Pyrolysis studies of PP/PE/PS/PVC/HIPS-Br plastics mixed with PET and dehalogenation (Br, Cl) of the liquid products

Thallada Bhaskar; Jun Kaneko; Akinori Muto; Yusaku Sakata; Emma Jakab; Toshiki Matsui; Md Azhar Uddin

doi:10.1016/j.jaap.2004.01.005

Pyrolysis studies of PP/PE/PS/PVC/HIPS-Br plastics mixed with PET and dehalogenation (Br, Cl) of the liquid products

Thallada Bhaskar, Jun Kaneko, Akinori Muto, Yusaku Sakata, Emma Jakab, Toshiki Matsui, Md Azhar Uddin

Research output: Contribution to journal › Article › peer-review

101 Citations (Scopus)

Abstract

Pyrolysis of polypropylene (PP)/polyethylene (PE)/polystyrene (PS)/poly(vinyl chloride) (PVC)/high impact polystyrene with brominated flame retardant (HIPS-Br) plastics mixed with poly(ethylene terephthalate) (PET) was performed at 430°C under atmospheric pressure using a semi-batch operation. The presence of PET in the pyrolysis mixture of PP/PE/PS/PVC/HIPS-Br affected significantly the formation of decomposition products and the decomposition behavior of the plastic mixture. We observed the following effects of PET on the pyrolysis of PP/PE/PS/PVC/HIPS-Br mixed plastics: (i) the yield of liquid product decreased and the formation of gaseous products increased; (ii) a waxy residue was formed in addition to the solid carbon residue; (iii) the formation of SbBr₃ was not detected in liquid products; (iv) the yield of chlorinated branched alkanes increased as well as vinyl bromide and ethyl bromide were formed. The use of calcium carbonate carbon composite (Ca-C) completely removed the chlorine and bromine content from the liquid products during PP/PE/PS/PVC/HIPS-Br pyrolysis, however in the presence of PET, the catalytic experiment (Ca-C, 8g) yielded liquid products containing 310ppm of Br and 20ppm of Cl. In addition, the Ca-C increased the yield of liquid products about 3-6wt.%, as well as enhanced the gaseous product evolution and decreased the yield of residue. The halogen free liquid hydrocarbons can be used as a feedstock in a refinery or as a fuel.

Original language	English
Pages (from-to)	27-33
Number of pages	7
Journal	Journal of Analytical and Applied Pyrolysis
Volume	72
Issue number	1
DOIs	https://doi.org/10.1016/j.jaap.2004.01.005
Publication status	Published - Aug 2004
Externally published	Yes

Keywords

Calcium carbonate
Dehalogenation
Flame retardant
HIPS-Br
PET
Pyrolysis

ASJC Scopus subject areas

Analytical Chemistry
Fuel Technology

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10.1016/j.jaap.2004.01.005

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@article{c0319c8efdf74cda9cbfcc9ec4ba59cb,

title = "Pyrolysis studies of PP/PE/PS/PVC/HIPS-Br plastics mixed with PET and dehalogenation (Br, Cl) of the liquid products",

abstract = "Pyrolysis of polypropylene (PP)/polyethylene (PE)/polystyrene (PS)/poly(vinyl chloride) (PVC)/high impact polystyrene with brominated flame retardant (HIPS-Br) plastics mixed with poly(ethylene terephthalate) (PET) was performed at 430°C under atmospheric pressure using a semi-batch operation. The presence of PET in the pyrolysis mixture of PP/PE/PS/PVC/HIPS-Br affected significantly the formation of decomposition products and the decomposition behavior of the plastic mixture. We observed the following effects of PET on the pyrolysis of PP/PE/PS/PVC/HIPS-Br mixed plastics: (i) the yield of liquid product decreased and the formation of gaseous products increased; (ii) a waxy residue was formed in addition to the solid carbon residue; (iii) the formation of SbBr3 was not detected in liquid products; (iv) the yield of chlorinated branched alkanes increased as well as vinyl bromide and ethyl bromide were formed. The use of calcium carbonate carbon composite (Ca-C) completely removed the chlorine and bromine content from the liquid products during PP/PE/PS/PVC/HIPS-Br pyrolysis, however in the presence of PET, the catalytic experiment (Ca-C, 8g) yielded liquid products containing 310ppm of Br and 20ppm of Cl. In addition, the Ca-C increased the yield of liquid products about 3-6wt.%, as well as enhanced the gaseous product evolution and decreased the yield of residue. The halogen free liquid hydrocarbons can be used as a feedstock in a refinery or as a fuel.",

keywords = "Calcium carbonate, Dehalogenation, Flame retardant, HIPS-Br, PET, Pyrolysis",

author = "Thallada Bhaskar and Jun Kaneko and Akinori Muto and Yusaku Sakata and Emma Jakab and Toshiki Matsui and Uddin, {Md Azhar}",

note = "Funding Information: The authors thank New Energy Development Organization (NEDO), Japan for financial support to carryout this research work under the Chugoku Regional Consortium Project (2000–2003). Dr. E. Jakab gratefully acknowledges Venture Bussiness Laboratory (VBL) of the Okayama University to carry out this cooperative research in Japan and the Hungarian National Research Fund (OTKA T037704) for the work in Hungary.",

year = "2004",

month = aug,

doi = "10.1016/j.jaap.2004.01.005",

language = "English",

volume = "72",

pages = "27--33",

journal = "Journal of Analytical and Applied Pyrolysis",

issn = "0165-2370",

publisher = "Elsevier",

number = "1",

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TY - JOUR

T1 - Pyrolysis studies of PP/PE/PS/PVC/HIPS-Br plastics mixed with PET and dehalogenation (Br, Cl) of the liquid products

AU - Bhaskar, Thallada

AU - Kaneko, Jun

AU - Muto, Akinori

AU - Sakata, Yusaku

AU - Jakab, Emma

AU - Matsui, Toshiki

AU - Uddin, Md Azhar

N1 - Funding Information: The authors thank New Energy Development Organization (NEDO), Japan for financial support to carryout this research work under the Chugoku Regional Consortium Project (2000–2003). Dr. E. Jakab gratefully acknowledges Venture Bussiness Laboratory (VBL) of the Okayama University to carry out this cooperative research in Japan and the Hungarian National Research Fund (OTKA T037704) for the work in Hungary.

PY - 2004/8

Y1 - 2004/8

N2 - Pyrolysis of polypropylene (PP)/polyethylene (PE)/polystyrene (PS)/poly(vinyl chloride) (PVC)/high impact polystyrene with brominated flame retardant (HIPS-Br) plastics mixed with poly(ethylene terephthalate) (PET) was performed at 430°C under atmospheric pressure using a semi-batch operation. The presence of PET in the pyrolysis mixture of PP/PE/PS/PVC/HIPS-Br affected significantly the formation of decomposition products and the decomposition behavior of the plastic mixture. We observed the following effects of PET on the pyrolysis of PP/PE/PS/PVC/HIPS-Br mixed plastics: (i) the yield of liquid product decreased and the formation of gaseous products increased; (ii) a waxy residue was formed in addition to the solid carbon residue; (iii) the formation of SbBr3 was not detected in liquid products; (iv) the yield of chlorinated branched alkanes increased as well as vinyl bromide and ethyl bromide were formed. The use of calcium carbonate carbon composite (Ca-C) completely removed the chlorine and bromine content from the liquid products during PP/PE/PS/PVC/HIPS-Br pyrolysis, however in the presence of PET, the catalytic experiment (Ca-C, 8g) yielded liquid products containing 310ppm of Br and 20ppm of Cl. In addition, the Ca-C increased the yield of liquid products about 3-6wt.%, as well as enhanced the gaseous product evolution and decreased the yield of residue. The halogen free liquid hydrocarbons can be used as a feedstock in a refinery or as a fuel.

AB - Pyrolysis of polypropylene (PP)/polyethylene (PE)/polystyrene (PS)/poly(vinyl chloride) (PVC)/high impact polystyrene with brominated flame retardant (HIPS-Br) plastics mixed with poly(ethylene terephthalate) (PET) was performed at 430°C under atmospheric pressure using a semi-batch operation. The presence of PET in the pyrolysis mixture of PP/PE/PS/PVC/HIPS-Br affected significantly the formation of decomposition products and the decomposition behavior of the plastic mixture. We observed the following effects of PET on the pyrolysis of PP/PE/PS/PVC/HIPS-Br mixed plastics: (i) the yield of liquid product decreased and the formation of gaseous products increased; (ii) a waxy residue was formed in addition to the solid carbon residue; (iii) the formation of SbBr3 was not detected in liquid products; (iv) the yield of chlorinated branched alkanes increased as well as vinyl bromide and ethyl bromide were formed. The use of calcium carbonate carbon composite (Ca-C) completely removed the chlorine and bromine content from the liquid products during PP/PE/PS/PVC/HIPS-Br pyrolysis, however in the presence of PET, the catalytic experiment (Ca-C, 8g) yielded liquid products containing 310ppm of Br and 20ppm of Cl. In addition, the Ca-C increased the yield of liquid products about 3-6wt.%, as well as enhanced the gaseous product evolution and decreased the yield of residue. The halogen free liquid hydrocarbons can be used as a feedstock in a refinery or as a fuel.

KW - Calcium carbonate

KW - Dehalogenation

KW - Flame retardant

KW - HIPS-Br

KW - PET

KW - Pyrolysis

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ER -

Pyrolysis studies of PP/PE/PS/PVC/HIPS-Br plastics mixed with PET and dehalogenation (Br, Cl) of the liquid products

Abstract

Keywords

ASJC Scopus subject areas

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