultaneous Chemical Process and Heat Exchanger Network Synthesis. United States. doi:10.1021/acs.iecr.8b00065.
Kong, Lingxun, and Maravelias, Christos T. 2018. "An Optimization-Based Approach for Simultaneous Chemical Process and Heat Exchanger Network Synthesis". United States. doi:10.1021/acs.iecr.8b00065.
@article{osti_1459437,
title = {An Optimization-Based Approach for Simultaneous Chemical Process and Heat Exchanger Network Synthesis},
author = {Kong, Lingxun and Maravelias, Christos T.},
abstractNote = {We propose a mixed-integer nonlinear programming (MINLP) model for simultaneous chemical process and heat exchanger network synthesis. The model allows process stream inlet/outlet temperatures and flow rates to vary and can be extended to handle unclassified streams, thereby facilitating integration with a process synthesis model. The proposed model is based on a generalized transshipment approach in which the heat cascade is built upon a “dynamic” temperature grid. Both hot and cold streams can cascade heat so that exchanger inlet and outlet temperature, heat duty, and area can be calculated at each temperature interval. Here, we develop mixed-integer constraints to model the number of heat exchangers in the network. Finally, we present several solution strategies tailored to improve the computation performance of the proposed models.},
doi = {10.1021/acs.iecr.8b00065},
journal = {Industrial and Engineering Chemistry Research},
number = 18,
volume = 57,
place = {United States},
year = {2018},
month = {4}
}