Patent US3242682A successfully refreshed from Google Patents.
US3242682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for separation of hydrocarbons
Assignee: Eastman Kodak Co
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Filing: 1963-09-23
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Granted: 1966-03-29
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 John C English
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:26
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0238; C; C07; C07C; C07C7/00; C07C7/04; F25J3/0204; F25J3/0219; F25J3/0233; F25J2200/00; F25J2200/02; F25J2200/74; F25J2205/00; F25J2205/02; F25J2205/04; F25J2210/00; F25J2210/12; F25J2270/00; F25J2270/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A METHOD FOR REMOVING HYDROGEN AND METHANE CONSTITUENTS FROM A GASEOUS FEED MIXTURE COMPRISING HYDROGEN, METHANE, ETHYLENE, ETHANE, PROPYLENE AND PROPANE COMPRISING CONDENSING A SUBSTANTIAL PORTION OF THE FEED MIXTURE, SEPARATING THE RESULTING LIQUID CONDENSATE FROM THE UNCONDENSED PORTION OF THE FEED MIXTURE, EXPANDING THE LIQUID FEED MIXTURE CONDENSATE TO NOT MORE THAN 600 P.S.I.G. AND THEN INTRODUCING IT INTO A FRACTIONATION TOWER, CONDUCTING THE UNCONDENSED FEED MIXTURE TO A LOW TEMPERATURE CONDENSATION SYSTEM, CONDUCTING THE OVERHEAD GASES FROM THE FRACTIONATION TOWER TO THE LOW TEMPERATURE CONDENSATION SYSTEM, CONDENSING SUBSTANTIALLY OF ALL THE ETHANE AND ETHYLENE IN THE UNCONDENSED FEED MIXTURE AND IN THE OVERHEAD GASES IN THE LOW TEMPERATURE CONDENSATION SYSTEM, INTRODUCING THE CONDENSATE FROM THE LOW TEMPERATURE CONDENSATION SYSTEM INTO THE FRACTIONATION TOWER, WITHDRAWING THE UNCONDENSED HYDROGEN AND METHANE FROM THE LOW TEMPERATURE CONDENSATION SYSTEM AS A GASEOUS PRODUCT STREAM AND WITHDRAWING A SUBSTANTIALLY HYDROGEN AND METHANE FREE LIQUID PRODUCT STREAM FROM THE BOTTOM OF THE FRACTIONATION TOWER.
Claim 2
Independent Claim
160 words
A METHOD FOR REMOVING HYDROGEN AND METHANE CONSTITUENTS FROM A GASEOUS FEED MIXTURE COMPRISING HYDROGEN, METHANE, ETHYLENE, ETHANE, PROPYLENE AND PROPANE COMPRISING CONDENSING A SUBSTANTIAL PORTION OF THE FEED MIXTURE, SEPARATING THE RESULTING LIQUID CONDENSATE FROM THE UNCONDENSED PORTION OF THE FEED MIXTURE, EXPANDING THE LIQUID FEED MIXTURE CONDENSATE TO NOT MORE THAN 600 P.S.I.G. AND THEN INTRODUCING IT INTO A FRACTIONATION TOWER, CONDUCTING THE UNCONDENSED FEED MIXTURE TO A LOW TEMPERATURE CONDENSATION SYSTEM, CONDUCTING THE OVERHEAD GASES FROM THE FRACTIONATION TOWER TO THE LOW TEMPERATURE CONDENSATION SYSTEM, CONDENSING SUBSTANTIALLY OF ALL THE ETHANE AND ETHYLENE IN THE UNCONDENSED FEED MIXTURE AND IN THE OVERHEAD GASES IN THE LOW TEMPERATURE CONDENSATION SYSTEM, INTRODUCING THE CONDENSATE FROM THE LOW TEMPERATURE CONDENSATION SYSTEM INTO THE FRACTIONATION TOWER, WITHDRAWING THE UNCONDENSED HYDROGEN AND METHANE FROM THE LOW TEMPERATURE CONDENSATION SYSTEM AS A GASEOUS PRODUCT STREAM AND WITHDRAWING A SUBSTANTIALLY HYDROGEN AND METHANE FREE LIQUID PRODUCT STREAM FROM THE BOTTOM OF THE FRACTIONATION TOWER.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |