Next Article in Journal
Avrami Kinetic-Based Constitutive Relationship for Armco-Type Pure Iron in Hot Deformation
Next Article in Special Issue
Modification of Non-Metallic Inclusions in Oil-Pipeline Steels by Ca-Treatment
Previous Article in Journal
High-Pressure Oxidative Leaching and Iodide Leaching Followed by Selective Precipitation for Recovery of Base and Precious Metals from Waste Printed Circuit Boards Ash
Previous Article in Special Issue
Model Development for Refining Rates in Oxygen Steelmaking: Impact and Slag-Metal Bulk Zones
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Metals 2019, 9(3), 364; https://doi.org/10.3390/met9030364

Comparison of Energy Consumption and CO2 Emission for Three Steel Production Routes—Integrated Steel Plant Equipped with Blast Furnace, Oxygen Blast Furnace or COREX

1
School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
2
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Received: 31 December 2018 / Revised: 27 February 2019 / Accepted: 20 March 2019 / Published: 21 March 2019
(This article belongs to the Special Issue Ironmaking and Steelmaking)
  |  
PDF [3761 KB, uploaded 21 March 2019]
  |  

Abstract

High CO2 emissions and energy consumption have greatly restricted the development of China’s iron and steel industry. Two alternative ironmaking processes, top gas recycling-oxygen blast furnace (TGR-OBF) and COREX®, can reduce CO2 emissions and coking coal consumption in the steel industry when compared with a conventional blast furnace (BF). To obtain parameters on the material flow of these processes, two static process models for TGR-OBF and COREX were established. Combining the operating data from the Jingtang steel plant with established static process models, this research presents a detailed analysis of the material flows, metallurgical gas generation and consumption, electricity consumption and generation, comprehensive energy consumption, and CO2 emissions of three integrated steel plants (ISP) equipped with the BF, TGR-OBF, and COREX, respectively. The results indicated that the energy consumption of an ISP with the TGR-OBF was 16% and 16.5% lower than that of a conventional ISP and an ISP with the COREX. Compared with a conventional ISP, the coking coal consumption in an ISP with the TGR-OBF and an ISP with the COREX were reduced by 39.7% and 100% respectively. With the International Energy Agency factor, the ISP with the TGR-OBF had the lowest net CO2 emissions, which were 10.8% and 35.0% lower than that of a conventional ISP and an ISP with the COREX. With the China Grid factor, the conventional ISP had the lowest net CO2 emissions—2.8% and 24.1% lower than that of an ISP with the TGR-OBF and an ISP with the COREX, respectively. View Full-Text
Keywords: oxygen blast furnace; COREX; static process model; integrated steel plant; material flow; energy consumption; CO2 emissions oxygen blast furnace; COREX; static process model; integrated steel plant; material flow; energy consumption; CO2 emissions
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Song, J.; Jiang, Z.; Bao, C.; Xu, A. Comparison of Energy Consumption and CO2 Emission for Three Steel Production Routes—Integrated Steel Plant Equipped with Blast Furnace, Oxygen Blast Furnace or COREX. Metals 2019, 9, 364.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top