US3340178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for catalytically cracking pyrolysis condensates
Assignee: Air Products and Chemicals Inc
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Filing: 1964-08-25
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Granted: 1967-09-05
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Expires: 1984-08-25
Abstract
No abstract record available.
Inventors
- 👤 George F Hornaday
- 👤 Henry D Noll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:20
CPC Classifications
C; C10; C10G; C10G69/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
IN THE PROCESS IN WHICH A GAS OIL IS SUBJECTED TO HYDRODESULFURIZATION AND THE HYDRODESULFURIZED GAS OIL IS CATALYTICALLY CRACKED TO PROVIDE GASOLINE, THE IMPROVEMENT WHICH INCLUDES THE COMBINATION OF; DISTILLING CRUDE PETROLEUM TO PROVIDE A NAPTHIA FRACTION, KEROSENE AND DIESEL OIL FRACTIONS AND A HEAVY GAS OIL FRACTION; SUBJECTING SAID KEROSENE AND DIESEL OIL FRACTIONS TO VAPOR-PHASE HYDRODESULFURIZATION; DISTILLING TO SEPARATE A LIGHT DESULFURIZED GAS OIL FROM THE PRODUCT OF VAPOR-PHASE DESULFURIZATION; SUBJECTING THE HEAVY GAS OIL FRACTION TO LIQUID-PHASE-HYDRODESULFURIZATION AT A TEMPERATURE FROM ABOUT 355 TO ABOUT 430*C., AT A PRESSURE FROM ABOUT 500 TO ABOUT 800 P.S.I.G., AT A SPACE RATE FROM ABOUT 0.5 TO ABOUT 2.5 LIQUID VOLUMES PER VOLUME OF CATALYST PER HOUR IN THE PRESENCE OF HYDROGEN RICH RECYCLES GAS AT A RATE OF ABOUT 4000 TO 6000 STANDARD CUBIC FEET OF GAS PER BARREL
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |