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Title: Optimization of multi-refinery hydrogen networks
Authors: Jagannath, A.
Elkamel, A.
Karimi, I.A. 
Keywords: Global optimization
Hydrogen networks
Issue Date: 2012
Citation: Jagannath, A.,Elkamel, A.,Karimi, I.A. (2012). Optimization of multi-refinery hydrogen networks. Computer Aided Chemical Engineering 31 : 1331-1335. ScholarBank@NUS Repository.
Abstract: Hydrogen is an important feedstock and fuel in the refining and petrochemical industries. In this paper, we address the optimal synthesis of inter-plant hydrogen networks by modifying the superstructure-based one-plant model of Elkamel et al. (2011). The bilinear terms involved in the component balance equations of this model give rise to a nonconvex mixed integer nonlinear program (MINLP). A specialized outer-approximation algorithm is developed for solving this optimal synthesis problem to global optimality, where the lower bound on the global optimum is obtained by means of piecewise under-and-over estimators for the bilinear terms. We propose and compare several integration schemes to demonstrate significant cost savings. © 2012 Elsevier B.V.
Source Title: Computer Aided Chemical Engineering
ISSN: 15707946
DOI: 10.1016/B978-0-444-59506-5.50097-3
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