US2865850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization process
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-09-06
•
Granted: 1958-12-23
•
Expires: 1975-09-06
Abstract
No abstract record available.
Inventors
- 👤 Henry A Holcomb
- 👤 Morris R Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:12
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A PROCESS WHICH COMPRISES THE STEPS OF DESULFURIZING A PETROLEUM HYDROCARBON BOILING IN THE NAPHTHA RANGE IN CONTACT WITH A DESULFURIZATION CATALYST IN THE PRESENCE OF ABOUT 250 TO ABOUT 2,000 CUBIC FEET OF HYDROGEN PER BARREL OF FEED STOCK AND ABOUT 1.0 TO ABOUT 10 MOL PERCENT OF ADDED HYDROGEN SULFIDE (5H2S), BASED ON THE TOTAL AMOUNT OF FEED MATERIAL, UNDER REACTION CONDITIONS INCLUDING A TEMPERATURE WITHIN THE RANG E OF ABOUT 500* TO ABOUT 750*F. (TR), A SPACE VELOCITY IN THE RANGE OF ABOUT 1 TO ABOUT 16 VOLUMES OF FEED PER VOLUME OF CATALYST PER HOUR (V./V./HR.), A REACTOR PRESSURE WITHIN THE RANGE OF ABOUT 50 TO ABOUT 300 POUNDS PER SQUARE INCH GAUGE AND A HYDROGEN PARTIAL PRESSURE WITHIN THE RANGE OF ABOUT 50 TO ABOUT 150 POUNDS PER SQUARE INCH ABSOLUTE, SAID REACTION CONDITIONS AT LEAST SUBSTANTIALLY SATISFYING THE EQUATION
Claim 2
Dependent Claim
145 words
A PROCESS WHICH COMPRISES THE STEPS OF DESULFURIZING A PETROLEUM HYDROCARBON BOILING IN THE NAPHTHA RANGE IN CONTACT WITH A DESULFURIZATION CATALYST IN THE PRESENCE OF ABOUT 250 TO ABOUT 2,000 CUBIC FEET OF HYDROGEN PER BARREL OF FEED STOCK AND ABOUT 1.0 TO ABOUT 10 MOL PERCENT OF ADDED HYDROGEN SULFIDE (5H2S), BASED ON THE TOTAL AMOUNT OF FEED MATERIAL, UNDER REACTION CONDITIONS INCLUDING A TEMPERATURE WITHIN THE RANG E OF ABOUT 500* TO ABOUT 750*F. (TR), A SPACE VELOCITY IN THE RANGE OF ABOUT 1 TO ABOUT 16 VOLUMES OF FEED PER VOLUME OF CATALYST PER HOUR (V./V./HR.), A REACTOR PRESSURE WITHIN THE RANGE OF ABOUT 50 TO ABOUT 300 POUNDS PER SQUARE INCH GAUGE AND A HYDROGEN PARTIAL PRESSURE WITHIN THE RANGE OF ABOUT 50 TO ABOUT 150 POUNDS PER SQUARE INCH ABSOLUTE, SAID REACTION CONDITIONS AT LEAST SUBSTANTIALLY SATISFYING THE EQUATION
References Cited (Backward Citations)
US2604438A
Cited
US2687983A
Cited
US2799661A
Cited
US2761816A
Cited
US2273299A
Cited
US2370707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |