US2689875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treatment of high-pressure natural gas streams
Assignee: Phillips Petroleum Co
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Filing: 1951-11-05
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Granted: 1954-09-21
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Expires: 1971-11-05
Abstract
No abstract record available.
Inventors
- 👤 Karl H Hachmuth
- 👤 Robert L Mcintire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:41
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/09; C10; C10G; C10G5/00; C10G5/06; Y; Y10; Y10S; Y10S203/00; Y10S203/19; Y10S62/00; Y10S62/902; Y10S62/905; Y10S62/926
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
A METHOD FOR THE CONTINUOUS DEHYDRATION AND RECOVERY OF CONDENSABLE HYDROCARBONS OF A HIGH PRESSURE NATURAL GAS STREAM COMPRISING COOLING SAID STREAM TO A TEMPERATURE JUST ABOVE THAT OF HYDRATE FORMATION; CONTACTING SAID STREAM WITH A HYDROCARBON REFRIGERANT EXPANDED PRODUCT GAS, THEREBY FORMING HYDRATES IN THE LIQUID PHASE; CONTACTING SAID HYDRATES INDIRECTLY WITH WARM FIELD GAS TO DECOMPOSE THE HYDRATES; REMOVING THE RESULTANT WATER; CONDUCTING AT LEAST A PORTION OF THE HYDROCARBONS SO TREATED TO AN EXPANSION ZONE AND CONDENSING AN ADDITIONAL LIQUID FRACTION THEREIN; AND SEPARATING AND REMOVING THE RESULTANT GASEOUS AND LIQUID HYDROCARBON STREAMS.
Claim 2
Independent Claim
96 words
A METHOD FOR THE CONTINUOUS DEHYDRATION AND RECOVERY OF CONDENSABLE HYDROCARBONS OF A HIGH PRESSURE NATURAL GAS STREAM COMPRISING COOLING SAID STREAM TO A TEMPERATURE JUST ABOVE THAT OF HYDRATE FORMATION; CONTACTING SAID STREAM WITH A HYDROCARBON REFRIGERANT EXPANDED PRODUCT GAS, THEREBY FORMING HYDRATES IN THE LIQUID PHASE; CONTACTING SAID HYDRATES INDIRECTLY WITH WARM FIELD GAS TO DECOMPOSE THE HYDRATES; REMOVING THE RESULTANT WATER; CONDUCTING AT LEAST A PORTION OF THE HYDROCARBONS SO TREATED TO AN EXPANSION ZONE AND CONDENSING AN ADDITIONAL LIQUID FRACTION THEREIN; AND SEPARATING AND REMOVING THE RESULTANT GASEOUS AND LIQUID HYDROCARBON STREAMS.
Claim 3
Dependent Claim
63 words
APPARATUS FOR REMOVING WATER AND LIQUID HYDROCARBONS FROM GASEOUS STREAMS COMPRISING AN ELONGATED UPRIGHT GAS-LIQUID CONTACTING CHAMBER; A HYDRATE MELTING CHAMBER IN COMMUNICATION WITH SAID CONTACTING CHAMBER; A FEED GAS CONDUIT COMMUNICATING WITH THE LOWER PORTION OF SAID CONTACTING CHAMBER; A REFRIGERANT SUPPLY CONDUIT EXTENDING INTO AND COMMUNICATING WITH SAID CONTACTING CHAMBER; A HEAT EXCHANGER IN SAID HYDRATE MELTING CHAMBER; A WATER REMOVAL
Claim 4
Dependent Claim
63 words
APPARATUS FOR REMOVING WATER AND LIQUID HYDROCARBONS FROM GASEOUS STREAMS COMPRISING AN ELONGATED UPRIGHT GAS-LIQUID CONTACTING CHAMBER; A HYDRATE MELTING CHAMBER IN COMMUNICATION WITH SAID CONTACTING CHAMBER; A FEED GAS CONDUIT COMMUNICATING WITH THE LOWER PORTION OF SAID CONTACTING CHAMBER; A REFRIGERANT SUPPLY CONDUIT EXTENDING INTO AND COMMUNICATING WITH SAID CONTACTING CHAMBER; A HEAT EXCHANGER IN SAID HYDRATE MELTING CHAMBER; A WATER REMOVAL
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) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |