US3298949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating natural gas streams
Assignee: Mobil Oil AS
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Filing: 1963-10-21
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Granted: 1967-01-17
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Murrell D Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:40
CPC Classifications
C; C10; C10G; C10G5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A PROCESS FOR TREATING A NATURAL GAS STREAM PRODUCED FROM A SUBTERRANEAN RESERVOIR AT HIGH PRESSURE AND WHICH GAS CONTAINS A HIGH CONCENTRATION OF CARBON DIOXIDE COMPRISING THE STEPS OF; (A) INTERMIXING AMMONIA WITH THE HIGH PRESSURE GAS STREAM, (B) CONTACTING THE HIGH PRESSURE GAS STREAM AND AMMONIA UNDER REACTION CONDITION SUCH THAT SOLID MATERIALS INCLUDING UREA ARE FORMED BY THE REACTION OF AMMONIA WITH THE CARBON DIOXIDE IN THE GAS STREAM, (C) SEPARATING THE HIGH PRESSURE GAS STREAM WITH A REDUCED CARBON DIOXIDE CONTENT FROM THE RESULTING SOLID MATERIALS, (D) SEPARATING UREA FROM SAID SOLID MATERIALS, (E) INTERMIXING UREA SEPARATED FROM THE SOLID MATERIALS WITH THE SEPARATED GAS STREAM, (F) CONTACTING THE UREA AND THE SEPARATED GAS STREAM UNDER REACTION CONDITIONS SUCH THAT CRYSTALLINE ADDUCTS OF UREA WITH STRAIGHT-CHAIN ALIPHATIC HYDROCARBONS HAVING AT LEAST THREE CARBON ATOMS ARE FORMED, (G) SEPARATING THE HIGH PRESSURE GAS STREAM WITH A REDUCED CONTENT OF STRAIGHT-CHAIN ALIPHATIC HYDROCARBONS FROM THE CRYSTALLINE ADDUCTS, AND (H) RECOVERING THE HYDROCARBONS FROM THE CRYSTALLINE ADDUCTS.
Claim 2
Dependent Claim
168 words
A PROCESS FOR TREATING A NATURAL GAS STREAM PRODUCED FROM A SUBTERRANEAN RESERVOIR AT HIGH PRESSURE AND WHICH GAS CONTAINS A HIGH CONCENTRATION OF CARBON DIOXIDE COMPRISING THE STEPS OF; (A) INTERMIXING AMMONIA WITH THE HIGH PRESSURE GAS STREAM, (B) CONTACTING THE HIGH PRESSURE GAS STREAM AND AMMONIA UNDER REACTION CONDITION SUCH THAT SOLID MATERIALS INCLUDING UREA ARE FORMED BY THE REACTION OF AMMONIA WITH THE CARBON DIOXIDE IN THE GAS STREAM, (C) SEPARATING THE HIGH PRESSURE GAS STREAM WITH A REDUCED CARBON DIOXIDE CONTENT FROM THE RESULTING SOLID MATERIALS, (D) SEPARATING UREA FROM SAID SOLID MATERIALS, (E) INTERMIXING UREA SEPARATED FROM THE SOLID MATERIALS WITH THE SEPARATED GAS STREAM, (F) CONTACTING THE UREA AND THE SEPARATED GAS STREAM UNDER REACTION CONDITIONS SUCH THAT CRYSTALLINE ADDUCTS OF UREA WITH STRAIGHT-CHAIN ALIPHATIC HYDROCARBONS HAVING AT LEAST THREE CARBON ATOMS ARE FORMED, (G) SEPARATING THE HIGH PRESSURE GAS STREAM WITH A REDUCED CONTENT OF STRAIGHT-CHAIN ALIPHATIC HYDROCARBONS FROM THE CRYSTALLINE ADDUCTS, AND (H) RECOVERING THE HYDROCARBONS FROM THE CRYSTALLINE ADDUCTS.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |