Pyrolysis of 1,2-dichloroethane over Ni–Cr catalyst at resistive heating

Yuri I. Bauman, Svetlana S. Sigaeva, Ilya V. Mishakov, Aleksey A. Vedyagin, Pavel G. Tsyrulnikov, Denis V. Korneev, Roman A. Buyanov

Результат исследований: Материалы для журналаСтатья

7 Цитирования (Scopus)

Выдержка

The features of the catalytic pyrolysis of chlorohydrocarbons over resistive Ni–Cr alloy were studied using 1,2-dichloroethane as a model substrate. The heating of the catalyst was provided by a direct supply of current on nichrome spiral wire. Such parameters as the temperature of spiral wire (550–700 °C), hydrogen concentration (0–60 vol%) and preliminary activation conditions (acidic or oxidative-reductive treatment of wire surface) were varied in the study. The formation of dispersive nickel particles (up to 0.5 μm in size) catalyzing carbon fiber growth in accordance with the mechanism of carbide cycle was found to be a result of the carbon corrosion of the resistive Ni–Cr alloy. This process was shown to be conjugated with hydrodechlorination taking place within the studied conditions. The decomposition of chlorohydrocarbon goes preferably through the route of C–Cl bond hydrogenolysis when hydrogen is absent from the reaction mixture. Ethylene was found to be the main gas-phase product. The addition of hydrogen into the reaction mixture leads to the hydrogenation of ethylene with the formation of ethane and increases the amount of deposited carbon, which is subjected to partial hydrogenation with methane formation.

Язык оригиналаАнглийский
Страницы (с-по)1-11
Число страниц11
ЖурналReaction Kinetics, Mechanisms and Catalysis
Том120
Номер выпуска2
DOI
СостояниеПринято/в печати - 17 янв 2017

Отпечаток

pyrolysis
Hydrogen
Pyrolysis
wire
Wire
Heating
catalysts
Catalysts
Hydrogenation
hydrogenation
heating
Ethylene
ethylene
hydrogen
Carbon
Nichrome (trademark)
hydrogenolysis
Hydrogenolysis
Ethane
carbon

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Цитировать

Bauman, Y. I., Sigaeva, S. S., Mishakov, I. V., Vedyagin, A. A., Tsyrulnikov, P. G., Korneev, D. V., & Buyanov, R. A. (Принято в печать). Pyrolysis of 1,2-dichloroethane over Ni–Cr catalyst at resistive heating. Reaction Kinetics, Mechanisms and Catalysis, 120(2), 1-11. https://doi.org/10.1007/s11144-017-1138-6

Pyrolysis of 1,2-dichloroethane over Ni–Cr catalyst at resistive heating. / Bauman, Yuri I.; Sigaeva, Svetlana S.; Mishakov, Ilya V.; Vedyagin, Aleksey A.; Tsyrulnikov, Pavel G.; Korneev, Denis V.; Buyanov, Roman A.

В: Reaction Kinetics, Mechanisms and Catalysis, Том 120, № 2, 17.01.2017, стр. 1-11.

Результат исследований: Материалы для журналаСтатья

Bauman, Yuri I. ; Sigaeva, Svetlana S. ; Mishakov, Ilya V. ; Vedyagin, Aleksey A. ; Tsyrulnikov, Pavel G. ; Korneev, Denis V. ; Buyanov, Roman A. / Pyrolysis of 1,2-dichloroethane over Ni–Cr catalyst at resistive heating. В: Reaction Kinetics, Mechanisms and Catalysis. 2017 ; Том 120, № 2. стр. 1-11.
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abstract = "The features of the catalytic pyrolysis of chlorohydrocarbons over resistive Ni–Cr alloy were studied using 1,2-dichloroethane as a model substrate. The heating of the catalyst was provided by a direct supply of current on nichrome spiral wire. Such parameters as the temperature of spiral wire (550–700 °C), hydrogen concentration (0–60 vol{\%}) and preliminary activation conditions (acidic or oxidative-reductive treatment of wire surface) were varied in the study. The formation of dispersive nickel particles (up to 0.5 μm in size) catalyzing carbon fiber growth in accordance with the mechanism of carbide cycle was found to be a result of the carbon corrosion of the resistive Ni–Cr alloy. This process was shown to be conjugated with hydrodechlorination taking place within the studied conditions. The decomposition of chlorohydrocarbon goes preferably through the route of C–Cl bond hydrogenolysis when hydrogen is absent from the reaction mixture. Ethylene was found to be the main gas-phase product. The addition of hydrogen into the reaction mixture leads to the hydrogenation of ethylene with the formation of ethane and increases the amount of deposited carbon, which is subjected to partial hydrogenation with methane formation.",
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AU - Bauman, Yuri I.

AU - Sigaeva, Svetlana S.

AU - Mishakov, Ilya V.

AU - Vedyagin, Aleksey A.

AU - Tsyrulnikov, Pavel G.

AU - Korneev, Denis V.

AU - Buyanov, Roman A.

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N2 - The features of the catalytic pyrolysis of chlorohydrocarbons over resistive Ni–Cr alloy were studied using 1,2-dichloroethane as a model substrate. The heating of the catalyst was provided by a direct supply of current on nichrome spiral wire. Such parameters as the temperature of spiral wire (550–700 °C), hydrogen concentration (0–60 vol%) and preliminary activation conditions (acidic or oxidative-reductive treatment of wire surface) were varied in the study. The formation of dispersive nickel particles (up to 0.5 μm in size) catalyzing carbon fiber growth in accordance with the mechanism of carbide cycle was found to be a result of the carbon corrosion of the resistive Ni–Cr alloy. This process was shown to be conjugated with hydrodechlorination taking place within the studied conditions. The decomposition of chlorohydrocarbon goes preferably through the route of C–Cl bond hydrogenolysis when hydrogen is absent from the reaction mixture. Ethylene was found to be the main gas-phase product. The addition of hydrogen into the reaction mixture leads to the hydrogenation of ethylene with the formation of ethane and increases the amount of deposited carbon, which is subjected to partial hydrogenation with methane formation.

AB - The features of the catalytic pyrolysis of chlorohydrocarbons over resistive Ni–Cr alloy were studied using 1,2-dichloroethane as a model substrate. The heating of the catalyst was provided by a direct supply of current on nichrome spiral wire. Such parameters as the temperature of spiral wire (550–700 °C), hydrogen concentration (0–60 vol%) and preliminary activation conditions (acidic or oxidative-reductive treatment of wire surface) were varied in the study. The formation of dispersive nickel particles (up to 0.5 μm in size) catalyzing carbon fiber growth in accordance with the mechanism of carbide cycle was found to be a result of the carbon corrosion of the resistive Ni–Cr alloy. This process was shown to be conjugated with hydrodechlorination taking place within the studied conditions. The decomposition of chlorohydrocarbon goes preferably through the route of C–Cl bond hydrogenolysis when hydrogen is absent from the reaction mixture. Ethylene was found to be the main gas-phase product. The addition of hydrogen into the reaction mixture leads to the hydrogenation of ethylene with the formation of ethane and increases the amount of deposited carbon, which is subjected to partial hydrogenation with methane formation.

KW - 1,2-Dichloroethane

KW - Carbon corrosion

KW - Carbon nanofibers

KW - Hydrodechlorination

KW - Nichrome

KW - Resistive catalyst

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