Gasification and dry distillation of automobile shredder residue (ASR)

✍ Scribed by Mitsuo Horii; Shuji Iida

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 737 KB
• Volume: 22
• Category: Article
• ISSN: 0389-4304
• DOI: 10.1016/s0389-4304(00)00090-4

✦ Synopsis

A variety of energy recovery technologies are being developed for recovering usable materials from automobile shredder residue (ASR), considering combustible gases and protecting the environment. We measured the pyrolysis characteristics of ASR in a gasi"cation, dry distillation process. For e$ciently recovering thermal energy, we determined that a heating value of the evolved gas of about 15.5 MJ/kg (3700 kcal/kg) can be achieved at a pyrolysis temperature greater than 5003C. We also determined that pyrolysis temperatures must be maintained below 7003C to prevent forming signi"cant levels of oxidized copper in the ASR residue. In this paper we describe such a dry distillation system and operating conditions to achieve e$cient operation.