Patent US1465392A successfully refreshed from Google Patents.
Patent US3227647A successfully refreshed from Google Patents.
US3227647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation process
Assignee: Standard Oil Co
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Filing: 1960-08-08
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Granted: 1966-01-04
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Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert G Krane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:10
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
337 words
IN A SEPARATION PROCESS OR SEPARATING STRAIGHT-CHAIN HYDROCARBONS FROM A MIXTURE OF STRAIGHT-CHAIN HYDROCARBONS AND NONSTRAIGHT-CHAIN HYDROCARBONS USING A BED OF MOLECULAR SIEVE ADSORBENT MATERIAL HAVING TWO OPPOSING ENDS, THE IMPROVEMENT WHICH COMPRISES CHARGING A PORTION OF A FIRST HYDROCARBON FEED MATERIAL CONTAINING STRAIGHTCHAIN HYDROCARBONS AND NONSTRAIGHT-CHAIN HYDROCARBONS TO THE ADSORPTION BED AT THE FIRST END OF THE BED WHEREBY STRAIGHT-CHAIN HYDROCARBONS ARE ADSORBED FROM SAID FIRST FEED ON SAID MOLECULAR SIEVE MATERIAL, WITHDRAWING THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID FIRST FEED FROM THE SECOND END OF SAID BED, CHARGING TO THE ADSORPTION BED AT THE SECOND END THEREOF THE PORTION OF A SECOND HYDROCARBON FEED MATERIAL CONTAINING STRAIGHT-CHAIN HYDROCARBONS AND NONSTRAIGHT-CHAIN HYDROCARBONS, THE STRAIGHT-CHAIN HYDROCARBONS OF SAID SECOND FEED BOILING IN A RANGE DIFFERING FROM THE BOILING RANGE OF THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID FIRST FEED AND THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID FIRST FEED BOILING IN A RANGE DIFFERING FROM THE BOILING RANGE OF THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID SECOND FEED, WHEREBY THE STRAIGHT-CHAIN HYDROCARBONS OF SAID SECOND FEED ARE ADSORBED AND THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID SECOND FEED PASS THROUGH THE BED AND STRIP ADSORBED STRAIGHT-CHAIN HYDROCARBONS OF SAID FIRST FEED FROM SAID BED, THE CHARGING OF SAID FIRST AND SAID SECOND FEED BEING ADJUSTED TO ADSORB IN SAID BED A TOTAL OF STRAIGHT-CHAIN HYDROCARBONS FROM SAID FIRST AND SAID SECOND FEEDS IN AN AMOUNT LESS THAN THE TOTAL ADSORPTIVE CAPACITY OF THE BED FOR STRAIGHT-CHAIN HYDROCARBONS, RECOVERING A MIXTURE OF NONSTRAIGHT-CHAIN HYDROCARBONS OF THE SECOND FEED AND STRAIGHT-CHAIN HYDROCARBONS OF THE FIRST FEED FROM THE FIRST END OF SAID BED AS A FIRST PRODUCT MIXTURE, CHARGING ANOTHER PORTION OF SAID FIRST FEED THROUGH THE BED FROM SAID FIRST END AND RECOVERING FROM SECOND END A SECOND PRODUCT MIXTURE, SEPARATING SAID FIRST PRODUCT MIXTURE INTO A FIRST PRODUCT OF INCREASED STRAIGHT-CHAIN HYDROCARBON CONTENT AND A SECOND PRODUCT OF INCREASED NONSTRAIGHT-CHAIN HYDROCARBON CONTENT, AND SEPARATING SAID SECOND PRODUCT MIXTURE INTO A THIRD PRODUCT OF INCREASED STRAIGHT-CHAIN HYDROCARBON CONTENT AND A FOURTH PRODUCT OF INCREASED NONSTRAIGHT-CHAIN HYDROCARBON CONTENT.
Claim 2
Dependent Claim
337 words
IN A SEPARATION PROCESS OR SEPARATING STRAIGHT-CHAIN HYDROCARBONS FROM A MIXTURE OF STRAIGHT-CHAIN HYDROCARBONS AND NONSTRAIGHT-CHAIN HYDROCARBONS USING A BED OF MOLECULAR SIEVE ADSORBENT MATERIAL HAVING TWO OPPOSING ENDS, THE IMPROVEMENT WHICH COMPRISES CHARGING A PORTION OF A FIRST HYDROCARBON FEED MATERIAL CONTAINING STRAIGHTCHAIN HYDROCARBONS AND NONSTRAIGHT-CHAIN HYDROCARBONS TO THE ADSORPTION BED AT THE FIRST END OF THE BED WHEREBY STRAIGHT-CHAIN HYDROCARBONS ARE ADSORBED FROM SAID FIRST FEED ON SAID MOLECULAR SIEVE MATERIAL, WITHDRAWING THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID FIRST FEED FROM THE SECOND END OF SAID BED, CHARGING TO THE ADSORPTION BED AT THE SECOND END THEREOF THE PORTION OF A SECOND HYDROCARBON FEED MATERIAL CONTAINING STRAIGHT-CHAIN HYDROCARBONS AND NONSTRAIGHT-CHAIN HYDROCARBONS, THE STRAIGHT-CHAIN HYDROCARBONS OF SAID SECOND FEED BOILING IN A RANGE DIFFERING FROM THE BOILING RANGE OF THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID FIRST FEED AND THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID FIRST FEED BOILING IN A RANGE DIFFERING FROM THE BOILING RANGE OF THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID SECOND FEED, WHEREBY THE STRAIGHT-CHAIN HYDROCARBONS OF SAID SECOND FEED ARE ADSORBED AND THE NONSTRAIGHT-CHAIN HYDROCARBONS OF SAID SECOND FEED PASS THROUGH THE BED AND STRIP ADSORBED STRAIGHT-CHAIN HYDROCARBONS OF SAID FIRST FEED FROM SAID BED, THE CHARGING OF SAID FIRST AND SAID SECOND FEED BEING ADJUSTED TO ADSORB IN SAID BED A TOTAL OF STRAIGHT-CHAIN HYDROCARBONS FROM SAID FIRST AND SAID SECOND FEEDS IN AN AMOUNT LESS THAN THE TOTAL ADSORPTIVE CAPACITY OF THE BED FOR STRAIGHT-CHAIN HYDROCARBONS, RECOVERING A MIXTURE OF NONSTRAIGHT-CHAIN HYDROCARBONS OF THE SECOND FEED AND STRAIGHT-CHAIN HYDROCARBONS OF THE FIRST FEED FROM THE FIRST END OF SAID BED AS A FIRST PRODUCT MIXTURE, CHARGING ANOTHER PORTION OF SAID FIRST FEED THROUGH THE BED FROM SAID FIRST END AND RECOVERING FROM SECOND END A SECOND PRODUCT MIXTURE, SEPARATING SAID FIRST PRODUCT MIXTURE INTO A FIRST PRODUCT OF INCREASED STRAIGHT-CHAIN HYDROCARBON CONTENT AND A SECOND PRODUCT OF INCREASED NONSTRAIGHT-CHAIN HYDROCARBON CONTENT, AND SEPARATING SAID SECOND PRODUCT MIXTURE INTO A THIRD PRODUCT OF INCREASED STRAIGHT-CHAIN HYDROCARBON CONTENT AND A FOURTH PRODUCT OF INCREASED NONSTRAIGHT-CHAIN HYDROCARBON CONTENT.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |