- Title
- Pyrolysis studies of PP/PE/PS/PVC/HIPS-Br plastics mixed with PET and dehalogenation (Br, C1) of the liquid products
- Creator
- Bhaskar, Thallada; Kaneko, Jun; Muto, Akinori; Sakata, Yusaku; Jakab, Emma; Matsui, Toshiki; Uddin, Md. Azhar
- Relation
- Journal of Analytical and Applied Pyrolysis Vol. 72, Issue 1, p. 27-33
- Publisher Link
- http://dx.doi.org/10.1016/j.jaap.2004.01.005
- Publisher
- Elsevier BV
- Resource Type
- journal article
- Date
- 2004
- Description
- 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, 8 g) yielded liquid products containing 310 ppm of Br and 20 ppm of Cl. In addition, the Ca-C increased the yield of liquid products about 3–6 wt.%, 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.
- Subject
- HIPS-Br; PET; pyrolysis; flame retardant; dehalogenation; calcium carbonate
- Identifier
- http://hdl.handle.net/1959.13/33948
- Identifier
- uon:3405
- Identifier
- ISSN:0165-2370
- Language
- eng
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