Decomposition of Chlorinated Hydrocarbons on Iron-Group Metals Научная публикация
| Журнал |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Вых. Данные | Год: 2001, Том: 42, Номер: 4, Страницы: 543-548 Страниц : 6 DOI: 10.1023/A:1010585808978 | ||||
| Ключевые слова | Nickel; Methanation; Graphite; Cobalt; Hydrocarbon | ||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | Российский фонд фундаментальных исследований | 00-15-97440 |
| 2 | Российский фонд фундаментальных исследований | 00-03-32431 |
Реферат:
The decomposition of 1,2-dichloroethane and chlorobenzene on nickel–alumina, cobalt–alumina, and iron–alumina catalysts at 400–600°C was studied. Thermodynamic calculations demonstrated that the susceptibility of metals to chlorination under exposure to HCl increases in the order Ni < Co < Fe. The addition of hydrogen to the reaction mixture was found to dramatically decrease the rate of carbon deposition in the decomposition of 1,2-dichloroethane because of the intense hydrogenation of intermediates that are graphite precursors. Two fundamentally different reaction paths were found in the degradation of 1,2-dichloroethane: decomposition via a carbide-cycle mechanism with the formation of carbon as the main product (under conditions of a deficiency of hydrogen) and 1,2-dichloroethane hydrodechlorination accompanied by methanation of the formed carbon (under conditions of an excess of hydrogen). The degradation of chlorobenzene diluted with hydrogen in a molar ratio of 1 : 50 was not accompanied by carbon formation on the catalyst. A comparison between the selectivity for reaction products on nickel–alumina and cobalt–alumina catalysts indicated that the former catalyst is more active in the rupture of C–C bonds and in the methanation reaction of deposited carbon, whereas the latter is more favorable for hydrodechlorination. The optimum conditions and thermal regime for efficient and stable operation of the catalysts were found.
Библиографическая ссылка:
Mishakov I.V.
, Chesnokov V.V.
, Buyanov R.A.
, Pakhomov N.A.
Decomposition of Chlorinated Hydrocarbons on Iron-Group Metals
Kinetics and Catalysis. 2001. V.42. N4. P.543-548. DOI: 10.1023/A:1010585808978 WOS Scopus РИНЦ CAPlusCA OpenAlex
Decomposition of Chlorinated Hydrocarbons on Iron-Group Metals
Kinetics and Catalysis. 2001. V.42. N4. P.543-548. DOI: 10.1023/A:1010585808978 WOS Scopus РИНЦ CAPlusCA OpenAlex
Оригинальная:
Мишаков И.В.
, Чесноков В.В.
, Буянов Р.А.
, Пахомов Н.А.
Закономерности разложения хлорпроизводных углеводородов на металлах подгруппы железа
Кинетика и катализ. 2001. Т.42. №4. С.598-603. РИНЦ
Закономерности разложения хлорпроизводных углеводородов на металлах подгруппы железа
Кинетика и катализ. 2001. Т.42. №4. С.598-603. РИНЦ
Даты:
| Поступила в редакцию: | 21 янв. 2000 г. |
| Опубликована в печати: | 1 июл. 2001 г. |
Идентификаторы БД:
| Web of science: | WOS:000171016500019 |
| Scopus: | 2-s2.0-0011953183 |
| РИНЦ: | 13373704 |
| Chemical Abstracts: | 2001:688422 |
| Chemical Abstracts (print): | 136:5651 |
| OpenAlex: | W73621800 |