Gas-phase reaction of CCl2F2 (CFC-12) with methane

Md Azhar Uddin; Eric M. Kennedy; Bogdan Z. Dlugogorski

doi:10.1016/S0045-6535(03)00658-1

Gas-phase reaction of CCl₂F₂ (CFC-12) with methane

Md Azhar Uddin, Eric M. Kennedy, Bogdan Z. Dlugogorski

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

14 Citations (Scopus)

Abstract

Gas-phase reaction of CFC-12 (CCl₂F₂) with methane was carried out in a plug flow reactor over the temperature range of 873-1123 K. The major organic halocarbons formed during the reaction were C ₂F₄, C₂H₂F₂, CHClF ₂, CH₃Cl, C₃H₂F₆ and CCl₃F. The formation of all products except C₂H ₂F₂ decreased with temperature, while the selectivity to C₂H₂F₂ (difluoroethylene) increased with temperature and reached ≈80% at 1123 K. Under these reaction conditions, methane acts as hydrogen and carbon source, resulting in the formation of an unsaturated C₂ hydrofluorocarbon from two C₁ precursors.

Original language	English
Pages (from-to)	1189-1191
Number of pages	3
Journal	Chemosphere
Volume	53
Issue number	9
DOIs	https://doi.org/10.1016/S0045-6535(03)00658-1
Publication status	Published - Dec 2003
Externally published	Yes

Keywords

CFC-12
Dehydrohalogenation
Difluoroethylene
Methane

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Chemistry(all)
Pollution
Health, Toxicology and Mutagenesis

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10.1016/S0045-6535(03)00658-1

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title = "Gas-phase reaction of CCl2F2 (CFC-12) with methane",

abstract = "Gas-phase reaction of CFC-12 (CCl2F2) with methane was carried out in a plug flow reactor over the temperature range of 873-1123 K. The major organic halocarbons formed during the reaction were C 2F4, C2H2F2, CHClF 2, CH3Cl, C3H2F6 and CCl3F. The formation of all products except C2H 2F2 decreased with temperature, while the selectivity to C2H2F2 (difluoroethylene) increased with temperature and reached ≈80% at 1123 K. Under these reaction conditions, methane acts as hydrogen and carbon source, resulting in the formation of an unsaturated C2 hydrofluorocarbon from two C1 precursors.",

keywords = "CFC-12, Dehydrohalogenation, Difluoroethylene, Methane",

author = "Uddin, {Md Azhar} and Kennedy, {Eric M.} and Dlugogorski, {Bogdan Z.}",

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AU - Uddin, Md Azhar

AU - Kennedy, Eric M.

AU - Dlugogorski, Bogdan Z.

PY - 2003/12

Y1 - 2003/12

N2 - Gas-phase reaction of CFC-12 (CCl2F2) with methane was carried out in a plug flow reactor over the temperature range of 873-1123 K. The major organic halocarbons formed during the reaction were C 2F4, C2H2F2, CHClF 2, CH3Cl, C3H2F6 and CCl3F. The formation of all products except C2H 2F2 decreased with temperature, while the selectivity to C2H2F2 (difluoroethylene) increased with temperature and reached ≈80% at 1123 K. Under these reaction conditions, methane acts as hydrogen and carbon source, resulting in the formation of an unsaturated C2 hydrofluorocarbon from two C1 precursors.

AB - Gas-phase reaction of CFC-12 (CCl2F2) with methane was carried out in a plug flow reactor over the temperature range of 873-1123 K. The major organic halocarbons formed during the reaction were C 2F4, C2H2F2, CHClF 2, CH3Cl, C3H2F6 and CCl3F. The formation of all products except C2H 2F2 decreased with temperature, while the selectivity to C2H2F2 (difluoroethylene) increased with temperature and reached ≈80% at 1123 K. Under these reaction conditions, methane acts as hydrogen and carbon source, resulting in the formation of an unsaturated C2 hydrofluorocarbon from two C1 precursors.

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KW - Dehydrohalogenation

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KW - Methane

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