FIELD: petrochemical processes.
SUBSTANCE: feedstock olefins are submitted to oligomerization in contact with zeolite oligomerization catalyst and C4-hydrocarbons isolated from resulting products are then aromatized on zeolite aromatization catalyst. Hydrogen-containing dry gas recovered from aromatization products is used for oligomerization-preceding selective hydrogenation of butadiene in feedstock to give butylene-enriched starting material.
EFFECT: prolonged catalyst lifetime.
3 cl, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING H-OCTANE GASOLINE COMPONENT CONTAINING METHYL-TERT-BUTYL AND METHYL-TERT-AMYL ETHERS | 2003 |
|
RU2236396C1 |
| HIGH ANTI-KNOCK GASOLINE PRODUCTION PROCESS AND APPARATUS FOR CARRYING OUT THE PROCESS (VERSIONS) | 2001 |
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RU2186829C1 |
| METHOD OF PRODUCING HIGH-ANTIKNOCK GASOLINE WITH LOW BENZENE LEVEL (OPTIONS) | 2002 |
|
RU2213124C1 |
| METHOD OF PROCESSING ALIPHATIC C2-C12-HYDROCARBONS INTO AROMATIC HYDROCARBONS OR HIGH-OCTANE GASOLINE | 2000 |
|
RU2175959C2 |
| METHOD OF SYNTHESIS OF AROMATIC HYDROCARBON FROM C-C-ALIPHATIC HYDROCARBONS | 2000 |
|
RU2185359C2 |
| LOWER OLEFIN OLIGOMERIZATION PROCESS | 1998 |
|
RU2135547C1 |
| METHOD OF PROCESSING ALIPHATIC C - C-HYDROCARBONS INTO PRODUCTS ENRICHED BY AROMATIC HYDROCARBONS | 1998 |
|
RU2138538C1 |
| AROMATIC HYDROCARBON PRODUCTION PROCESS | 2004 |
|
RU2277524C1 |
| METHOD OF PREPARING AROMATIC HYDROCARBONS FROM CASTING-HEAD GAS | 1998 |
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RU2139844C1 |
| METHOD OF PRODUCING HIGH-OCTANE GASOLINE OR HIGH-OCTANE GASOLINE AND AROMATIC HYDROCARBONS | 1997 |
|
RU2124553C1 |
