Distribution characteristics of PCDDs/PCDFs in products generated from Pyrolysis/ gasification/ melting process of automobile shredder residues

Hyun Tae Joung, Sung Jin Cho, Yong Chil Seo, Woo Hyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In Korea, the number of automobiles in use is around 15,400,000 and 500,000 End-of-Life Vehicles (ELVs) are generated annually. About 80,000 of ELVs are exported and rest of them are dismantled and shredded to recover valuable parts. After recovering steel at a shredding factory, the residue (automobile shredder residue; ASR) is left and this can be converted into any fuel forms such as gas, oil, or char using pyrolysis or gasification technology. In this study, dioxin concentrations and distributions of congeners in products (i. e. the yields of gas, oil, char and melting slag) from ASR pyrolysis, and dioxin concentrations in ASR are analyzed to compare the products of pyrolysis. In addition, the emission characteristics of dioxin at different air/fuel ratios and the distribution of dioxin concentrations in melting slag are investigated. ASR was found containing about 6 pg-TEQ/g of dioxins with more chlorinated congeners. Product gas in the presence of oxygen (gasification) shows 75 times higher concentration of dioxins than that with no oxygen present (pyrolysis). Oil produced by pyrolysis contained more chlorinated dioxins and char product showed higher dioxin concentration at air existence. All products, gas, oil, and char, tend to include more PCDFs than PCDDs because of lack of oxygen during pyrolysis. The obtained results will be used as basic data for developing pyrolysis, gasification and melting technologies of ASR in future.

Original languageEnglish
Title of host publication26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3
Publication statusPublished - 2007 Dec 1
Event26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3 - Phoenix, AZ, United States
Duration: 2007 May 142007 May 18

Publication series

NameA and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3

Other

Other26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3
CountryUnited States
CityPhoenix, AZ
Period07/5/1407/5/18

Fingerprint

Gasification
Automobiles
Melting
Pyrolysis
Gas oils
Slags
Oxygen
Air
Industrial plants
Steel
Gases

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Joung, H. T., Cho, S. J., Seo, Y. C., & Kim, W. H. (2007). Distribution characteristics of PCDDs/PCDFs in products generated from Pyrolysis/ gasification/ melting process of automobile shredder residues. In 26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3 (A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3).
Joung, Hyun Tae ; Cho, Sung Jin ; Seo, Yong Chil ; Kim, Woo Hyun. / Distribution characteristics of PCDDs/PCDFs in products generated from Pyrolysis/ gasification/ melting process of automobile shredder residues. 26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3. 2007. (A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3).
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abstract = "In Korea, the number of automobiles in use is around 15,400,000 and 500,000 End-of-Life Vehicles (ELVs) are generated annually. About 80,000 of ELVs are exported and rest of them are dismantled and shredded to recover valuable parts. After recovering steel at a shredding factory, the residue (automobile shredder residue; ASR) is left and this can be converted into any fuel forms such as gas, oil, or char using pyrolysis or gasification technology. In this study, dioxin concentrations and distributions of congeners in products (i. e. the yields of gas, oil, char and melting slag) from ASR pyrolysis, and dioxin concentrations in ASR are analyzed to compare the products of pyrolysis. In addition, the emission characteristics of dioxin at different air/fuel ratios and the distribution of dioxin concentrations in melting slag are investigated. ASR was found containing about 6 pg-TEQ/g of dioxins with more chlorinated congeners. Product gas in the presence of oxygen (gasification) shows 75 times higher concentration of dioxins than that with no oxygen present (pyrolysis). Oil produced by pyrolysis contained more chlorinated dioxins and char product showed higher dioxin concentration at air existence. All products, gas, oil, and char, tend to include more PCDFs than PCDDs because of lack of oxygen during pyrolysis. The obtained results will be used as basic data for developing pyrolysis, gasification and melting technologies of ASR in future.",
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Joung, HT, Cho, SJ, Seo, YC & Kim, WH 2007, Distribution characteristics of PCDDs/PCDFs in products generated from Pyrolysis/ gasification/ melting process of automobile shredder residues. in 26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3. A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3, 26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3, Phoenix, AZ, United States, 07/5/14.

Distribution characteristics of PCDDs/PCDFs in products generated from Pyrolysis/ gasification/ melting process of automobile shredder residues. / Joung, Hyun Tae; Cho, Sung Jin; Seo, Yong Chil; Kim, Woo Hyun.

26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3. 2007. (A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Distribution characteristics of PCDDs/PCDFs in products generated from Pyrolysis/ gasification/ melting process of automobile shredder residues

AU - Joung, Hyun Tae

AU - Cho, Sung Jin

AU - Seo, Yong Chil

AU - Kim, Woo Hyun

PY - 2007/12/1

Y1 - 2007/12/1

N2 - In Korea, the number of automobiles in use is around 15,400,000 and 500,000 End-of-Life Vehicles (ELVs) are generated annually. About 80,000 of ELVs are exported and rest of them are dismantled and shredded to recover valuable parts. After recovering steel at a shredding factory, the residue (automobile shredder residue; ASR) is left and this can be converted into any fuel forms such as gas, oil, or char using pyrolysis or gasification technology. In this study, dioxin concentrations and distributions of congeners in products (i. e. the yields of gas, oil, char and melting slag) from ASR pyrolysis, and dioxin concentrations in ASR are analyzed to compare the products of pyrolysis. In addition, the emission characteristics of dioxin at different air/fuel ratios and the distribution of dioxin concentrations in melting slag are investigated. ASR was found containing about 6 pg-TEQ/g of dioxins with more chlorinated congeners. Product gas in the presence of oxygen (gasification) shows 75 times higher concentration of dioxins than that with no oxygen present (pyrolysis). Oil produced by pyrolysis contained more chlorinated dioxins and char product showed higher dioxin concentration at air existence. All products, gas, oil, and char, tend to include more PCDFs than PCDDs because of lack of oxygen during pyrolysis. The obtained results will be used as basic data for developing pyrolysis, gasification and melting technologies of ASR in future.

AB - In Korea, the number of automobiles in use is around 15,400,000 and 500,000 End-of-Life Vehicles (ELVs) are generated annually. About 80,000 of ELVs are exported and rest of them are dismantled and shredded to recover valuable parts. After recovering steel at a shredding factory, the residue (automobile shredder residue; ASR) is left and this can be converted into any fuel forms such as gas, oil, or char using pyrolysis or gasification technology. In this study, dioxin concentrations and distributions of congeners in products (i. e. the yields of gas, oil, char and melting slag) from ASR pyrolysis, and dioxin concentrations in ASR are analyzed to compare the products of pyrolysis. In addition, the emission characteristics of dioxin at different air/fuel ratios and the distribution of dioxin concentrations in melting slag are investigated. ASR was found containing about 6 pg-TEQ/g of dioxins with more chlorinated congeners. Product gas in the presence of oxygen (gasification) shows 75 times higher concentration of dioxins than that with no oxygen present (pyrolysis). Oil produced by pyrolysis contained more chlorinated dioxins and char product showed higher dioxin concentration at air existence. All products, gas, oil, and char, tend to include more PCDFs than PCDDs because of lack of oxygen during pyrolysis. The obtained results will be used as basic data for developing pyrolysis, gasification and melting technologies of ASR in future.

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M3 - Conference contribution

AN - SCOPUS:77956870085

SN - 9780923204822

T3 - A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3

BT - 26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3

ER -

Joung HT, Cho SJ, Seo YC, Kim WH. Distribution characteristics of PCDDs/PCDFs in products generated from Pyrolysis/ gasification/ melting process of automobile shredder residues. In 26th Annual International Conference on Incineration and Thermal Treatment Technologies, IT3. 2007. (A and WM, Annual International Conference on Incineration and Thermal Treatment Technologies, IT3).