US3098814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stage adsorption process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-09-08
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Granted: 1963-07-23
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Expires: 1979-09-08
Abstract
No abstract record available.
Inventors
- 👤 William R Epperly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:33
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13; C10; C10G; C10G53/00; C10G53/02; C10G53/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
THE PROCESS FOR PREPARING THE FEED FOR AN ISOMERIZATION REACTION WHICH COMPRISES VAPORIZING SAID FEED, PASSING THE VAPORIZED FEED CONTAINING BENEZE, SULFUR AND OLEFINS TO A FIRST ADSORPTION ZONE CONTAINING A ZEOLITIC MOLECULAR SIEZE OF UNIFORM PORE SIZE FROM 6-15 ANGSTROMS AT A RATE OF FROM ABOUT 0.5 TO 5.0 W./W./HR., MAINTAINING SAID ADSORPTION ZONE AT A TEMPERATURE OF FROM ABOUT 200 TO ABOUT 350* F. AND UNDER A PRESSURE OF FROM ABOUT 15 TO 50 P.S.I.A., DESORBING BENZENEE AND SULFUR IN SAID FIRST ADSORPTION ZONE, WITHDRAWING FROM SAID FIRST ADSORPTION ZONE SAID FEED SUBSTANTIALLY FREE OF BENZENE AND SULFUR, CONDENSING SAID FEED, PASSING SAID FEED TO A SECOND ADSOPTION COLUMN CONTAINING A SODIUM-CALCIUM ZEOLITIC MOLECULA SIEZE OF A UNIFORM PORE SIZE OF FROM 6-15 ANGSTROMS AT A RATE OF FROM ABOUT 0.5 TO 5.0 W./W./HR., MAINTAINING A LIQUID PHASE OPERATION AT A TEMPERATURE OF FROM ABOUT 70-150*F. AND A PRESSURE OF FROM ABOUT 15 TO 50 P.S.I.A. IN SAID SECOND ADSORPTION ZONE, AND THEN PASSING SAID FEED FROM SECOND ADSORPTION ZONE, WITHDRAWING SAID FEED TO AN ISOMERIZATION REACTOR.
Claim 2
Dependent Claim
179 words
THE PROCESS FOR PREPARING THE FEED FOR AN ISOMERIZATION REACTION WHICH COMPRISES VAPORIZING SAID FEED, PASSING THE VAPORIZED FEED CONTAINING BENEZE, SULFUR AND OLEFINS TO A FIRST ADSORPTION ZONE CONTAINING A ZEOLITIC MOLECULAR SIEZE OF UNIFORM PORE SIZE FROM 6-15 ANGSTROMS AT A RATE OF FROM ABOUT 0.5 TO 5.0 W./W./HR., MAINTAINING SAID ADSORPTION ZONE AT A TEMPERATURE OF FROM ABOUT 200 TO ABOUT 350* F. AND UNDER A PRESSURE OF FROM ABOUT 15 TO 50 P.S.I.A., DESORBING BENZENEE AND SULFUR IN SAID FIRST ADSORPTION ZONE, WITHDRAWING FROM SAID FIRST ADSORPTION ZONE SAID FEED SUBSTANTIALLY FREE OF BENZENE AND SULFUR, CONDENSING SAID FEED, PASSING SAID FEED TO A SECOND ADSOPTION COLUMN CONTAINING A SODIUM-CALCIUM ZEOLITIC MOLECULA SIEZE OF A UNIFORM PORE SIZE OF FROM 6-15 ANGSTROMS AT A RATE OF FROM ABOUT 0.5 TO 5.0 W./W./HR., MAINTAINING A LIQUID PHASE OPERATION AT A TEMPERATURE OF FROM ABOUT 70-150*F. AND A PRESSURE OF FROM ABOUT 15 TO 50 P.S.I.A. IN SAID SECOND ADSORPTION ZONE, AND THEN PASSING SAID FEED FROM SECOND ADSORPTION ZONE, WITHDRAWING SAID FEED TO AN ISOMERIZATION REACTOR.
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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |