Patent US3876523A successfully refreshed from Google Patents.
US3876523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for residua demetalation and desulfurization
Assignee: Mobil Oil AS
•
Filing: 1973-08-29
•
Granted: 1975-04-08
•
Expires: 1993-08-29
Abstract
Abstract Demetalation and desulfurization of residual petroleum oil is carried out with hydrogen and with an alumina base catalyst incorporating a Group VI-B and a Group VIII metal. The catalyst has at least 60% of its pore volume in pore diameters within the range of 100-200 Angstroms, at least 5% of its pore volume is in pore diameters greater than 500 Angstroms, at least 5% of its pore volume is in pore diameters less than 40 Angstroms and the surface area of the catalyst is 40-150 m.sup.2 /g, preferably a surface area up to about 110 m.sup.2 /g.
Inventors
- 👤 Edward J Rosinski
- 👤 Thomas R Stein
- 👤 Ronald H Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:03
CPC Classifications
C; C10; C10G; C10G69/00; C10G69/02; C10G69/06; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
IN THE PROCESS FOR PURIFYING RESIDUAL PETROLEUM OIL COMPRISING DEMETALIZING AND DESULFURIZING SAID OIL IN CONTACT WITH HYDROGEN AND WITH AN ALUMINA BASE CATALYST INCORPORATING GROUP VI-B AND A GROUP VII METAL, THE IMPROVEMENT WHICH COMPRISES SAID CATALYST HAVING AT LEAST ABOUT 60% OF ITS PORE VOLUME CONTRIBUTED BY PORES HAVING DIAMETERS IN THE RANGE OF ABOUT 100 TO 200A, AT LEAST ABOUT 5% OF ITS PORE VOLUME CONTRIBUTED BY PORES HAVING DIAMETERS GREATER THAN 500A, AT LEAST ABOUT 5% OF ITS PORE VOLUME CONTRIBUTED BY PORES HAVING DIAMETERS LESS THAN 40A, AND HAVING A SURFACE AREA OF UP TO ABOUT 110M2/G.
Claim 2
Dependent Claim
102 words
IN THE PROCESS FOR PURIFYING RESIDUAL PETROLEUM OIL COMPRISING DEMETALIZING AND DESULFURIZING SAID OIL IN CONTACT WITH HYDROGEN AND WITH AN ALUMINA BASE CATALYST INCORPORATING GROUP VI-B AND A GROUP VII METAL, THE IMPROVEMENT WHICH COMPRISES SAID CATALYST HAVING AT LEAST ABOUT 60% OF ITS PORE VOLUME CONTRIBUTED BY PORES HAVING DIAMETERS IN THE RANGE OF ABOUT 100 TO 200A, AT LEAST ABOUT 5% OF ITS PORE VOLUME CONTRIBUTED BY PORES HAVING DIAMETERS GREATER THAN 500A, AT LEAST ABOUT 5% OF ITS PORE VOLUME CONTRIBUTED BY PORES HAVING DIAMETERS LESS THAN 40A, AND HAVING A SURFACE AREA OF UP TO ABOUT 110M2/G.
Claim 3
Dependent Claim
41 words
The process as claimed in claim 1 wherein said contacting is carried out at a hydrogen pressure of about 500 to 3,000 p.s.i.g., a temperature of about 600.degree. to about 850.degree.F and a space velocity of about 0.1 to 5 LHSV.
Claim 4
Dependent Claim
47 words
The process as claimed in claim 2 wherein said demetalized and desulfurized oil is passed to a cracking step, said cracking being carried out under the following conditions: 800.degree. to 1,500.degree.F temperature, 1 to 5 atmospheres pressure, and a space velocity of about 1 to 1000 WHSV.
Claim 5
Dependent Claim
38 words
The process as claimed in claim 2 wherein said demetalized and desulfurized oil is passed to a hydrocracking step, said hydrocracking being carried out under the following conditions: 400.degree. to 1,000.degree.F temperature and 100 to 3,500 p.s.i.g. pressure.
Claim 6
Dependent Claim
38 words
The process as claimed in claim 2 wherein said demetalized and desulfurized oil is passed to a coking step, said coking being carried out under the following conditions: 800.degree. to 1100.degree.F temperature and one to ten atmospheres pressure.
Claim 7
Dependent Claim
15 words
The process as claimed in claim 1 wherein said contacting occurs at the following conditions:
Claim 8
Dependent Claim
38 words
The process as claimed in claim 6 wherein said demetalized and desulfurized oil is passed to a coking step, said coking being carried out under the following conditions: 800.degree. to 1,100.degree.F temperature and 1 to 10 atmospheres pressure.
References Cited (Backward Citations)
US3630888A
Cited
US3666685A
Cited
US3785967A
Cited
US3712861A
Cited
US3714032A
Cited
US3770617A
Cited
US3819509A
Cited
US3814683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |