Sulfur Flow Analysis for New Generation Steel Manufacturing Process

• Published in: Journal of iron and steel research, international Vol. 15; no. 4; pp. 12 - 15
• Main Authors: HU, Chang-Qing, ZHANG, Chun-Xia, HAN, Xiao-Wei, YIN, Rui-Yu
• Format: Journal Article
• Language: English
• Published: Singapore Elsevier Ltd 2008; Springer Singapore; College of Metallurgy and Energy,Hebei Polytechnic University,Tangshan 063009,Hebei,China%State Key Laboratory of Advanced Steel Process and Products,Central Iron and Steel Research Institute,Beijing 100081,China
• Subjects: Applied and Technical Physics; Engineering; Machines; Manufacturing; material flow analysis; Materials Engineering; Materials Science; Metallic Materials; Physical Chemistry; Processes; SO 2 emission; steel industry; sulfur flow analysis; sustainable development; 制造工程; 物质分析; 钢铁工业; sustainable development; sulfur flow analysis; material flow analysis; steel industry; SO 2 emission; emission; SO; SO2 emission
• ISSN: 1006-706X; 2210-3988
• DOI: 10.1016/S1006-706X(08)60136-3

Sulfur flow for new generation steel manufacturing process is analyzed by the method of material flow analysis, and measures for SO2 emission reduction are put forward as assessment and target intervention of the results. The results of sulfur flow analysis indicate that 90 % of sulfur comes from fuels. Sulfur finally discharges from the steel manufacturing route in various steps, and the main point is BF and BOF slag desulfurization. In sintering process, the sulfur is removed by gasification, and sintering process is the main source of SO2 emission. The sulfur content of coke oven gas （COG） is an important factor affecting SO2 emission. Therefore, SO2 emission reduction should be started from the optimization and integration of steel manufacturing route, sulfur burden should be reduced through energy saving and consumption reduction, and the sulfur content of fuel should be controlled. At the same time, BF and BOF slag desulfurization should be optimized further and coke oven gas and sintering exhausted gas desulfurization should be adopted for SO2 emission reduction and reuse of resource, to achieve harmonic coordination of economic, social, and environmental effects for sustainable development.