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Techno-economic analysis of low temperature waste heat recovery and utilization at an integrated steel plant in Sweden
RISE, Swerea, MEFOS.
RISE, Swerea, MEFOS.
SSAB EMEA, Sweden.
2014 (English)In: Chemical Engineering Transactions, ISSN 1974-9791, E-ISSN 2283-9216, Vol. 39, no Special Issue, p. 67-72Article in journal (Refereed) Published
Abstract [en]

Energy consumption and CO2 emissions is an ever-present issue for energy intensive industries, such as the steel industry. The work for reducing the environmental impact is a strong interest among the governments in Europe and the 20-20-20 targets, decided by the EU, set the targets for the year 2020 to increase energy efficiency by 20 %, reduce greenhouse gas emissions by 20 %, and increase the use of renewable energy to 20 %. It is therefore important for the steel industry, and other industries, to continuously be working on development of concepts for decreasing the environmental impact, which are also financially viable. This paper presents the work that has been conducted in order to evaluate the potential benefits regarding energy- & cost saving and CO2 mitigation, when recovering and utilizing low temperature waste heat at an integrated steel plant in Sweden, SSAB EMEA Lulea. In order to achieve a holistic overview of the plant a process integration approach is applied to evaluate the effects that occur when applying technologies for waste heat recovery. The results indicate a potential for energy saving of 1.9 %, and a corresponding CO2 mitigation potential of 1.5 %. The calculated payback time for the applied waste heat recovery concepts, which is based on specific methods and economic assumptions, range between 1.5 - 7.0 y. 

Place, publisher, year, edition, pages
Italian Association of Chemical Engineering - AIDIC , 2014. Vol. 39, no Special Issue, p. 67-72
Keywords [en]
Carbon dioxide, Economic analysis, Energy conservation, Energy efficiency, Energy utilization, Environmental impact, Gas emissions, Greenhouse gases, Pollution, Steel metallurgy, Steelmaking, Temperature, Waste heat, CO2 emissions, CO2 mitigation, Energy intensive industries, Low-temperature waste heats, Potential benefits, Process integration, Techno-Economic analysis, Use of renewable energies, Waste heat utilization
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-41074DOI: 10.3303/CET1439012Scopus ID: 2-s2.0-84908117133OAI: oai:DiVA.org:ri-41074DiVA, id: diva2:1377216
Conference
17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2014; Prague; Czech Republic;
Available from: 2019-12-11 Created: 2019-12-11 Last updated: 2019-12-11Bibliographically approved

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