Enriching blast furnace gas by removing carbon dioxide |
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| Authors: | Chongmin Zhang Zhimin Sun Shuwen Chen Baohai Wang |
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| Institution: | 1. Key Lab of Chemical Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China;2. Anshan Iron and Steel Corp. (AnSteel), Anshan 114000, China;1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;2. Qingdao Special Steel Company Limited Shandong, Qingdao 266409, Shandong, China;1. VTT Technical Research Centre of Finland, Biologinkuja 5, 02044 Espoo, Finland;2. Ruukki metals Oy, Rautaruukintie 155, 92101 Raahe, Finland;1. Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, PR China;2. Training Base of State Key Laboratory of Coal Science and Technology Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan 030024, PR China;3. Environmental Engineering Department, Shanxi University, Taiyuan 030013, PR China;4. Xi’An University of Science and Technology, Xi’An 710054, PR China;1. Department of Energy and Chemical Engineering, Incheon National University, 119, Incheon, 22012, Republic Of Korea;2. C1 Gas Separation and Conversion Research Center, Carbon Resources Institute, Korea Research Institute of Chemical Technology, Daejeon, 34114, Republic Of Korea;1. Department of Chemical Engineering, POSTECH, Pohang 790-784, South Korea;2. Graduate School of Engineering Mastership, POSTECH, Pohang 790-784, South Korea;3. Research Institute of Industrial Science & Technology(RIST), Pohang 790-600, South Korea;4. School of Chemical Engineering, Chonbuk National University, Jeon-ju 561-756, South Korea |
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| Abstract: | Blast furnace gas (BF gas) produced in the iron making process is an essential energy resource for a steel making work. As compared with coke oven gas, the caloric value of BF gas is too low to be used alone as fuel in hot stove because of its high concentrations of carbon dioxide and nitrogen. If the carbon dioxide in BF gas could be captured efficiently, it would meet the increasing need of high caloric BF gas, and develop methods to reusing and/or recycling the separated carbon dioxide further. Focused on this, investigations were done with simple evaluation on possible methods of removing carbon dioxide from BF gas and basic experiments on carbon dioxide capture by chemical absorption. The experimental results showed that in 100 minutes, the maximum absorbed doses of carbon dioxide reached 20 g/100 g with ionic liquid as absorbent. |
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| Keywords: | carbon dioxide capture BF gas absorption PSA ionic liquid |
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