Patent US4824445A successfully refreshed from Google Patents.
US4824445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for recycling in a crude oil stabilization installation, which improves the production of liquefied petroleum gas coming from the associated gases
Assignee: Abu Dhabi Gas Industries Ltd
•
Filing: 1988-01-28
•
Granted: 1989-04-25
•
Expires: 2008-01-28
Abstract
Abstract A method for recycling gas in an installation for the stabilization of crude oil (1) containing gas/liquid separation stages (2, 3, 4) whose gas removal pipes (12, 13, 14) are connected to the intake of a gas treatment installation (18) which provides a current of rich gas (19) and a current of poor residual gas (20), characterized in that an adjustable part (21, 22) of the poor residual gas current is injected into the flow of crude oil (8), preferably between the penultimate (3) and last (4) gas/liquid separation stage, of the installation for stabilization of crude oil (1), in order to increase the production of liquified petroleum gas and condensates.
Inventors
- 👤 Ari Minkkinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:53
CPC Classifications
C; C10; C10G; C10G7/00; C10G7/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
108 words
A method for recycling gas in an installation for crude oil stabilization containing several gas/liquid separation stage each connected to the following stage, traversed in series by a flow of crude oil from the first to the last stage and each provided with a gas removal pipe connected to the intake of a gas treatment installation which provides a current of rich gas and a current of poor residual gas, characterized in that an adjustable part of said current of poor residual gas is injected into the flow of crude oil upstream of at least one of the gas/liquid separation stages of the installation for crude oil stabilization.
Claim 2
Independent Claim
108 words
A method for recycling gas in an installation for crude oil stabilization containing several gas/liquid separation stage each connected to the following stage, traversed in series by a flow of crude oil from the first to the last stage and each provided with a gas removal pipe connected to the intake of a gas treatment installation which provides a current of rich gas and a current of poor residual gas, characterized in that an adjustable part of said current of poor residual gas is injected into the flow of crude oil upstream of at least one of the gas/liquid separation stages of the installation for crude oil stabilization.
Claim 3
Dependent Claim
34 words
The recycling method in accordance with claim 1, wherein the injection of poor residual gas is carried out between the penultimate and the last gas/liquid separation stage of the installation for crude oil stabilization.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |