FIELD: petrochemical processes.
SUBSTANCE: process comprises continuous-mode alkylation of benzene (20-25%) with α-olefins, in particular C8-C14 fraction (70-80%), in presence of catalyst complex (1.5-2%) at elevated temperature. Alkylate is neutralized and washed to remove catalyst complex, after which rectified to isolate desired product. Before alkylation, benzene and α-olefins are combined and azeotropically dried. Rectification is carried out at least in two steps and bottom temperature in any step is the same as boiling temperature of α-olefins and pressure in each subsequent step is below pressure of preceding step. Plant for alkylation of benzene with α-olefins is also disclosed.
EFFECT: increased conversion of benzene and increased yield of desired product.
6 cl, 1 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR PRODUCING LOWER ALKYLBENZOLS | 0 |
|
SU1305151A1 |
PROCESS OF PRODUCTION OF LOW COLD-TEST BASIS FOR SYNTHETIC LUBRICATING OIL | 2001 |
|
RU2184768C1 |
PROCESS FOR PREPARING SUBSTRATE OF LOW-SOLIDIFYING SYNTHETIC MOTOR OIL | 1992 |
|
RU2019560C1 |
METHOD FOR TREATMENT OF ALPHA-OLEFINS, METHOD FOR TREATMENT OF HEXENE-1 AND UNIT FOR ITS REALIZATION | 2003 |
|
RU2254318C1 |
PROCESS FOR PRODUCING ALKYLAROMATIC COMPOUNDS | 0 |
|
SU958404A1 |
0 |
|
SU338517A1 | |
METHOD OF ISOPROPYLBENZENE PRODUCTION | 0 |
|
SU789463A1 |
METHOD OF ALLOCATION OF PERFLUOROBENZENE FROM BENZENE-PERFLUOROBENZENE BIASETROPIC MIXTURE | 2016 |
|
RU2618534C1 |
METHOD OF PRODUCING LOWEST ALKYLBENZENES | 0 |
|
SU789464A1 |
ETHYLBENZENE PRODUCTION PROCESS | 2004 |
|
RU2267476C1 |
Authors
Dates
2005-07-10—Published
2003-12-30—Filed