FIELD: production of poly-metallic catalysts.
SUBSTANCE: Fe is introduced into proposed catalyst by isomorphic substitution into zeolite lattice by hydro-thermal synthesis; then, zeolite is calcined and is transformed into H-form, after which Cu and /or Co is introduced by ion exchange in liquid or solid phase before calcination and activation of specimen at high temperature or by water steam and alkaline treatment. Zeolite has mole ratio Si/T 20-80, where T=Al, Ga, B or Ti. Method of decomposition or reduction of nitrous oxide in waste gases at temperature below 650 K with the use of obtained zeolite. Catalyst produced by this method possesses high conversion of N2O at temperature <623 K and enhanced stability.
EFFECT: enhanced efficiency and stability of catalyst.
20 cl, 4 dwg, 4 tbl, 12 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYSTS FOR TREATING NON-STATIONARY NO EMISSIONS | 2012 |
|
RU2586685C2 |
| CATALYST FOR TREATING NON-STATIONARY NO EMISSIONS | 2010 |
|
RU2582341C2 |
| METHOD OF PREPARING ZEOLITE CATALYSTS, METHOD OF PREPARING ZEOLITES, AND ZEOLITE CATALYSTS | 1998 |
|
RU2240866C2 |
| HYDROCARBON CONVERSION PROCESS, MICRO-MESOPOROUS-STRUCTURE CATALYST FOR ACCOMPLISHMENT THEREOF AND CATALYST PREPARATION PROCESS | 2005 |
|
RU2288034C1 |
| METHOD OF PREPARING CATALYST FOR DECOMPOSING NITROUS OXIDE AND PROCESS OF DECONTAMINATING GAS EMISSIONS CONTAINING NITROUS OXIDE | 2011 |
|
RU2477177C2 |
| SCR CATALYSTS: TRANSITION METAL/ZEOLITE | 2008 |
|
RU2506989C2 |
| METHOD OF REMOVING NO AND NO IN PROCESS OF PRODUCING NITRIC ACID AND APPARATUS FOR REALISING SAID METHOD | 2012 |
|
RU2600753C2 |
| PREPARING CATALYSTS BASED ON BORZEOLITES | 2013 |
|
RU2628080C2 |
| CATALYST AND METHOD FOR HYDROISOMERISATION OF NORMAL C5-C8 HYDROCARBONS USING SAID CATALYST | 2017 |
|
RU2658018C1 |
| REMOVING LAUGHING GAS IN MANUFACTURE OF NITRIC ACID | 2001 |
|
RU2237010C2 |
