Hydrocarbon Specificity in the Selective Catalytic Reduction of NOx over Cu-ZSM-5 and Co-ZSM-5 Catalysts
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Reaction Kinetics and Catalysis Letters
ISSN: 0133-1736
, E-ISSN: 1588-2837
|
| Вых. Данные |
Год: 1998,
Том: 64,
Номер: 1,
Страницы: 185-191
Страниц
: 7
DOI:
10.1007/BF02475387
|
| Ключевые слова |
Cation-exchanged ZSM-5, Coordination relaxation, Intermediates, Mechanism, Nitrogen oxides, Reactivity of surface nitrates, Reduction by hydrocarbons |
| Авторы |
Sadykov V.A.
1
,
Beloshapkin S.A.
2
,
Paukshtis E.A.
1
,
Alikina G.M.
1
,
Kochubei D.I.
1
,
Degtyarev S.P.
1
,
Bulgakov N.N.
1
,
Veniaminov S.A.
1
,
Netyaga V.
2
,
Bunina R.V.
1
,
Kharlanov A.N.
3
,
Lunina E.V.
3
,
Lunin V.V.
3
,
Matyshak V.A.
4
,
Rozovskii A.Ya.
5
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
|
| 2 |
Novosibirsk State University, Novosibirsk 630090, Russia
|
| 3 |
Lomonosov Moscow State University, Chemical Department, Moscow 119899, Russia,
|
| 4 |
Semenov Institute of Chemical Physics RAN, Moscow 117334, Russia
|
| 5 |
Topchiev Institute of Petrochemical Synthesis RAN, Moscow 117912, Russia
|
|
Transformation of surface nitrates under CH4 (CH4+O2) was found to ensure steady-state activity of Co-ZSM-5 in the selective catalytic reduction of nitrogen oxides by methane (CH4-SCR). For Cu-ZSM-5, such species are mainly converted into NO. Relaxation of the coordination sphere due to oxygen and NO adsorption, stability of C,N-containing intermediates and activation routes of hydrocarbons (methane, propane) were analyzed as factors determining catalytic properties of Cu and Co cations.