Pyrolysis of 1,2-Dichloroethane over Ni–Cr Catalyst at Resistive Heating
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Reaction Kinetics, Mechanisms and Catalysis
ISSN: 1878-5190
, E-ISSN: 1878-5204
|
| Вых. Данные |
Год: 2017,
Том: 120,
Номер: 2,
Страницы: 691-701
Страниц
: 11
DOI:
10.1007/s11144-017-1138-6
|
| Ключевые слова |
1,2-Dichloroethane, Carbon corrosion, Carbon nanofibers, Hydrodechlorination, Nichrome, Resistive catalyst |
| Авторы |
Bauman Yuri I.
1
,
Sigaeva Svetlana S.
2
,
Mishakov Ilya V.
1,3
,
Vedyagin Aleksey A.
1,3
,
Tsyrulnikov Pavel G.
2
,
Korneev Denis V.
4
,
Buyanov Roman A.
1
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, pr. Ac. Lavrenteva 5, Novosibirsk, Russia 630090
|
| 2 |
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences, Neftezavodskaya str. 54, Omsk, Russia 644040
|
| 3 |
National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk, Russia 634050
|
| 4 |
State Research Center of Virology and Biotechnology ‘‘Vector’’, Koltsovo, Russia 630559
|
|
Информация о финансировании (2)
|
1
|
Федеральное агентство научных организаций России
|
0303-2016-0014
|
|
2
|
Российский фонд фундаментальных исследований
|
15-33-50724
|
The features of 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 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 fibers growth in accordance with mechanism of carbide cycle was found to be a result of carbon corrosion of resistive Ni–Cr alloy. This process was shown to be conjugated with hydrodechlorination reaction taking place within studied conditions. The decomposition of chlorohydrocarbon goes preferably through the route of C–Cl bond hydrogenolysis when the 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.