| (19) |
 |
|
(11) |
EP 0 156 614 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.08.1987 Bulletin 1987/32 |
| (43) |
Date of publication A2: |
|
02.10.1985 Bulletin 1985/40 |
| (22) |
Date of filing: 19.03.1985 |
|
|
| (84) |
Designated Contracting States: |
|
BE DE FR GB IT NL |
| (30) |
Priority: |
20.03.1984 CA 450003
|
| (71) |
Applicant: GULF CANADA LIMITED |
|
() |
|
| (72) |
Inventors: |
|
- Woods, Hanbury John
()
- Souhrada, Frank
()
- Dymock, Kenneth Robert
()
|
|
| |
|
| (54) |
Coking residuum in the presence of hydrogen donor |
(57) The present invention provides a method for treating heavy hydrocarbonaceous oil
feedstock, comprising:
(a) heating said feedstock to a temperature from 420°C to 500°C in a heating zone
to form a reaction mass;
(b) maintaining said reaction in a coking zone at a temperature from 400°C to 490°C
and pressure from 101 kPa to 600 kPa for a residence time of from 5 to 60 minutes;
and
(c) recovering liquid hydrocarbon products and coke from said coking zone.
characterised in that: prior to said heating step, said heavy hydrocarbonaceous feedstock
is mixed with a hydrogen-donating hydrocarbon diluent boiling in a range from 180°C
to 400°C at atmospheric pressure in a ratio to said feedstock of .02:1 to 1.0:1 by
weight in a mixing zone.