Scrap resource forecasting and high-quality utilization strategy research under carbon neutrality
The high-quality utilization of scrap steel is an important way for China's iron and steel industry to achieve green and low-carbon development,as well as"carbon peak"and"carbon neutrality".It analyzes the current situation of scrap utilization worldwide,as well as the problems in scrap utilization in China's steel industry;the dynamic mate-rial flow analysis method was used to predict the changes in scrap steel resources and steel social stock under China's carbon neutrality target.The results showed that by 2030,when China is expected to achieve an overall carbon peak,the steel social stock is expected to reach more than 15 billion tons.Subsequently,due to the gradual decrease in steel demand and the stable development of downstream industries,the growth rate of steel storage will also slow down.After 2040,China's steel social stock will be maintained at around 20 billion tons,and the per capita steel stock will be on par with developed countries such as Europe and America.With the continuous increase in the accu-mulation of steel in society,the problem of insufficient scrap steel resources will be alleviated in the future.Before 2040,China's scrap steel resources will enter a period of stable development.After 2050,due to the trend of stable social development and the gradual decrease in steel demand,the scrap steel resources will also show a downward trend;from the perspective of the utilization of scrap in the blast furnace converter process and electric furnace pro-cess,it analyzes the changes in China's steel production process and the impact of scrap utilization on energy conser-vation and carbon reduction in the steel industry.The results showed that increasing the proportion of scrap utiliza-tion can significantly reduce the comprehensive energy consumption and carbon dioxide emissions per ton of steel,whether in long or short processes;it is pointed out that promoting the high-quality utilization of scrap steel resources should start from improving and perfecting the scrap steel recycling and utilization system,improving the classification and pretreatment capacity of scrap steel,expanding the use scenarios to improve scrap steel utilization,promoting tax incentives,and other aspects,in order to improve the efficiency of scrap steel resource recycling and help achieve carbon neutrality goals.
NETL
NSTL
万方数据
