FIELD: petrochemical process catalysts.
SUBSTANCE: catalyst constitutes cements formed during heat treatment and depicted by general formula MeO·nAl2O3, where Me is at least one group IIA element and n is number from 1.0 to 6.0, containing modifying component selected from at least one oxide of magnesium, strontium, copper, zinc, indium, chromium, manganese, and strengthening additive: boron and/or phosphorus oxide. The following proportions of components are used, wt %: MeO 10.0-40.0, modifying component 1.0-5.0, boron and/or phosphorus oxide 0.5-5.0, and alumina - the balance. Catalyst is prepared by dry mixing of one group IIA element compounds, aluminum compounds, and strengthening additive followed by mechanochemical treatment on vibromill, molding of catalyst paste, drying, and calcination at 600-1200°C. Modifying additive is incorporated into catalyst by impregnation and succeeding calcination. Method of pyrolysis of hydrocarbon feedstock producing C2-C4-olefins is also described.
EFFECT: increased yield of lower olefins.
3 cl, 2 tbl, 18 ex
| Title | Year | Author | Number |
|---|---|---|---|
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| CATALYST FOR CONVERSION OF METHANOL INTO OLEFIN HYDROCARBONS, PROCESS OF PREPARATION THEREOF, AND A PROCESS OF CONVERSION OF METHANOL INTO OLEFIN HYDROCARBONS | 2005 |
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RU2294799C1 |
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RU2223144C1 |
| PARAFFIN C2-C5-HYDROCARBON CONVERSION CATALYST, METHOD OF PREPARATION THEREOF, AND A METHOD FOR CONVERSION OF PARAFFIN C2-C5-HYDROCARBONS INTO LOWER OLEFINS | 2002 |
|
RU2242279C2 |
| CATALYST FOR LOWERING CONTENT OF BENZENE AND UNSATURATED HYDROCARBONS IN GASOLINE FRACTIONS, METHOD FOR PREPARATION THEREOF, AND A METHOD FOR LOWERING CONTENT OF BENZENE AND UNSATURATED HYDROCARBONS IN GASOLINE FRACTIONS | 2004 |
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RU2271862C1 |
| CATALYST FOR CONVERTING ALIPHATIC C-C-HYDROCARBONS, METHOD FOR PREPARATION THEREOF, AND A METHOD FOR CONVERTING ALIPHATIC C-C-HYDROCARBONS INTO HIGH ANTIKNOCK GASOLINE AND/OR AROMATIC HYDROCARBONS | 2003 |
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| CATALYST FOR PYROLYSIS OF HYDROCARBON MIXTURE C1-C4 AND PREPARATION METHOD THEREOF | 2015 |
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RU2343975C1 |
