Comparison of Energy Consumption and CO2 Emission for Three Steel Production Routes—Integrated Steel Plant Equipped with Blast Furnace, Oxygen Blast Furnace or COREX
| Autor: | Cheng Bao, Zeyi Jiang, Anjun Xu, Jiayuan Song |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:TN1-997
Blast furnace static process model 0211 other engineering and technologies integrated steel plant chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 01 natural sciences Oxygen CO2 emissions Steel mill energy consumption Production (economics) General Materials Science Coal 021108 energy material flow lcsh:Mining engineering. Metallurgy 0105 earth and related environmental sciences Waste management business.industry Metals and Alloys Energy consumption Material flow chemistry COREX Environmental science oxygen blast furnace business Corex |
| Zdroj: | Metals, Vol 9, Iss 3, p 364 (2019) Metals Volume 9 Issue 3 |
| ISSN: | 2075-4701 |
| Popis: | High CO2 emissions and energy consumption have greatly restricted the development of China&rsquo 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&mdash 2.8% and 24.1% lower than that of an ISP with the TGR-OBF and an ISP with the COREX, respectively. |
| Databáze: | OpenAIRE |
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