中国铝的社会蓄积量及折旧再生指数分析

发布时间：2018-01-19 18:59

本文关键词： 铝废铝社会蓄积量平均年龄回收率折旧再生指数　出处：《东北大学学报(自然科学版)》2015年09期 　论文类型：期刊论文

【摘要】：我国近些年来原铝产量和消费量快速增长,铝土矿资源严重不足,在很大程度上依赖于进口.随着铝社会蓄积量的增大,废铝资源将越来越多,并在铝工业中发挥更大的作用.通过对我国铝的社会蓄积量及其平均年龄、回收率、折旧再生指数等进行分析,得到以下结果:1990年~2010年铝的社会蓄积量从723万t增长到10 355万t;2010年铝制品的平均年龄约为4.3年,折旧再生指数和铝的社会蓄积量回收率分别为0.074 7 t/t和1.17%.基于未来铝消费的3种情景进行了分析,在情景3下:预计我国铝的社会蓄积量在2035年达到最大值6亿t,2055年稳定在5.7亿t;铝制品平均年龄在2040年达到最大值(7.13年),同年折旧再生指数达到最大值(0.79 t/t),铝的社会蓄积量回收率也达到最大值(5.05%).研究结果将为铝工业相关政策的制定提供一定的参考.
[Abstract]:In recent years, the output and consumption of primary aluminum in China has increased rapidly, and the bauxite resources are seriously insufficient, which depend on imports to a large extent. With the increase of aluminum social volume, the waste aluminum resources will become more and more. By analyzing the social volume of aluminum and its average age, recovery rate, depreciation and regeneration index, etc. The results are as follows: from 1990 to 2010, the social volume of aluminum increased from 7.23 million t to 103.55 million t; In 2010, the average age of aluminium products was about 4.3 years. The depreciation regeneration index and the social volume recovery rate of aluminum were 0.074 7 t / t and 1.17 t, respectively. The analysis was based on three scenarios of future aluminum consumption. Under scenario 3, it is expected that the social accumulation of aluminum in China will reach a maximum of 600 million t in 2035 and stable at 570 million t in 2055; The average age of aluminum products reached the maximum in 2040 (7.13 years and the depreciation and regeneration index reached a maximum of 0.79 t / t in the same year). The social accumulative recovery rate of aluminum has also reached the maximum value of 5.05. The results of the study will provide some reference for the formulation of relevant policies in aluminum industry.
【作者单位】：东北大学国家环境保护生态工业重点实验室;
【基金】：国家自然科学基金资助项目(71373003,41401636)
【分类号】：F426.32
【正文快照】： 目前我国已成为世界最大的铝生产国和消费国.然而,随着产能和需求不断攀升,中国铝工业资源短缺问题日益凸显,矿石供保量严重不足.近几年我国铝土矿对外依存度均超过50%.统计显示,中国铝土矿资源基础储量为7亿t左右,资源储备为5.55亿t左右,仅占世界总储量的3%,且可开采的资源较

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