US2983675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maintaining substantially constant pressure differential downstream of a hydrogenating reactor
Assignee: ExxonMobil Oil Corp
•
Filing: 1957-07-05
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Granted: 1961-05-09
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Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 Richard S Baxter
- 👤 Corliss F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:01
CPC Classifications
C; C10; C10G; C10G69/00; C10G69/02; C10G69/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD FOR PRETREATING A REFORMER FEED STOCK CONTAINING SULFUR, NITROGEN, AND CHLORINE COMPOUNDS AS CONTAMINANTS WHICH COMPRISES REACTING SAID FEED STOCK WITH HYDROGEN UNDER DESULFURIZING CONDITIONS THEREBY PRODUCING AN EFFLUENT STREAM COMPRISING HYDROCARBONS, HYDROGEN AND WATER-SOLUBLE MATERIAL DERIVED FROM SAID CONTAMINENTS, INJECTING HOT WATER INTO SAID EFFLUENT STREAM WHILE THE SAID STREAM IS AT A TEMPERATURE IN EXCESS OF ABOUT 450*F. AND UNDER A PRESSURE SUFFICIENT TO MAINTAIN SAID WATER IN THE LIQUID PHASE, COOLING SAID MIXED STREAM OF EFFLUENT AND WATER TO A TEMPERATURE AT WHICH C4 AND HIGHER HYDROCARBONS ARE CONDENSED, SEPARATING FROM SAID COOLED MIXED STREAM, (A) A GASEOUS FRACTION, (B) AN AQUEOUS FRACTION CONTAINING SAID WATER SOLUBLE MATERIAL IN SOLUTION AND (C) A LIQUID HYDROCARBON FRACTION COMPRISING C4 AND HIGHER HYDROCARBONS.
Claim 2
Independent Claim
126 words
A METHOD FOR PRETREATING A REFORMER FEED STOCK CONTAINING SULFUR, NITROGEN, AND CHLORINE COMPOUNDS AS CONTAMINANTS WHICH COMPRISES REACTING SAID FEED STOCK WITH HYDROGEN UNDER DESULFURIZING CONDITIONS THEREBY PRODUCING AN EFFLUENT STREAM COMPRISING HYDROCARBONS, HYDROGEN AND WATER-SOLUBLE MATERIAL DERIVED FROM SAID CONTAMINENTS, INJECTING HOT WATER INTO SAID EFFLUENT STREAM WHILE THE SAID STREAM IS AT A TEMPERATURE IN EXCESS OF ABOUT 450*F. AND UNDER A PRESSURE SUFFICIENT TO MAINTAIN SAID WATER IN THE LIQUID PHASE, COOLING SAID MIXED STREAM OF EFFLUENT AND WATER TO A TEMPERATURE AT WHICH C4 AND HIGHER HYDROCARBONS ARE CONDENSED, SEPARATING FROM SAID COOLED MIXED STREAM, (A) A GASEOUS FRACTION, (B) AN AQUEOUS FRACTION CONTAINING SAID WATER SOLUBLE MATERIAL IN SOLUTION AND (C) A LIQUID HYDROCARBON FRACTION COMPRISING C4 AND HIGHER HYDROCARBONS.
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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |