| 中国铝物质流历史变化分析和再生铝资源利用研究 |
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| 关键词:aluminum material flow analysis stock structure evolution secondary resources |
| 基金项目:国家自然科学基金基础科学中心项目“数字经济时代的资源环境管理理论与应用”(编号: 72088101);国家重点研发计划课题“全球战略性矿产大数据平台;预警与决策支持技术”(编号: 2021YFC2901801);国家社会科学基金重大项目“自然资源高效利用与经济安全;高质量发展机制研究”(编号: 21&ZD104);中国地质调查局地质调查项目“全球矿产资源战略研究”(编号: DD20221795) |
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| Analysis of the Historical Changes in Aluminum Material Flow and the Utilization of Secondary Aluminum Resources in China |
| In this paper, a research framework was formulated to analyze the complete life cycle of aluminum by using material flow analysis (MFA), which applied the ‘top to bottom’ approach to track the flow, stock, and secondary supply of aluminum in China from 1949 to 2021. The results revealed the following: 1) The inflow of aluminum from bauxite in China was 586 Mt (million tons) from 1949 to 2021, with the domestic production and import accounting for approximately half of this number, while the actual consumption was 374 Mt. The loss of aluminum during the life cycle was severe, and the volume of resources lost reached 239 Mt. 2) In 2021, the per capita aluminum social stock was 208.9 kg, which is consistent with that of North America and Japan in the same period of economic development. 3) From 1990 to 2021, the cumulative supply of secondary aluminum in China reached 77 Mt, of which 76.7% was produced in China. As aluminum-containing products reach their life and the future demand for these products continues to rise, the era in which aluminum-containing products being scrapped will gradually usher in. Therefore, it is suggested that the loss of aluminum be reduced at every stage from the perspective of its complete life cycle. Creating a rational layout of the recycled aluminum industry, improving the utilization of secondary aluminum, optimizing the aluminum supply structure, and promoting the low-carbon transformation of the aluminum industry will help achieve the ambitious ‘carbon neutral’ and ‘carbon peak’ targets. |
| LIU Yan-fei,LI Ying,LIN Zi-peng,LIU Qian-ce,HAN Zhong-kui.2023.Analysis of the Historical Changes in Aluminum Material Flow and the Utilization of Secondary Aluminum Resources in China[J].Acta Geoscientica Sinica,44(2):333-340. |
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