Greenhouse gas emissions and reduction potential of primary aluminum production in China
Greenhouse gas emissions and reduction potential of primary aluminum production in China
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DOI：
10.1007/s11431-009-0165-6
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发表时间：
2009-08
期刊：
影响因子：
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通讯作者：
F. Gao;Z. Nie;Zhihong Wang;Hongmei Li;X. Gong;T. Zuo
中科院分区：
文献类型：
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作者：
F. Gao;Z. Nie;Zhihong Wang;Hongmei Li;X. Gong;T. Zuo
以中国铝工业2003年的统计数据为基础，采用“摇篮到出厂”（Cradle-to-Gate）的生命周期评价方法，计算了铝工业的CO2、CH 4、CF 4和C2 F6等温室气体排放量。结果表明，1 t原铝生产的温室气体排放量为21.6tCO2当量，比2000年世界平均水平高出70%。氧化铝精炼和铝冶炼过程是主要的排放源，分别占累计排放量的72%和22%。根据原铝生产新工艺技术的开发和应用，结合国家节能减排目标，对氧化铝和铝生产的温室气体减排潜力进行了估算。结果表明，到2010年底，中国铝工业将实现温室气体减排25%左右的目标。
A cradle-to-gate life cycle assessment was conducted in this paper to calculate the greenhouse gas (GHG) emissions, such as CO2, CH4, CF4and C2F6emissions, based on statistic data of Chinese aluminum industry of the year 2003. The results showed that the GHG emissions for 1 t primary aluminum production was 21.6 t CO2equivalent which is 70% higher than that of worldwide average level of the year 2000. The main contributors of emission were the alumina refining and aluminum smelting process accounting for 72% and 22% in accumulative emission, respectively. According to the development and application of new process technologies for primary aluminum production and the ‘target of energy-saving and emissions-reducing’ of Chinese government, the reduction potential of the GHG emissions for alumina and aluminum production were estimated. The results indicated that China aluminum industry would achieve the target of reducing about 25% GHG emissions by the end of 2010.