Abstract
The present technology to handle end-of-life vehicles usually generates about 20-30% of the automobile shredder residue (ASR) of a new car in weight, which is disposed of via landfill or combustion at cement kilns and incinerators. Recently, surveys to compare various techniques such as pyrolysis, gasification, and melting to treat ASR with a better recycling rate have been reported. Gasification and melting processes are operated at high temperatures with the destruction of hazardous components and production of gases, mainly CO and H2, which can be utilized as fuel gas or raw chemicals after cleaning. Also the remaining slag solid portion is stable enough without being hazardous and it can be utilized as recycled material. In this study, ASR sampled from a shredding company was tested in a laboratory-scale gasification and melting process to characterize the gaseous and slag products. At higher temperatures and a lower air equivalent ratio (ER), CO, H2, and CH4 emission increased but CO2 and N2 decreased. C2H6 concentrations changed, but different ERs were not clear. However, there was an increasing tendency of its emission amount at lower temperatures. Carbon conversion efficiency, gas yield (Gy), and CO2 increased with an increasing ER. Thus, when the temperature was higher, Gy and carbon conversion efficiency increased. By-product yield was related to carbon conversion efficiency and Gy. Characteristics of slag produced, such as segregation of metal, leaching property, composition, and surface morphology, were also analyzed.
| Original language | English |
|---|---|
| Pages (from-to) | 577-586 |
| Number of pages | 10 |
| Journal | Environmental Engineering Science |
| Volume | 27 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2010 Jul 1 |
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All Science Journal Classification (ASJC) codes
- Environmental Chemistry
- Waste Management and Disposal
- Pollution
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Studies on gasification and melting characteristics of automobile shredder residue. / Cho, Sung Jin; Jung, Hae Young; Seo, Yongchil; Kim, Woo Hyun.
In: Environmental Engineering Science, Vol. 27, No. 7, 01.07.2010, p. 577-586.Research output: Contribution to journal › Article
TY - JOUR
T1 - Studies on gasification and melting characteristics of automobile shredder residue
AU - Cho, Sung Jin
AU - Jung, Hae Young
AU - Seo, Yongchil
AU - Kim, Woo Hyun
PY - 2010/7/1
Y1 - 2010/7/1
N2 - The present technology to handle end-of-life vehicles usually generates about 20-30% of the automobile shredder residue (ASR) of a new car in weight, which is disposed of via landfill or combustion at cement kilns and incinerators. Recently, surveys to compare various techniques such as pyrolysis, gasification, and melting to treat ASR with a better recycling rate have been reported. Gasification and melting processes are operated at high temperatures with the destruction of hazardous components and production of gases, mainly CO and H2, which can be utilized as fuel gas or raw chemicals after cleaning. Also the remaining slag solid portion is stable enough without being hazardous and it can be utilized as recycled material. In this study, ASR sampled from a shredding company was tested in a laboratory-scale gasification and melting process to characterize the gaseous and slag products. At higher temperatures and a lower air equivalent ratio (ER), CO, H2, and CH4 emission increased but CO2 and N2 decreased. C2H6 concentrations changed, but different ERs were not clear. However, there was an increasing tendency of its emission amount at lower temperatures. Carbon conversion efficiency, gas yield (Gy), and CO2 increased with an increasing ER. Thus, when the temperature was higher, Gy and carbon conversion efficiency increased. By-product yield was related to carbon conversion efficiency and Gy. Characteristics of slag produced, such as segregation of metal, leaching property, composition, and surface morphology, were also analyzed.
AB - The present technology to handle end-of-life vehicles usually generates about 20-30% of the automobile shredder residue (ASR) of a new car in weight, which is disposed of via landfill or combustion at cement kilns and incinerators. Recently, surveys to compare various techniques such as pyrolysis, gasification, and melting to treat ASR with a better recycling rate have been reported. Gasification and melting processes are operated at high temperatures with the destruction of hazardous components and production of gases, mainly CO and H2, which can be utilized as fuel gas or raw chemicals after cleaning. Also the remaining slag solid portion is stable enough without being hazardous and it can be utilized as recycled material. In this study, ASR sampled from a shredding company was tested in a laboratory-scale gasification and melting process to characterize the gaseous and slag products. At higher temperatures and a lower air equivalent ratio (ER), CO, H2, and CH4 emission increased but CO2 and N2 decreased. C2H6 concentrations changed, but different ERs were not clear. However, there was an increasing tendency of its emission amount at lower temperatures. Carbon conversion efficiency, gas yield (Gy), and CO2 increased with an increasing ER. Thus, when the temperature was higher, Gy and carbon conversion efficiency increased. By-product yield was related to carbon conversion efficiency and Gy. Characteristics of slag produced, such as segregation of metal, leaching property, composition, and surface morphology, were also analyzed.
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U2 - 10.1089/ees.2009.0389
DO - 10.1089/ees.2009.0389
M3 - Article
VL - 27
SP - 577
EP - 586
JO - Environmental Engineering Science
JF - Environmental Engineering Science
SN - 1092-8758
IS - 7
ER -