摘要
通过分析全球原铝生产碳排放量和碳排放强度,以及各工序的碳排放强度变化趋势,揭示了原铝生产量、电解铝交流电耗和电力能源结构是影响碳排放的最主要3个因素。其中电力能源结构是影响碳排放强度的最重要因素,电力碳排放强度的增加完全抵消了非电力碳排放强度大幅下降的贡献。因此,控制电力碳排放是降低电解铝碳排放的重中之重。今后,中国将进一步降低电解铝交流电耗,调整电力能源结构、大幅提高绿电使用比例,为实现“碳中和”目标和应对气候变化作出更大贡献。
By analyzing the carbon emission and intensity of global primary aluminum production,as well as the change trend of carbon emission intensity of each process,the article reveals that primary aluminum production,AC power consumption by aluminum electrolysis and power structure are the three most important factors affecting carbon emission.Of the three factors,the structure of the energy used for producing electrolytic aluminum is the most important factor affecting carbon emission intensity,and the resultant increase in carbon emission intensity completely offsets the contribution of non-power carbon emission sources.Therefore,controlling the carbon emission of electric power is the most important measure to reduce the carbon emission of electrolytic aluminum.In the future,China will further reduce the AC power consumption by electrolytic aluminum,adjust the energy structure,and significantly increase the proportion of green electricity,so as to make greater contributions to achieving the goal of carbon neutrality and coping with climate change.
作者
王旋
许立松
WANG Xuan;XU Li-song
出处
《有色冶金节能》
2022年第4期1-6,共6页
Energy Saving of Nonferrous Metallurgy
关键词
电解铝
碳排放
温室气体
交流电耗
电力能源结构
碳排放强度
electrolytic aluminum
carbon emissions
greenhouse gases
AC power consumption
energy structure
carbon emission intensity
作者简介
王旋(1986—),男,贵州金沙人,硕士,高级工程师,主要从事铝电解工程设计与研发工作。
