US3857780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroforming petroleum fractions in gas phase using shaped catalyst particles
Assignee: Individual
•
Filing: 1973-08-03
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Granted: 1974-12-31
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Expires: 1993-08-03
Abstract
Abstract An improvement in the process of hydroforming petroleum fractions wherein a petroleum fraction is contacted in gaseous phase and in the presence of hydrogen with catalyst particles comprised of a formed porous alumina base carrying a promoter selected from platinum and mixtures of platinum and rhenium, gallium, germanium, iridium, rhodium, and zinc, said improvement comprising use of catalyst particles which are of polylobal cross-sectional shape.
Inventors
- 👤 W Gustafson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:33
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/835; B01J23/38; B01J23/40; B01J23/46; B01J23/54; B01J23/56; B01J23/825; B01J35/00; B01J35/50; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; B01J35/55
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
169 words
IN A PROCESS OF HYDROFORMING A PETROLEUM FRACTION WHEREIN SAID PETROLEUM FRACTION IS CONTACTED IN GASEOUS PHASE WITH HYDROGEN AND WITH CATALYST PARTICLES COMPRISED OF AN EXTRUDED POROUS ALUMINA BASE CARRYING A PROMOTER SELECTED FROM PLATINUM AND MIXTURES THEREOF WITH RHENIUM, GALLIUM, GERMANIUM, IRIDUM, RHODIUM, AND ZINC, THE IMPROVEMENT WHICH COMPRISES SAID CATALYST PARTICLES HAVING A POLYOBAL CROSS-SECTIONAL SHAPE, SAID POLYOBAL CROSS-SECTIONAL SHAPE BEING SUCH THAT THE NUMBER OF LOBES IS 2 TO 5 AND SAID LOBES ARE DEFINED BY CIRCLES, ALL OF SAID CIRCLES IN SAID CROSS-SECTIONAL SHAPE HAVING EQUAL DIAMETERS, THE CENTERS OF SAID CIRCLES BEING SPACED FROM ONE ANOTHER BY A DISTANCE WHICH IS FORMED ABOUT 3/8 TO 15/16 OF THE DIAMETERS OF SAID CIRCLES AND WHEN MORE THAN TWO LOBES ARE PRESENT, LINES CONNECTING THE CENTERS OF ADJACENT CIRCLES FROM A SUBSTANTIALLY EQUILATERAL POLYGON EACH SIDE OF WHICH IS FROM ABOUT 3/8 TO 15/16 OF THE DIAMETERS OF SAID CIRCLES AND ALL OF SAID CROSS-SECTIONAL SHAPE INCLUDED BY SAID CIRCLES BEING OF SAID POROUS ALUMINA.
Claim 2
Dependent Claim
169 words
IN A PROCESS OF HYDROFORMING A PETROLEUM FRACTION WHEREIN SAID PETROLEUM FRACTION IS CONTACTED IN GASEOUS PHASE WITH HYDROGEN AND WITH CATALYST PARTICLES COMPRISED OF AN EXTRUDED POROUS ALUMINA BASE CARRYING A PROMOTER SELECTED FROM PLATINUM AND MIXTURES THEREOF WITH RHENIUM, GALLIUM, GERMANIUM, IRIDUM, RHODIUM, AND ZINC, THE IMPROVEMENT WHICH COMPRISES SAID CATALYST PARTICLES HAVING A POLYOBAL CROSS-SECTIONAL SHAPE, SAID POLYOBAL CROSS-SECTIONAL SHAPE BEING SUCH THAT THE NUMBER OF LOBES IS 2 TO 5 AND SAID LOBES ARE DEFINED BY CIRCLES, ALL OF SAID CIRCLES IN SAID CROSS-SECTIONAL SHAPE HAVING EQUAL DIAMETERS, THE CENTERS OF SAID CIRCLES BEING SPACED FROM ONE ANOTHER BY A DISTANCE WHICH IS FORMED ABOUT 3/8 TO 15/16 OF THE DIAMETERS OF SAID CIRCLES AND WHEN MORE THAN TWO LOBES ARE PRESENT, LINES CONNECTING THE CENTERS OF ADJACENT CIRCLES FROM A SUBSTANTIALLY EQUILATERAL POLYGON EACH SIDE OF WHICH IS FROM ABOUT 3/8 TO 15/16 OF THE DIAMETERS OF SAID CIRCLES AND ALL OF SAID CROSS-SECTIONAL SHAPE INCLUDED BY SAID CIRCLES BEING OF SAID POROUS ALUMINA.
Claim 3
Dependent Claim
15 words
The process of claim 1 wherein said catalyst is promoted with platinum and chloride ions.
Claim 4
Dependent Claim
16 words
The process of claim 1 wherein said catalyst is promoted with Platinum, rhenium, and chloride ions.
Claim 5
Dependent Claim
12 words
The process of claim 1 wherein said catalyst is of dilobal cross-section.
Claim 6
Dependent Claim
12 words
The process of claim 1 wherein said catalyst is of trilobal cross-section.
Claim 7
Dependent Claim
12 words
The process of claim 2 wherein said catalyst is of trilobal cross-section.
Claim 8
Dependent Claim
12 words
The process of claim 3 wherein said catalyst is of trilobal cross-section.
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) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |