US2731396A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination crude distillation and cracking process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-07-30
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Granted: 1956-01-17
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Expires: 1972-07-30
Abstract
No abstract record available.
Inventors
- 👤 Clarke T Harding
- 👤 Maurice W Mayer
- 👤 Richard O Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:18
CPC Classifications
C; C10; C10G; C10G63/00; C10G63/06; C10G63/08; B; B01; B01D; B01D3/00; B01D3/009; C10G11/00; C10G11/14; C10G11/18; C10G35/00; C10G35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A COMBINATION CRUDE DISTILLATION AND HYDROCARBON CONVERSION PROCESS, THE IMPROVEMENT WHICH COMPRISES SUBJECTING CRUDE OIL TO DISTILLATION IN A DISTILLATION ZONE TO PRODUCE DISTILLATE FRACTIONS INCLUDING A GAS OIL FRACTION AND A NAPHTHA CUT AND REDUCED CRUDE, PASSING SAID REDUCED CRUDE TO A LOW PRESSURE PRODUCT FRACTIONATION ZONE, CATALYTICALLY CRACKING SAID GAS OIL FRACTIONS AND STRIPPING SAID REDUCED CRUDE IN SAID PRODUCT FRACTIONATION ZONE WITH VAPORS FROM SAID CATALYTIC CRACKING OPERATION SUBJECTING A NAPHTHA CUT OF SAID DISTILLATE FRACTIONS TO CATALYTIC REFORMING IN A REFORMING ZONE YIELDING HYDROGEN RECOVERING STRIPPED REDUCED CRUDE BOTTOMS FROM SAID PRODUCING FRACTIONATION ZONE, WITHDRAWING DISTILLATE FRACTIONS FROM SAID PRODUCT FRACTIONATION ZONE AND TREATING ONE OF SAID LAST NAMED DISTILLATE FRACTIONS WITH SAID HYDROGEN OUTSIDE SAID REFORMING AND PRODUCT FRACTIONATION ZONES.
Claim 2
Dependent Claim
126 words
IN A COMBINATION CRUDE DISTILLATION AND HYDROCARBON CONVERSION PROCESS, THE IMPROVEMENT WHICH COMPRISES SUBJECTING CRUDE OIL TO DISTILLATION IN A DISTILLATION ZONE TO PRODUCE DISTILLATE FRACTIONS INCLUDING A GAS OIL FRACTION AND A NAPHTHA CUT AND REDUCED CRUDE, PASSING SAID REDUCED CRUDE TO A LOW PRESSURE PRODUCT FRACTIONATION ZONE, CATALYTICALLY CRACKING SAID GAS OIL FRACTIONS AND STRIPPING SAID REDUCED CRUDE IN SAID PRODUCT FRACTIONATION ZONE WITH VAPORS FROM SAID CATALYTIC CRACKING OPERATION SUBJECTING A NAPHTHA CUT OF SAID DISTILLATE FRACTIONS TO CATALYTIC REFORMING IN A REFORMING ZONE YIELDING HYDROGEN RECOVERING STRIPPED REDUCED CRUDE BOTTOMS FROM SAID PRODUCING FRACTIONATION ZONE, WITHDRAWING DISTILLATE FRACTIONS FROM SAID PRODUCT FRACTIONATION ZONE AND TREATING ONE OF SAID LAST NAMED DISTILLATE FRACTIONS WITH SAID HYDROGEN OUTSIDE SAID REFORMING AND PRODUCT FRACTIONATION ZONES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |