title: Enriching blast furnace gas by removing carbon dioxide.
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.
authors: Key Lab of Chemical Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China.   zcmin@ustl.edu.cn
authors: Chongmin
authors: C
authors: Zhang
authors: Key Lab of Chemical Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China.
authors: Zhimin
authors: Z
authors: Sun
authors: Key Lab of Chemical Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China.
authors: Shuwen
authors: S
authors: Chen
authors: Anshan Iron and Steel Corp. (AnSteel), Anshan 114000, China.
authors: Baohai
authors: B
authors: Wang
mesh_terms: D065966:Absorption, Physicochemical; D000327:Adsorption; D000588:Amines / Q000737:chemistry; D002245:Carbon Dioxide / Q000302:isolation & purification*; D052578:Ionic Liquids / Q000737:chemistry; D008669:Metallurgy / Q000295:instrumentation*; D011312:Pressure; D013055:Spectrophotometry, Infrared; D014867:Water / Q000737:chemistry
chemical_list: D000588:Amines; D052578:Ionic Liquids; D014867:Water; D002245:Carbon Dioxide
keywords: BF gas; PSA; absorption; carbon dioxide capture; ionic liquid