Conjugation effects in ethane oxidation under the conditions of oxidative coupling of methane
Ethane conversion under the conditions of oxidative coupling of methane (OCM) has been investigated. In an empty reactor above 800°C, ethane oxidation occurs at a higher rate, and its main product is carbon monoxide. In the presence of NaWMn/SiO2 catalyst the rate of ethane oxidation noticeably decr...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | Russian |
| Published: |
MIREA - Russian Technological University
2014-12-01
|
| Series: | Тонкие химические технологии |
| Subjects: | |
| Online Access: | https://www.finechem-mirea.ru/jour/article/view/422 |
| _version_ | 1797882122664411136 |
|---|---|
| author | V. I. Lomonosov T. R. Usmanov M. Yu. Sinev S. N. Antonyuk |
| author_facet | V. I. Lomonosov T. R. Usmanov M. Yu. Sinev S. N. Antonyuk |
| author_sort | V. I. Lomonosov |
| collection | DOAJ |
| description | Ethane conversion under the conditions of oxidative coupling of methane (OCM) has been investigated. In an empty reactor above 800°C, ethane oxidation occurs at a higher rate, and its main product is carbon monoxide. In the presence of NaWMn/SiO2 catalyst the rate of ethane oxidation noticeably decreases, and ethylene becomes the main product of the reaction. Thus, it is demonstrated that the catalyst, on one hand, is an effective inhibitor of unselective gas phase oxidation processes, and on the other hand, it substantially changes the hydrocarbon conversion routes. The complex kinetic conjugation during ethane oxidation in the presence of an excess of methane in the reaction mixture is observed. In the case of homogeneous ethane oxidation, methane acts as the gas-phase oxidation inhibitor, presumably by reducing chain reactions contribution to the overall reaction rate. On the contrary, during the oxidation of a methane-ethane mixture over NaWMn/SiO2 catalyst, a strong mutual effect of the hydrocarbon components on the rate and direction of their transformation is observed. |
| first_indexed | 2024-04-10T03:29:57Z |
| format | Article |
| id | doaj.art-93499243b82f4539a344e27f9a3c713e |
| institution | Directory Open Access Journal |
| issn | 2410-6593 2686-7575 |
| language | Russian |
| last_indexed | 2024-04-10T03:29:57Z |
| publishDate | 2014-12-01 |
| publisher | MIREA - Russian Technological University |
| record_format | Article |
| series | Тонкие химические технологии |
| spelling | doaj.art-93499243b82f4539a344e27f9a3c713e2023-03-13T07:25:35ZrusMIREA - Russian Technological UniversityТонкие химические технологии2410-65932686-75752014-12-01965561416Conjugation effects in ethane oxidation under the conditions of oxidative coupling of methaneV. I. Lomonosov0T. R. Usmanov1M. Yu. Sinev2S. N. Antonyuk3N.N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 119991M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571Ethane conversion under the conditions of oxidative coupling of methane (OCM) has been investigated. In an empty reactor above 800°C, ethane oxidation occurs at a higher rate, and its main product is carbon monoxide. In the presence of NaWMn/SiO2 catalyst the rate of ethane oxidation noticeably decreases, and ethylene becomes the main product of the reaction. Thus, it is demonstrated that the catalyst, on one hand, is an effective inhibitor of unselective gas phase oxidation processes, and on the other hand, it substantially changes the hydrocarbon conversion routes. The complex kinetic conjugation during ethane oxidation in the presence of an excess of methane in the reaction mixture is observed. In the case of homogeneous ethane oxidation, methane acts as the gas-phase oxidation inhibitor, presumably by reducing chain reactions contribution to the overall reaction rate. On the contrary, during the oxidation of a methane-ethane mixture over NaWMn/SiO2 catalyst, a strong mutual effect of the hydrocarbon components on the rate and direction of their transformation is observed.https://www.finechem-mirea.ru/jour/article/view/422oxidative coupling of methane, с<sub>1</sub>-с<sub>2</sub> hydrocarbon oxidation, kinetic, heterogeneous-homogeneous processes, conjugation effects. |
| spellingShingle | V. I. Lomonosov T. R. Usmanov M. Yu. Sinev S. N. Antonyuk Conjugation effects in ethane oxidation under the conditions of oxidative coupling of methane Тонкие химические технологии oxidative coupling of methane, с<sub>1</sub>-с<sub>2</sub> hydrocarbon oxidation, kinetic, heterogeneous-homogeneous processes, conjugation effects. |
| title | Conjugation effects in ethane oxidation under the conditions of oxidative coupling of methane |
| title_full | Conjugation effects in ethane oxidation under the conditions of oxidative coupling of methane |
| title_fullStr | Conjugation effects in ethane oxidation under the conditions of oxidative coupling of methane |
| title_full_unstemmed | Conjugation effects in ethane oxidation under the conditions of oxidative coupling of methane |
| title_short | Conjugation effects in ethane oxidation under the conditions of oxidative coupling of methane |
| title_sort | conjugation effects in ethane oxidation under the conditions of oxidative coupling of methane |
| topic | oxidative coupling of methane, с<sub>1</sub>-с<sub>2</sub> hydrocarbon oxidation, kinetic, heterogeneous-homogeneous processes, conjugation effects. |
| url | https://www.finechem-mirea.ru/jour/article/view/422 |
| work_keys_str_mv | AT vilomonosov conjugationeffectsinethaneoxidationundertheconditionsofoxidativecouplingofmethane AT trusmanov conjugationeffectsinethaneoxidationundertheconditionsofoxidativecouplingofmethane AT myusinev conjugationeffectsinethaneoxidationundertheconditionsofoxidativecouplingofmethane AT snantonyuk conjugationeffectsinethaneoxidationundertheconditionsofoxidativecouplingofmethane |