FIELD: chemistry.
SUBSTANCE: invention relates to catalytic compositions for trapping nitrogen oxides contained in a gas stream. The composition is based on aluminium oxide and contains cerium oxide in amount of 2-15 wt % and barium oxide in amount of 10-25 wt %, wherein the aluminate compound BaAl2O4 in the composition is not detected via X-ray diffraction after firing the composition in air at temperature 700°C for 2 hours. The invention also discloses methods of preparing the catalytic composition.
EFFECT: invention provides high thermal stability of the composition in a wide temperature range.
1 dwg, 1 tbl, 7 ex
| Title |
Year |
Author |
Number |
| COMPOSITION BASED ON OXIDES OF ZIRCONIUM, CERIUM, NIOBIUM AND TIN, PREPARATION METHODS AND USE IN CATALYSIS |
2014 |
- Bisson Lor Zhann Simon
- Zhorzhe Koelo Markesh Ruj Migel
- Okampo Faben
- Arl Virzhini
- Ernandes Zhyulen
|
RU2673295C2 |
| COMPOSITION BASED ON OXIDES OF ZIRCONIUM, CERIUM, LANTHANUM AND YTTRIUM, GADOLINIUM OR SAMARIUM WITH HIGH SPECIFIC SURFACE AND REDUCING ABILITY, METHOD OF ITS PRODUCTION AND APPLICATION AS CATALYST |
2007 |
- Ljarshe Oliv'E
- Verd'E Stefan
- Roar Ehmmanjuehl'
|
RU2404855C2 |
| NANOMETRIC CERIUM OXIDE-BASED COMPOSITION ON HIGH REDUCING POWER SUPPORT, PREPARATION METHOD THEREOF AND USE AS CATALYST |
2007 |
- Fazhardi Frank
- Verd'E Stefan
|
RU2411995C2 |
| ZIRCONIUM OXIDE- AND CERIUM OXIDE BASED COMPOSITION WITH INCREASED REDUCING POWER AND STABLE SPECIFIC SURFACE, METHOD OF ITS PRODUCING AND USING FOR EXHAUST GAS TREATMENT |
2007 |
- Verd'E Stefan
- Ljarshe Oliv'E
- Roar Ehmmanjuehl'
- Pako Bernar
- Takemori Khirofumi
- Suda Eisaku
|
RU2407584C2 |
| CERIUM, ZIRCONIUM AND TUNGSTEN-BASED COMPOSITION, METHOD OF ITS OBTAINING AND APPLICATION IN CATALYSIS |
2011 |
- Ehrnande Zhjul'En
- Roar Ehmmanjuehl'
- Zhorzhe Koehl'O Markesh Ruj
- Kharris Debora Dzhehjn
- Dzhouns Klehr
|
RU2549573C2 |
| COMPOSITION BASED ON CERIUM OXIDE AND ZIRCONIUM OXIDE HAVING SPECIFIC POROSITY, METHOD OF PRODUCTION AND USE IN CATALYSIS |
2010 |
|
RU2509725C2 |
| COMPOSITION BASED ON ZIRCONIUM, CERIUM AND YTTRIUM OXIDES WITH INCREASED RESILIENCE, METHOD OF OBTAINING AND APPLICATION IN CATALYSIS |
2009 |
- Ljarshe Oliv'E
- Roar Ehmmanjuehl'
- Ifra Simon
|
RU2468855C2 |
| MIXED OXIDE BASED ON CERIUM AND ZIRCONIUM |
2017 |
- Jorge Coelho Marques, Rui Miguel
- Ifrah, Simon
- Chabert, Boris
|
RU2753046C2 |
| COMPOSITION, BASED ON OXIDES OF ZIRCONIUM, CERIUM AND OTHER RARE EARTH METAL WITH LOWER REDUCTABILITY TEMPERATURE, METHOD OF OBTAINING AND APPLICATION IN FIELD OF CATALYSIS |
2011 |
- Ifra Simon
- Roar Ehmmanjuehl'
- Ehrnande Zhjul'En
- Denehr Stefan
|
RU2518969C2 |
| METHOD OF PROCESSING GAS, CONTAINING NITROGEN OXIDES (NOx), IN WHICH COMPOSITION, INCLUDING CERIUM OXIDE AND NIOBIUM OXIDE, IS APPLIED AS CATALYST |
2011 |
- Ehrnande Zhjul'En
- Roar Ehmmanjuehl'
- Zhorzhe Koehl'O Markesh Ruj
- Kharris Debora Dzhehjn
- Dzhouns Klehr
|
RU2541070C2 |
