Fuel Gas Network Synthesis Using Block Superstructure
Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
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Processes 2018, 6(3), 23; https://doi.org/10.3390/pr6030023
Received: 2 February 2018 / Revised: 24 February 2018 / Accepted: 26 February 2018 / Published: 1 March 2018
(This article belongs to the Special Issue Feature Papers for the Fifth Year Anniversary of the Founding of Processes)
Fuel gas network (FGN) synthesis is a systematic method for reducing fresh fuel consumption in a chemical plant. In this work, we address FGN synthesis problems using a block superstructure representation that was originally proposed for process design and intensification. The blocks interact with each other through direct flows that connect a block with its adjacent blocks and through jump flows that connect a block with all nonadjacent blocks. The blocks with external feed streams are viewed as fuel sources and the blocks with product streams are regarded as fuel sinks. An additional layer of blocks are added as pools when there exists intermediate operations among source and sink blocks. These blocks can be arranged in a J two-dimensional grid with for problems without pools, or for problems with pools. J is determined by the maximum number of pools/sinks. With this representation, we formulate FGN synthesis problem as a mixed-integer nonlinear (MINLP) formulation to optimally design a fuel gas network with minimal total annual cost. We revisit a literature case study on LNG plants to demonstrate the capability of the proposed approach.
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Keywords:
process integration; fuel gas network synthesis; block superstructure; optimization; MINLP
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MDPI and ACS Style
Li, J.; Demirel, S.E.; Hasan, M.M.F. Fuel Gas Network Synthesis Using Block Superstructure. Processes 2018, 6, 23. https://doi.org/10.3390/pr6030023
AMA Style
Li J, Demirel SE, Hasan MMF. Fuel Gas Network Synthesis Using Block Superstructure. Processes. 2018; 6(3):23. https://doi.org/10.3390/pr6030023
Chicago/Turabian StyleLi, Jianping; Demirel, Salih E.; Hasan, M. M.F. 2018. "Fuel Gas Network Synthesis Using Block Superstructure" Processes 6, no. 3: 23. https://doi.org/10.3390/pr6030023
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