FIELD: chemistry.
SUBSTANCE: method of producing a catalyst is described, comprising the following steps: (a) extruding a mixture that contains zeolite and alumina or alumina hydrate as a binder, (b) calcining the extrudate produced in step (a), (c) treating extrudate produced in step (b) calcined with steam, (d) applying the phosphorus-containing compound to the steam-treated extrudate from step (c), and (e) calcining the phosphorus-modified extrudate from step (d), the phosphorus mass fraction in the produced catalyst after step (e) is from 0.8 to 2.5 wt %. The invention also relates to a catalyst for the conversion of oxygenates to olefins, a method of producing olefins from oxygenates, and the use of the catalyst for converting oxygenates to olefins.
EFFECT: extended service life with unchanged selectivity and increased conversion.
18 cl, 7 dwg, 2 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| MODIFIED CATALYST FOR CONVERTING OXYGENATES INTO OLEFINS | 2012 |
|
RU2557244C2 |
| IMPROVED METHOD OF PRODUCING ZEOLITE-BASED CATALYST FOR CONVERTING METHANOL INTO OLEFINS | 2012 |
|
RU2563648C2 |
| METHOD OF PRODUCING ZEOLITE-BASED CATALYST FOR CONVERTING METHANOL INTO OLEFINS | 2012 |
|
RU2563649C2 |
| CATALYST FOR CATALYTIC CRACKING OF HYDROCARBON, USED IN OBTAINING LIGHT OLEFIN, AND METHOD OF OBTAINING THEREOF | 2009 |
|
RU2494809C2 |
| METHOD OF CONVERTING HYDROCARBONS INTO OLEFINS AND AROMATIC HYDROCARBONS AND METHOD OF PREPARING CATALYTIC COMPOSITION FOR IMPLEMENTATION THEREOF | 1998 |
|
RU2199573C2 |
| METHOD OF PRODUCING ZEOLITE-BASED CATALYSTS FOR CONVERTING OXYGENATES INTO LOWER OLEFINS | 2011 |
|
RU2548916C2 |
| CONTINUOUS METHOD FOR SELECTIVE CONVERSION OF OXYGENATE TO PROPYLENE USING MOVING BED TECHNIQUE AND HYDROTHERMALLY STABILISED BIFUNCTIONAL CATALYST SYSTEM | 2006 |
|
RU2409538C2 |
| SPHERICAL CATALYSTS FOR CONVERTING HYDROCARBONS INTO LIGHT OLEFINS | 2003 |
|
RU2307863C2 |
| METHOD OF OBTAINING OLEFINS | 2010 |
|
RU2554511C2 |
| USE OF ZEOLITE-BASED CATALYST FOR CONVERTING OXYGEN-CONTAINING COMPOUNDS TO LOWER OLEFINS, AS WELL AS METHOD OF PRODUCING LOWER OLEFINS | 2007 |
|
RU2422418C2 |
