TY - JOUR
T1 - Effect of heating rate on the pyrolysis of high-impact polystyrene containing brominated flame retardants
T2 - Fate of brominated flame retardants
AU - Grause, Guido
AU - Karakita, Daiki
AU - Kameda, Tomohito
AU - Bhaskar, Thallada
AU - Yoshioka, Toshiaki
N1 - Funding Information:
T. Bhaskar Bio-Fuels Division (BFD), Indian Institute of Petroleum (IIP) Council of Scientific and Industrial Research (CSIR), Dehradun 248005, India
Funding Information:
Acknowledgments This research was partially supported by the Japanese Ministry of Education, Science, Sports, and Culture, Grand-in-Aid for Scientific Research (A), 30241532, 2009.
PY - 2012/9
Y1 - 2012/9
N2 - In the case of plastics containing brominated flame retardants, various brominated organic compounds, including polybrominated dibenzodioxins and dibenzofurans, are yielded when they are degraded. In order to reduce the hazard that might be generated during after-live treatment, the behaviour of flame retarded high-impact polystyrene containing decabromo diphenylether and antimony oxide (Sb2O3), was investigated using several heating programs. It was found that the separation of the thermal process into two steps divided at 330 °C makes it possible to obtain an oil fraction rich in brominated compounds at low temperatures and an oil fraction depleted in brominated compounds at high temperatures. The low temperature oil contained a high concentration of SbBr3 and dibromodibenzofurans. Various brominated compounds with a low volatility and 1-bromo-1-phenylethane from the reaction of HBr with styrene were among the substances in the high temperature oil. The concentration of brominated compounds was reduced from 6 wt% for degradation in a single step to below 1 wt% in the high temperature oil in the two step process.
AB - In the case of plastics containing brominated flame retardants, various brominated organic compounds, including polybrominated dibenzodioxins and dibenzofurans, are yielded when they are degraded. In order to reduce the hazard that might be generated during after-live treatment, the behaviour of flame retarded high-impact polystyrene containing decabromo diphenylether and antimony oxide (Sb2O3), was investigated using several heating programs. It was found that the separation of the thermal process into two steps divided at 330 °C makes it possible to obtain an oil fraction rich in brominated compounds at low temperatures and an oil fraction depleted in brominated compounds at high temperatures. The low temperature oil contained a high concentration of SbBr3 and dibromodibenzofurans. Various brominated compounds with a low volatility and 1-bromo-1-phenylethane from the reaction of HBr with styrene were among the substances in the high temperature oil. The concentration of brominated compounds was reduced from 6 wt% for degradation in a single step to below 1 wt% in the high temperature oil in the two step process.
KW - Antimony oxide
KW - Brominated dibenzofurans
KW - Decabromo diphenylether
KW - Pyrolysis
KW - Temperature program
KW - WEEE
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U2 - 10.1007/s10163-012-0067-8
DO - 10.1007/s10163-012-0067-8
M3 - Article
AN - SCOPUS:84866737566
VL - 14
SP - 259
EP - 265
JO - Journal of Material Cycles and Waste Management
JF - Journal of Material Cycles and Waste Management
SN - 1438-4957
IS - 3
ER -