Patent US3284346A successfully refreshed from Google Patents.
US3284346A
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Molecular sieve separation of hydrocarbon mixtures boiling above c9 hydrocarbons
Assignee: BP PLC
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Filing: 1964-02-07
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Granted: 1966-11-08
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Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Anstey Roger Hilary
- 👤 Macnab Robert Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:54
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR SEPARATING STRAIGHT-CHAIN HYDROCARBONS FROM A PETROLEUM FRACTION BOILING ABOVE C9 COMPRISING DILUTING THE FEEDSTOCK WITH A DILUENT SELECTED FROM THE GROUP CONSISTING OF INERT GAS AND A LOW BOILING STRAIGHT-CHAIN HYDROCARBON, CONTACTING THE DILUTED FEEDSTOCK AT AN ELEVATED TEMPERATURE AND THE VAPOR PHASE WITH A 5 A. MOLECULAR SIEVE IN AN ABSORPTION STAGE, PURGING SAID MOLECULAR SIEVE IN THE VAPOR PHASE TO REMOVE NON-ABSORBED MATERIAL FROM THE SIEVE SURFACE THEREOF, AND SUBJECTING SAID MOLECULAR SIEVE TO A DESORPTION STAGE AT ELEVATED TEMPERATURE AND IN THE VAPORPHASE AND AT A PRESSURE BELOW THE EMPLOYED IN THE ABSORPTION STAGE TO OBTAIN SRTAIGHT-CHAIN HYDROCARBONS.
Claim 2
Dependent Claim
104 words
A PROCESS FOR SEPARATING STRAIGHT-CHAIN HYDROCARBONS FROM A PETROLEUM FRACTION BOILING ABOVE C9 COMPRISING DILUTING THE FEEDSTOCK WITH A DILUENT SELECTED FROM THE GROUP CONSISTING OF INERT GAS AND A LOW BOILING STRAIGHT-CHAIN HYDROCARBON, CONTACTING THE DILUTED FEEDSTOCK AT AN ELEVATED TEMPERATURE AND THE VAPOR PHASE WITH A 5 A. MOLECULAR SIEVE IN AN ABSORPTION STAGE, PURGING SAID MOLECULAR SIEVE IN THE VAPOR PHASE TO REMOVE NON-ABSORBED MATERIAL FROM THE SIEVE SURFACE THEREOF, AND SUBJECTING SAID MOLECULAR SIEVE TO A DESORPTION STAGE AT ELEVATED TEMPERATURE AND IN THE VAPORPHASE AND AT A PRESSURE BELOW THE EMPLOYED IN THE ABSORPTION STAGE TO OBTAIN SRTAIGHT-CHAIN HYDROCARBONS.
References Cited (Backward Citations)
US3030431A
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US3037338A
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US3106593A
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US3061654A
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |