title: Comparison of CO2 emission between COREX and blast furnace iron-making system.
abstract: Steel works faced increasing demand to minimize the emission of GHGs. The CO2 emissions of COREX and blast furnace iron-making system were compared. It is point out that COREX contribute little to CO2 emission reduction. Comparing to conventional blast furnace iron-making system, direct CO2 emissions of COREX is higher. Considering the credits of export gases for power generation, the total CO2 emission of COREX have advantages only when the COREX is joined with high-efficiency generating units which efficiency is greater than 45% and CO2 emission factor of the grid is higher than 0.9 kgCO2/kWh.
authors.affiliation: Hebei Polytechnic University, Tangshan 063009, China. hiq-73@163.com
authors.forename: Changqing
authors.initials: C
authors.lastname: Hu
authors.affiliation: Hebei Polytechnic University, Tangshan 063009, China.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Han
authors.affiliation: Tsinghua University, Beijing 100084, China.
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Li
authors.affiliation: State Key Laboratory of Advanced Steel Process and Products, Beijing 100081, China.
authors.forename: Chunxia
authors.initials: C
authors.lastname: Zhang
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002245:Carbon Dioxide / Q000032:analysis*; D007501:Iron / Q000737:chemistry*; D008669:Metallurgy / Q000379:methods*
chemical_list: D000393:Air Pollutants; D002245:Carbon Dioxide; D007501:Iron