LAPSE:2023.24403
Published Article
LAPSE:2023.24403
A Mixed Integer Linear Programming Model for the Optimization of Steel Waste Gases in Cogeneration: A Combined Coke Oven and Converter Gas Case Study
Sergio García García, Vicente Rodríguez Montequín, Henar Morán Palacios, Adriano Mones Bayo
March 28, 2023
Off-gas is one of the by-products of the steelmaking process. Its potential energy can be transformed into heat and electricity by means of cogeneration. A case study using a coke oven and Linz−Donawitz converter gas is presented. This work addresses the gas allocation problem for a cogeneration system producing steam and electricity. In the studied facility, located in northern Spain, the annual production of the plant requires 95,000 MWh of electrical energy and 525,000 MWh of thermal energy. The installed electrical and thermal power is 20.4 MW and 81 MW, respectively. A mixed integer linear programming model is built to optimize gas allocation, thus maximizing its benefits. This model is applied to a 24-h scenario with real data from the plant, where gas allocation decision-making was performed by the plant operators. Application of the model generated profit in a scenario where there were losses, increasing benefits by 16.9%. A sensitivity analysis is also performed. The proposed model is useful not only from the perspective of daily plant operation but also as a tool to simulate different design scenarios, such as the capacity of gasholders.
Keywords
allocation, iron and steel industry, MILP modeling, off-gas, Optimization, Scheduling
Suggested Citation
García García S, Rodríguez Montequín V, Morán Palacios H, Mones Bayo A. A Mixed Integer Linear Programming Model for the Optimization of Steel Waste Gases in Cogeneration: A Combined Coke Oven and Converter Gas Case Study. (2023). LAPSE:2023.24403
Author Affiliations
García García S: EDP, Energias de Portugal, Plaza del Fresno, 2, 33007 Oviedo, Spain
Rodríguez Montequín V: Department of Mining Exploitation and Prospecting, University of Oviedo, C/Independencia 3, 33004 Oviedo, Spain [ORCID]
Morán Palacios H: Department of Mining Exploitation and Prospecting, University of Oviedo, C/Independencia 3, 33004 Oviedo, Spain
Mones Bayo A: Department of Mining Exploitation and Prospecting, University of Oviedo, C/Independencia 3, 33004 Oviedo, Spain
Journal Name
Energies
Volume
13
Issue
15
Article Number
E3781
Year
2020
Publication Date
2020-07-23
ISSN
1996-1073
Version Comments
Original Submission
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PII: en13153781, Publication Type: Journal Article
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LAPSE:2023.24403
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https://doi.org/10.3390/en13153781
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