Determination of carbon dioxide emission factors in typical processes for large iron-steel companies
大型钢铁企业典型工序碳排放系数的确定方法探讨

In order to accurately establish the carbon dioxide emission factors in iron and steel company, the carbon dioxide emissions of the processes are calculated according to the carbon balance method and then the carbon dioxide emission factors are backcalculated based on the definition of the carbon emission factors. Here, three typical processes, i.e., coking, sintering, and iron-smelting, in a large steel company are taken as an example. The results show that, in 2009, the carbon dioxide emission factors of the coking, sintering, and iron-smelting in this large steel company are 0.518, 0.210, and 1.375, respectively. These emission factors have a good agreement with the default values, 0.56, 0.20, and 1.35, recommended by IPCC. It is indicated that this calculation method can be used to determine carbon dioxide emission factors in iron and steel company reasonably.