US3001372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of aromatics from liquefied natural gas
Assignee: Conch International Methane Ltd
•
Filing: 1957-12-06
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Granted: 1961-09-26
•
Expires: 1977-12-06
Abstract
No abstract record available.
Inventors
- 👤 Kurata Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:18
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/08; C; C07; C07C; C07C7/00; C07C7/10; C10; C10G; C10G5/00; C10G5/04; C10G2300/00; C10G2300/10; C10G2300/1025; F25J2210/00; F25J2210/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR THE REMOVAL OF AROMATICS AND HIGHER HYDROCARBONS FROM A LIQUEFIED NATURAL GAS COMPRISING THE STEPS OF SCRUBBING THE LIQUEFIED NATURAL GAS WITH A LIQUID HYDROCARBON HAVING AT LEAST 7 CARBON ATOMS AND HAVING A FREEZING POINT TEMPERATURE BELOW THE CRITICAL TEMPERATURE FOR THE NATURAL GAS AND RELATIVELY INSOLUBLE AND IMMISCIBLE WITH THE LIQUEFIED NATURAL GAS AND IN WHICH THE AROMATICS AND HIGHER HYDROCARBONS ARE PREFERENTIALLY SOLUBLE BY COMPARISON WITH THE LIQUEFIED NATURAL GAS, MAINTAINING THE CONDITIONS DURING THE SCRUBBING OPERATION BETWEEN THE CRITICAL TEMPERATURE FOR THE LIQUEFIED NATURAL GAS AND THE FREEZING POINT TEMPERATURE FOR THE SCRUBBING LIQUID AND THE LIQUEFIED NATURAL GAS, AND THEN SEPARATING THE SCRUBBING LIQUID FROM THE REMAINDER.
Claim 2
Dependent Claim
115 words
A PROCESS FOR THE REMOVAL OF AROMATICS AND HIGHER HYDROCARBONS FROM A LIQUEFIED NATURAL GAS COMPRISING THE STEPS OF SCRUBBING THE LIQUEFIED NATURAL GAS WITH A LIQUID HYDROCARBON HAVING AT LEAST 7 CARBON ATOMS AND HAVING A FREEZING POINT TEMPERATURE BELOW THE CRITICAL TEMPERATURE FOR THE NATURAL GAS AND RELATIVELY INSOLUBLE AND IMMISCIBLE WITH THE LIQUEFIED NATURAL GAS AND IN WHICH THE AROMATICS AND HIGHER HYDROCARBONS ARE PREFERENTIALLY SOLUBLE BY COMPARISON WITH THE LIQUEFIED NATURAL GAS, MAINTAINING THE CONDITIONS DURING THE SCRUBBING OPERATION BETWEEN THE CRITICAL TEMPERATURE FOR THE LIQUEFIED NATURAL GAS AND THE FREEZING POINT TEMPERATURE FOR THE SCRUBBING LIQUID AND THE LIQUEFIED NATURAL GAS, AND THEN SEPARATING THE SCRUBBING LIQUID FROM THE REMAINDER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |