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Analysis of oxygen enrichment and its potential influences on the energy system in an integrated steel plant using a new solution space based optimization approach
Center for Process Integration in Steelmaking, Swerea MEFOS, Luleå.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
Swerea MEFOS AB.
2011 (English)In: PRES'11: 14th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, AIDIC Servizi S.r.l. , 2011, Vol. 25, 87-92 p.Conference paper (Refereed)
Abstract [en]

With oxygen enrichment in hot stoves the high calorific coke oven gas can be saved due to the possibility of using lower calorific gases which enables replacement of other imported fuels such as oil or LPG. The application of increased oxygen use in hot stoves or increased O2 in blast, will also potentially lead to lower coke rate. Central to the performance in system optimisation is the ability to analyse and properly describe the system variations. The demand for coke oven gas is depending on both internal operation logistics but it also has outdoor temperature dependence through a heat and power plant producing district heat to the community. An analysis of the influence of increased oxygen enrichment on the entire energy system has been carried out by use of an optimization model. A method of achieving a high time resolution in MILP optimisation is applied in the analysis. Different strategies have been suggested for minimum energy consumption at the studied steel plant and the nearby CHP plant.

Place, publisher, year, edition, pages
AIDIC Servizi S.r.l. , 2011. Vol. 25, 87-92 p.
Chemical Engineering Transactions, ISSN 1974-9791 ; 25
Research subject
Energy Engineering
URN: urn:nbn:se:ltu:diva-37220DOI: 10.3303/CET1125015Local ID: b2d7c376-6d35-4d58-8518-17cb6b418d45ISBN: 978-88-95608-16-7 (print)OAI: diva2:1010718
Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction : 08/05/2011 - 11/05/2011
Validerad; 2011; 20110603 (ysko)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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Sandberg, JohanLarsson, Mikael
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