US3092568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cracking high boiling hydrocarbons
Assignee: MW Kellogg Co
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Filing: 1960-01-07
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Granted: 1963-06-04
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Expires: 1980-01-07
Abstract
No abstract record available.
Inventors
- 👤 Paul T Atteridg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:32
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD FOR CONVERTING HIGH-BOILING HYDROCARBONS CONTAINING METAL CONTAMINANTS TO LOWER BOILING HYDROCARBONS WHICH COMPRISES PASSING A HIGH-BOILING HYDROCARBON FEED IN CONTACT WITH A CRACKING CATALYST MAINTAINED IN A FLUIDIZED CONDITION, (A) REPLACING CATALYST WHEN THE HYDROCARBON FEED IS INITIALLY SUPPLIED TO THE PROCESS AT A PREDETERMINED INITIAL FRACTIONAL REPLACEMENT RATE OF CATALYST PER DAY FOR A PREDETERMINED INITIAL TIME, (B) THEREAFTER REDUCING THE CATALYST REPLACEMENT RATE TO ANOTHER LOWER PREDETERMINED ULTIMATE RATE AND CARRYING OUT THE CRACKING PROCESS AT SAID LOWER RATE, THE ULTIMATE RATE FOR STEP (B) BEING WITHIN THE RANGE OF 0.004 TO 0.2 AND THE CATALYST REPLACEMENT RATE AND TIME OF USE FOR STEP (A) BEING IN ACCORDANCE WITH THE CORRELATION OF THE ULTIMATE CATALYST REPLACEMENT RATE AND METALS FEED RATE ACCORDING TO THE CURVES OF FIGURE 5.
Claim 2
Independent Claim
132 words
A METHOD FOR CONVERTING HIGH-BOILING HYDROCARBONS CONTAINING METAL CONTAMINANTS TO LOWER BOILING HYDROCARBONS WHICH COMPRISES PASSING A HIGH-BOILING HYDROCARBON FEED IN CONTACT WITH A CRACKING CATALYST MAINTAINED IN A FLUIDIZED CONDITION, (A) REPLACING CATALYST WHEN THE HYDROCARBON FEED IS INITIALLY SUPPLIED TO THE PROCESS AT A PREDETERMINED INITIAL FRACTIONAL REPLACEMENT RATE OF CATALYST PER DAY FOR A PREDETERMINED INITIAL TIME, (B) THEREAFTER REDUCING THE CATALYST REPLACEMENT RATE TO ANOTHER LOWER PREDETERMINED ULTIMATE RATE AND CARRYING OUT THE CRACKING PROCESS AT SAID LOWER RATE, THE ULTIMATE RATE FOR STEP (B) BEING WITHIN THE RANGE OF 0.004 TO 0.2 AND THE CATALYST REPLACEMENT RATE AND TIME OF USE FOR STEP (A) BEING IN ACCORDANCE WITH THE CORRELATION OF THE ULTIMATE CATALYST REPLACEMENT RATE AND METALS FEED RATE ACCORDING TO THE CURVES OF FIGURE 5.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |