Production of harmful materials from synthetic polymers under pyrolysis

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9 Citations (Scopus)

Abstract

Polyethylene samples were pyrolyzed together with small percentages of poly(vinyl chloride), poly(vinylbenzyl chloride) or poly(chlorostyrene) in a horizontal quartz furnace. Nitrogen was used as a carrier gas, and the trapped volatile pyrolysis products were analysed by GC/MS. The evolution of polynuclear aromatic hydrocarbons (PAHs) and chlorine-containing pyrolysis products was studied in the temperature range 400-1000 °C. The chlorine atom is cleaved from poly(vinylbenzyl chloride) and poly(chlorostyrene) under pyrolysis; in addition, depolymerization and side-group detachment occur. Hydrogen chloride and chlorine formed from the chlorine-containing part of the sample influence the thermal decomposition reactions of polyethylene. The effect of these reactive species is modified by iron or copper. Hydrogen chloride formed by elimination from PVC depresses the formation of PAHs more effectively in the presence of iron. Chlorine from poly(vinylbenzyl chloride) increases the production of PAHs in the presence of copper.

Original languageEnglish
Pages (from-to)7-18
Number of pages12
JournalJournal of Analytical and Applied Pyrolysis
Volume32
Issue numberC
DOIs
Publication statusPublished - 1995

Fingerprint

Chlorine
pyrolysis
chlorine
Polymers
Pyrolysis
Aromatic hydrocarbons
Polycyclic Aromatic Hydrocarbons
chlorides
polymers
Chlorides
hydrogen chlorides
Hydrochloric Acid
hydrocarbons
Polyethylene
Polyethylenes
polyethylenes
Copper
Iron
Vinyl Chloride
iron

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Analytical Chemistry
  • Physical and Theoretical Chemistry

Cite this

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title = "Production of harmful materials from synthetic polymers under pyrolysis",
abstract = "Polyethylene samples were pyrolyzed together with small percentages of poly(vinyl chloride), poly(vinylbenzyl chloride) or poly(chlorostyrene) in a horizontal quartz furnace. Nitrogen was used as a carrier gas, and the trapped volatile pyrolysis products were analysed by GC/MS. The evolution of polynuclear aromatic hydrocarbons (PAHs) and chlorine-containing pyrolysis products was studied in the temperature range 400-1000 °C. The chlorine atom is cleaved from poly(vinylbenzyl chloride) and poly(chlorostyrene) under pyrolysis; in addition, depolymerization and side-group detachment occur. Hydrogen chloride and chlorine formed from the chlorine-containing part of the sample influence the thermal decomposition reactions of polyethylene. The effect of these reactive species is modified by iron or copper. Hydrogen chloride formed by elimination from PVC depresses the formation of PAHs more effectively in the presence of iron. Chlorine from poly(vinylbenzyl chloride) increases the production of PAHs in the presence of copper.",
keywords = "Additive effect, Gas chromatography, Mass spectrometry, Poly(chlorostyrene), Poly(vinylbenzyl chloride), Polyethylene, PVC, Pyrolysis",
author = "M. Blazso",
year = "1995",
doi = "10.1016/0165-2370(94)00844-Q",
language = "English",
volume = "32",
pages = "7--18",
journal = "Journal of Analytical and Applied Pyrolysis",
issn = "0165-2370",
publisher = "Elsevier",
number = "C",

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TY - JOUR

T1 - Production of harmful materials from synthetic polymers under pyrolysis

AU - Blazso, M.

PY - 1995

Y1 - 1995

N2 - Polyethylene samples were pyrolyzed together with small percentages of poly(vinyl chloride), poly(vinylbenzyl chloride) or poly(chlorostyrene) in a horizontal quartz furnace. Nitrogen was used as a carrier gas, and the trapped volatile pyrolysis products were analysed by GC/MS. The evolution of polynuclear aromatic hydrocarbons (PAHs) and chlorine-containing pyrolysis products was studied in the temperature range 400-1000 °C. The chlorine atom is cleaved from poly(vinylbenzyl chloride) and poly(chlorostyrene) under pyrolysis; in addition, depolymerization and side-group detachment occur. Hydrogen chloride and chlorine formed from the chlorine-containing part of the sample influence the thermal decomposition reactions of polyethylene. The effect of these reactive species is modified by iron or copper. Hydrogen chloride formed by elimination from PVC depresses the formation of PAHs more effectively in the presence of iron. Chlorine from poly(vinylbenzyl chloride) increases the production of PAHs in the presence of copper.

AB - Polyethylene samples were pyrolyzed together with small percentages of poly(vinyl chloride), poly(vinylbenzyl chloride) or poly(chlorostyrene) in a horizontal quartz furnace. Nitrogen was used as a carrier gas, and the trapped volatile pyrolysis products were analysed by GC/MS. The evolution of polynuclear aromatic hydrocarbons (PAHs) and chlorine-containing pyrolysis products was studied in the temperature range 400-1000 °C. The chlorine atom is cleaved from poly(vinylbenzyl chloride) and poly(chlorostyrene) under pyrolysis; in addition, depolymerization and side-group detachment occur. Hydrogen chloride and chlorine formed from the chlorine-containing part of the sample influence the thermal decomposition reactions of polyethylene. The effect of these reactive species is modified by iron or copper. Hydrogen chloride formed by elimination from PVC depresses the formation of PAHs more effectively in the presence of iron. Chlorine from poly(vinylbenzyl chloride) increases the production of PAHs in the presence of copper.

KW - Additive effect

KW - Gas chromatography

KW - Mass spectrometry

KW - Poly(chlorostyrene)

KW - Poly(vinylbenzyl chloride)

KW - Polyethylene

KW - PVC

KW - Pyrolysis

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U2 - 10.1016/0165-2370(94)00844-Q

DO - 10.1016/0165-2370(94)00844-Q

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AN - SCOPUS:0029290818

VL - 32

SP - 7

EP - 18

JO - Journal of Analytical and Applied Pyrolysis

JF - Journal of Analytical and Applied Pyrolysis

SN - 0165-2370

IS - C

ER -