Present Situation and Prospect of EAF Gas Waste Heat Utilization Technology
With the increase of hot metal ratio in electric arc furnace (EAF) steelmaking process, physical sensible heat and chemical latent heat of gas increased significantly. As EAF raw material condition is similar to basic oxygen furnace (BOF), and the condition of BOF gas waste heat utilization technolo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2018-03-01
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| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2016-0218 |
| _version_ | 1818580851091308544 |
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| author | Yang Ling-zhi Jiang Tao Li Guang-hui Guo Yu-feng Chen Feng |
| author_facet | Yang Ling-zhi Jiang Tao Li Guang-hui Guo Yu-feng Chen Feng |
| author_sort | Yang Ling-zhi |
| collection | DOAJ |
| description | With the increase of hot metal ratio in electric arc furnace (EAF) steelmaking process, physical sensible heat and chemical latent heat of gas increased significantly. As EAF raw material condition is similar to basic oxygen furnace (BOF), and the condition of BOF gas waste heat utilization technology is mature, waste heat utilization technology in EAF steelmaking will be getting more and more attention. Scrap preheating and steam production as mature technology is the main way of EAF gas waste heat utilization. Power generation converted high temperature steam to electricity will further improve the EAF gas utilization value. The previous ways are to recycle physical sensible heat of EAF gas. To use chemical latent heat of gas, the secondary combustion technology is usually adopted to make CO fully burn into CO2. Coal gas production can fully recycle the chemical latent heat of gas theoretically, which is higher efficiency than other ways. Coal gas production needs a stable steelmaking process to stabilize high temperature gas. And the way need to develop EAF sealing technology, oxygen removal technology and gas purification technology, to make gas content meet the requirements of coal gas production in EAF steelmaking process. |
| first_indexed | 2024-12-16T07:24:09Z |
| format | Article |
| id | doaj.art-b5ac10a6a1f14fdf8ad801457dad7989 |
| institution | Directory Open Access Journal |
| issn | 0334-6455 2191-0324 |
| language | English |
| last_indexed | 2024-12-16T07:24:09Z |
| publishDate | 2018-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-b5ac10a6a1f14fdf8ad801457dad79892022-12-21T22:39:34ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242018-03-0137435736310.1515/htmp-2016-0218Present Situation and Prospect of EAF Gas Waste Heat Utilization TechnologyYang Ling-zhi0Jiang Tao1Li Guang-hui2Guo Yu-feng3Chen Feng4School of Minerals Processing and Bioengineering, Central South University, Changsha410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha410083, ChinaSchool of Minerals Processing and Bioengineering, Central South University, Changsha410083, ChinaWith the increase of hot metal ratio in electric arc furnace (EAF) steelmaking process, physical sensible heat and chemical latent heat of gas increased significantly. As EAF raw material condition is similar to basic oxygen furnace (BOF), and the condition of BOF gas waste heat utilization technology is mature, waste heat utilization technology in EAF steelmaking will be getting more and more attention. Scrap preheating and steam production as mature technology is the main way of EAF gas waste heat utilization. Power generation converted high temperature steam to electricity will further improve the EAF gas utilization value. The previous ways are to recycle physical sensible heat of EAF gas. To use chemical latent heat of gas, the secondary combustion technology is usually adopted to make CO fully burn into CO2. Coal gas production can fully recycle the chemical latent heat of gas theoretically, which is higher efficiency than other ways. Coal gas production needs a stable steelmaking process to stabilize high temperature gas. And the way need to develop EAF sealing technology, oxygen removal technology and gas purification technology, to make gas content meet the requirements of coal gas production in EAF steelmaking process.https://doi.org/10.1515/htmp-2016-0218electric arc furnacehigh temperature gaswaste heat utilizationcarbon monoxide |
| spellingShingle | Yang Ling-zhi Jiang Tao Li Guang-hui Guo Yu-feng Chen Feng Present Situation and Prospect of EAF Gas Waste Heat Utilization Technology High Temperature Materials and Processes electric arc furnace high temperature gas waste heat utilization carbon monoxide |
| title | Present Situation and Prospect of EAF Gas Waste Heat Utilization Technology |
| title_full | Present Situation and Prospect of EAF Gas Waste Heat Utilization Technology |
| title_fullStr | Present Situation and Prospect of EAF Gas Waste Heat Utilization Technology |
| title_full_unstemmed | Present Situation and Prospect of EAF Gas Waste Heat Utilization Technology |
| title_short | Present Situation and Prospect of EAF Gas Waste Heat Utilization Technology |
| title_sort | present situation and prospect of eaf gas waste heat utilization technology |
| topic | electric arc furnace high temperature gas waste heat utilization carbon monoxide |
| url | https://doi.org/10.1515/htmp-2016-0218 |
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