Volume 20, Issue 1 (3-2023)                   jor 2023, 20(1): 49-78 | Back to browse issues page

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Nasr-Azadani M, Davoodi S M R, Moeeni S. Evaluation of Using DRI as Blast Furnace Burden Material on Production Profit in Iranian Steel Industry by Development of a Non-Linear Optimizatiom Model. jor 2023; 20 (1) :49-78
URL: http://jamlu.liau.ac.ir/article-1-1871-en.html
Evaluation of Using DRI as Blast Furnace Burden Material on Production Profit in Iranian Steel Industry by Development of a Non-Linear Optimizatiom Model
M. Nasr-Azadani , S. M. R Davoodi * , Sh. Moeeni
Department of management, Dehaghan Branch, Islamic Azad University, Dehaghan, Iran.
Abstract:   (523 Views)
Iranian steel producers have been faced the serious challenge of the environmental tough standards to reduce CO2 emmission. In recent years, the leading steel makers have been used DRI as an environmentally friendly ferrous burden material for the blast furnace (BF) to reduce CO2 emmision taxes. Different conditions of Iranian steel makers than their international competitors due to the domestic subsidized iron lump and natural gas availability, cheap DRI production along with technical limitations of DRI charging to BF and the sanction trade obstacles for suppling coal and coke from abroad make this study. In this research a non-linear optimization model has been developed for maximizing production profit in steel industry. In comparison to the past researches the proposed model is able to optimize profit by replacing the BF ferrous burden materials under new constraints. The model is applied to Esco BF No.3. A comparison between the optimization results and the experience-based outcomes shows good compromise between the model prediction and actual operation so a great benefit can be gained using the model to purchase raw materials. Another advantage of this model is prediction of raw materials effects. In this regard, DRI effect on CO2 emission has been studied.
Keywords: Nonlinear Optimization Model, CO2 Emission, DRI, ESCO.
Full-Text [PDF 1203 kb]   (375 Downloads)    
Type of Study: Research | Subject: Special
Received: 2021/01/29 | Accepted: 2021/08/2
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