| (19) |
 |
|
(11) |
EP 0 493 040 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
12.08.1992 Bulletin 1992/33 |
| (43) |
Date of publication A2: |
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01.07.1992 Bulletin 1992/27 |
| (22) |
Date of filing: 20.12.1991 |
|
| (51) |
International Patent Classification (IPC)5: C10G 35/06 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB NL |
| (30) |
Priority: |
20.12.1990 JP 412467/90
|
| (71) |
Applicant: RESEARCH ASSOCIATION FOR
UTILIZATION OF LIGHT OIL |
|
Minato-ku
Tokyo (JP) |
|
| (72) |
Inventors: |
|
- Adachi, Koji
Tokyo (JP)
- Hirabayashi, Kazuo
Yokohama-shi,
Kanagawa-ken (JP)
- Shibata, Shunji
Kawasaki-shi,
Kanagawa-ken (JP)
- Saito, Shunsuke
Yokohama-shi,
Kanagawa-ken (JP)
- Kondoh, Tadami
Ebina-shi,
Kanagawa-ken (JP)
- Iino, Tadaaki
Yokohama-shi,
Kanagawa-ken (JP)
|
| (74) |
Representative: Allam, Peter Clerk et al |
|
LLOYD WISE, TREGEAR & CO.,
Commonwealth House,
1-19 New Oxford Street
London WC1A 1LW
London WC1A 1LW (GB) |
|
| |
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| (54) |
Process for the production of aromatic hydrocarbons from aliphatic hydrocarbons |
(57) Aromatic hydrocarbons are produced by catalytic conversion of aliphatic hydrocarbons
using an aluminogallosilicate catalyst. A feed of the aliphatic hydrocarbon is mixed
with a recycle gas and the mixture is contacted with the catalyst. The resultant conversion
product is separated into a gas phase and a liquid phase containing aromatic hydrocarbons.
The gas phase is separated into a hydrogen-rich gas and a methane- and/or ethane-rich
gas while the liquid phase is separated into an aromatic hydrocarbon-containing product
and a light hydrocarbon-containing gas. At least part of the methane- and/or ethane-rich
gas and the light hydrocarbon-containing gas is recycled as the above recycle gas.
The catalytic conversion is performed while increasing the reaction temperature as
the process proceeds.