Selective Methanation of CO in the Presence of CO2 in Hydrogen-Containing Mixtures on Nickel Catalysts
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Kinetics and Catalysis
ISSN: 0023-1584
, E-ISSN: 1608-3210
|
| Вых. Данные |
Год: 2010,
Том: 51,
Номер: 6,
Страницы: 907-913
Страниц
: 7
DOI:
10.1134/S0023158410060170
|
| Авторы |
Zyryanova M.M.
1,2
,
Snytnikov P.V.
1,2
,
Amosov Yu.I.
1,2
,
Venʹyaminov S.A.
1
,
Golosman E.Z.
3
,
Sobyanin V.A.
1,2
|
| Организации |
| 1 |
Институт катализа им. Г.К. Борескова СО РАН
|
| 2 |
Новосибирский национальный исследовательский государственный университет
|
| 3 |
НИАП-КАТАЛИЗАТОР
|
|
Информация о финансировании (1)
|
1
|
Министерство образования и науки Российской Федерации
|
P185
|
The screening of commercial nickel catalysts for methanation and a series of nickel catalysts supported on CeO2, γ-Al2O3, and ZrO2 in the reaction of selective CO methanation in the presence of CO2 in hydrogen-containing mixtures (1.5 vol % CO, 20 vol % CO2, 10 vol % H2O, and the balance H2) was performed at the flow rate WHSV = 26000 cm3 (g Cat)−1 h−1. It was found that commercial catalytic systems like NKM-2A and NKM-4A (NIAP-07-02) were insufficiently effective for the selective removal of CO to a level of <100 ppm. The most promising catalyst is 2 wt % Ni/CeO2. This catalyst decreased the concentration of CO from 1.5 vol % to 100 ppm in the presence of 20 vol % CO2 in the temperature range of 280–360°C at a selectivity of >40%, and it retained its activity even after contact with air. The minimum outlet CO concentration of 10 ppm at 80% selectivity on a 2 wt % Ni/CeO2 catalyst was reached at a temperature of 300°C.