隔河岩水电站水电制氢冶金碳减排前景分析OA北大核心CSTPCD

The metallurgical industry is a high-energy consuming industry,and its carbon reduction pressure is enormous.Hydrogen can participate in the metallurgical process as a reducing agent and can also be used as energy,with huge potential for carbon reduction.Taking Geheyan Hydropower Station in Qingjiang river as a case,this study evaluated the comprehensive carbon emission reduction effect of utilizing hydropower-generated hydrogen for the local metallurgical industry with emission factor method.The results show that using the hydrogen produced by Geheyan Hydropower Station for the metallurgical industry achieves a comprehensive carbon emission reduction effect of 0.246 2 t CO2eq per ton of metallurgy.The substitution ratio of pure hydrogen is the key factor affecting carbon emission reduction.Hydropower-generated hydro-gen for the local metallurgical industry increases the cost per ton of metallurgy by 338.4 yuan.At this point,the electricity price should be approximately 0.14 yuan/kWh or lower,or the hydrogen production efficiency should increase to 2 kWh/Nm3,for hydrogen metallurgy and traditional metallurgy costs to be e-qual.Making full use of surplus hydropower for hydrogen production can achieve the maximum economic benefits with an additional annual profit of 8 037 500 yuan.Without affecting the economic performance of Geheyan Hydropower Station,the maximum potential for carbon emission reduction in hydrogen metallur-gy can reach 23 790.03 t CO2eq per year.In the context of the current dual-carbon goals,utilizing hydropow-er for hydrogen production and combining it with local hydrogen usage scenarios can achieve positive effects in economic,environmental,and social aspects.This approach is a feasible way to achieve the"dual-carbon"targets under the premise of sustainability.