Taking a domestic long process steel company as the research subject, the carbon emission intensity of its production of 1 t strip steel was evaluated by the life cycle assessment method. According to the definition and interpretation of the Life Cycle Assessment ( LCA) method, a life cycle inventory was determined using"cradle"to"gate"as the system boundary, and the carbon emissions during the production of 1 ton of strip steel were calculated. The final result showed that the carbon emissions during the production of 1 ton of strip steel were 1.967 tCO2e. By comparing the carbon emissions at home and abroad under different process flows, it was found that a higher proportion of molten iron in the steel smelting process leads to higher total carbon emissions. Therefore, the carbon reduction effect of using four different composition gases as fuel and reducing gases in hydrogen based vertical furnaces was mainly explored.
关键词
钢铁/生命周期评价/碳排放强度/氢基竖炉
Key words
steel/life cycle assessment/carbon emission intensity/hydrogen based vertical furnace
维普
万方数据