RESEARCH ON LOW CARBON AUTOMOTIVE STEEL PLATE BASED ON LIFE CYCLE ASSESSMENT
Steel enterprises,as industrial raw materials and heavy industrial sites with the highest carbon emission density in the world,have been included in the first implementation list of the EU carbon border adjustment mechanism.The formal implementation of this bill will force steel companies exporting EU products to determine research objectives,standardize research boundaries,establish a carbon footprint life cycle assessment list,and build accounting models based on the ISO series standards.Ultimately,the carbon footprint values will be provided to the EU for later taxation.In response,a certain steel enterprise constructed a research boundary for low-carbon automotive steel plates based on the full life cycle method,starting from the supply of coking,sintering,and pellet raw materials to the gate of the steel plant.Subsequently,based on the input-output situation involved within the boundary,including the transportation situation from upstream suppliers to the gates of steel enterprises,an evaluation checklist was established.A carbon emission accounting model was built according to the content of the checklist.By optimizing the input variable parameters of three low-carbon technologies,namely converter scrap ratio,blast furnace pellet ratio,and full green electricity in the production process,it was found that the production of 1t automotive steel plate can achieve a carbon reduction rate of 50.95％when the pellet ratio is increased by 7％,the scrap ratio is increased by 28％,and the production process is 100％green electricity at the current level.Although different automotive steel plates have significant differences in steel performance,smelting process and cycle,the comprehensive use of the above three technologies can reduce carbon emissions by more than 30％.
万方数据
维普
