TY - JOUR
T1 - Removal of nitrogen, bromine, and chlorine from PP/PE/PS/PVC/ABS-Br pyrolysis liquid products using Fe- And Ca-based catalysts
AU - Brebu, Mihai
AU - Bhaskar, Thallada
AU - Murai, Kazuya
AU - Muto, Akinori
AU - Sakata, Yusaku
AU - Uddin, Md Azhar
N1 - Funding Information:
The authors would like to thank New Energy Development Organization (NEDO), Japan; Ministry of Education, Culture, Sports, Science and Technology, Japan, Centre of Excellence Program for the 21 st Century – Strategic Solid Waste Management for Sustainable Society (SSWMSS), for financial support to carry out this research work under the Chugoku regional consortium project (2000–2003). We are grateful to Dr. Cornelia Vasile from “Petru Poni” Institute, Iasi, Romania, for her valuable discussions.
PY - 2005/2
Y1 - 2005/2
N2 - The thermal and catalytic degradation of a complex polymer mixture was performed at 450°C at atmospheric pressure in a batch process. The mixture contained polyethylene (PE), polypropylene (PP), polystyrene (PS), acrylonitrile-butadiene-styrene copolymer with a brominated flame retardant and antimony oxide Synergist (ABS-Br) and poly(vinyl chloride) (PVC), in a 3/3/ 2/1/1 weight ratio. The effect of iron (FeOOH and Fe-C composite) and calcium (CaCO3 and Ca-C composite) based catalysts for removal of heteroatom- (nitrogen, bromine, and chlorine) containing compounds in oil products was studied. Changes in the amount and distribution of heteroatoms were described using NP gram curves. Iron catalysts give best results for bromine removal from decomposition oil while calcium catalysts have high efficiency for chlorine removal; however, both Fe- and Ca-catalysts have low effect in nitrogen removal. Carbon composite catalysts give three times less chlorine but they produce higher amounts of nitrogen in degradation oils than the corresponding Fe and Ca pure compounds. In bromine removal Ca-C composite shows higher effect compared to CaCO3 while Fe-C composite has slightly worse effect than FeOOH.
AB - The thermal and catalytic degradation of a complex polymer mixture was performed at 450°C at atmospheric pressure in a batch process. The mixture contained polyethylene (PE), polypropylene (PP), polystyrene (PS), acrylonitrile-butadiene-styrene copolymer with a brominated flame retardant and antimony oxide Synergist (ABS-Br) and poly(vinyl chloride) (PVC), in a 3/3/ 2/1/1 weight ratio. The effect of iron (FeOOH and Fe-C composite) and calcium (CaCO3 and Ca-C composite) based catalysts for removal of heteroatom- (nitrogen, bromine, and chlorine) containing compounds in oil products was studied. Changes in the amount and distribution of heteroatoms were described using NP gram curves. Iron catalysts give best results for bromine removal from decomposition oil while calcium catalysts have high efficiency for chlorine removal; however, both Fe- and Ca-catalysts have low effect in nitrogen removal. Carbon composite catalysts give three times less chlorine but they produce higher amounts of nitrogen in degradation oils than the corresponding Fe and Ca pure compounds. In bromine removal Ca-C composite shows higher effect compared to CaCO3 while Fe-C composite has slightly worse effect than FeOOH.
KW - Carbon composites
KW - Catalytic decomposition
KW - Dchalogenation
KW - Fe- And Ca-catalysts
KW - Polymer mixtures
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U2 - 10.1016/j.polymdegradstab.2004.08.008
DO - 10.1016/j.polymdegradstab.2004.08.008
M3 - Article
AN - SCOPUS:12744268192
SN - 0141-3910
VL - 87
SP - 225
EP - 230
JO - Polymer Degradation and Stability
JF - Polymer Degradation and Stability
IS - 2
ER -