US2499435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of corrosive conditions in condensers of a fixed bed catalytic cracking unit
Assignee: Standard Oil Co
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Filing: 1946-11-23
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Granted: 1950-03-07
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Expires: 1966-11-23
Abstract
No abstract record available.
Inventors
- 👤 Charles H Whitacre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:55
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A PROCESS OF CRACKING HYDROCARBONS WHICH INCLUDES ALTERNATELY PASSING SAID HYDROCARBONS OVER A CATALYST AND REGENERATING SAID CATALYST, CONDENSING AT LEAST A PORTION OF THE VAPORS PRODUCED BY PASSING SAID HYDROCARBONS OVER SAID CATALYST, SAID VAPORS INCLUDING STEAM AND BEING EXCESSIVELY CORROSIVE TO THE CONDENSING APPARATUS, AND SEPARATING THE CONDENSATE WATER FROM THE CONDENSED HYDROCARBON PRODUCTS, THE STEPS WHICH COMPRISE COLLECTING SAID CONDENSATE WATER AND CONTACTING SAID VAPORS WITH FROM ABOUT ONE TO ABOUT TEN PARTS OF SAID COLLECTED CONDENSATE WATER TO ONE PART OF STEAM CONDENSED FROM THE REACTION PRODUCTS.
Claim 2
Dependent Claim
92 words
IN A PROCESS OF CRACKING HYDROCARBONS WHICH INCLUDES ALTERNATELY PASSING SAID HYDROCARBONS OVER A CATALYST AND REGENERATING SAID CATALYST, CONDENSING AT LEAST A PORTION OF THE VAPORS PRODUCED BY PASSING SAID HYDROCARBONS OVER SAID CATALYST, SAID VAPORS INCLUDING STEAM AND BEING EXCESSIVELY CORROSIVE TO THE CONDENSING APPARATUS, AND SEPARATING THE CONDENSATE WATER FROM THE CONDENSED HYDROCARBON PRODUCTS, THE STEPS WHICH COMPRISE COLLECTING SAID CONDENSATE WATER AND CONTACTING SAID VAPORS WITH FROM ABOUT ONE TO ABOUT TEN PARTS OF SAID COLLECTED CONDENSATE WATER TO ONE PART OF STEAM CONDENSED FROM THE REACTION PRODUCTS.
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) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |