The Role of Automobiles for the Future of Aluminum Recycling

被引:99
作者
Modaresi, Roja [1 ]
Muller, Daniel B. [1 ]
机构
[1] Norwegian Univ Sci & Technol NTNU, Dept Hydraul & Environm Engn, Ind Ecol Programme IndEcol, NO-7491 Trondheim, Norway
关键词
D O I
10.1021/es300648w
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
To reach required product qualities with lowest costs, aluminum postconsumer scrap is currently recycled using strategies of downgrading and dilution, due to difficulties in refining. These strategies depend on a continuous and fast growth of the bottom reservoir of the aluminum downgrading cascade, which is formed by secondary castings, mainly used in automotive applications. A dynamic material flow model for the global vehicle system was developed to assess the likelihood, timing, and extent of a potential scrap surplus. The results demonstrate that a continuation of the above-mentioned strategies will lead to a nonrecyclable scrap surplus by around 2018 +/- 5 if no additional measures are taken. The surplus could grow to reach a level of 0.4-2 kg/cap/yr in 2050, corresponding to a loss of energy saving potential of 43-240 TWh/yr electricity. Various intervention options for avoiding scrap surplus are discussed. Effective strategies need to include an immediate and rapid penetration of dramatically improved scrap sorting technologies for end-of-life vehicles and other aluminum applications.
引用
收藏
页码:8587 / 8594
页数:8
相关论文
共 35 条
[1]  
AAM, 2010, AL AUT MAN
[2]  
[Anonymous], 2010, Energy Technology Perspectives 2010 - Scenarios Strategies to 2050
[3]  
[Anonymous], 2010, Statistical Yearbook
[4]  
[Anonymous], 2003, WORLD POP 2300
[5]  
[Anonymous], 2008, LIFE CYCLE INVENTORY
[6]  
Dargay J., 2007, Vehicle ownership and income growth, worldwide: 1960-2030
[7]  
Ducker Auto and Light Truck Group, 2009, 2009 UPDATE N AM LIG
[8]  
EAA, 1999, AUT AL REC
[9]  
Furrer P., 2009, ALUMINIUM CAR BODY S
[10]   Improving aluminum recycling: A survey of sorting and impurity removal technologies [J].
Gaustad, Gabrielle ;
Olivetti, Elsa ;
Kirchain, Randolph .
RESOURCES CONSERVATION AND RECYCLING, 2012, 58 :79-87