Patent US4328127A successfully refreshed from Google Patents.
US4328127A
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Residua demetalation/desulfurization catalyst
Assignee: Mobil Oil AS
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Filing: 1980-09-16
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Granted: 1982-05-04
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Expires: 2000-09-16
Abstract
Abstract A new CoMo/alumina catalyst of improved stability and activity for demetalation/desulfurization of residual oil fractions having about 40 to 75% of its pore volume in 150-200 A diameter pores and up to about 5% of its pore volume in 500 A+ diameter pores.
Inventors
- 👤 Philip J. Angevine
- 👤 Stephen M. Oleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:17
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/60; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; B01J35/61; B01J35/613; B01J35/615; B01J35/63; B01J35/633; B01J35/635; B01J35/64; B01J35/647; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
148 words
In a hydrodemetalation-desulfurization catalyst comprising a hydrogenating component selected from the group of oxides or sulfides of at least one Group VI B or Group VIII metal composited with an alumina base which comprises theta and/or delta phase alumina and which composite has a surface area of 40-150 m 2 /g, a pore volume of 0.45-1.50 cc/g, and has not less than about 60% of its pore volume in pores with diameters of about 100 A to about 200 A; wherein said hydrogenating component consists essentially of about 2 to about 10 wt.% cobalt and about 5 to about 20 wt.% molybdenum; the improvement which comprises providing a composite having about 40 to 75% of its pore volume in pores with diameters of about 150 A to about 200 A and up to about 5% of its pore volume in pores with diameters greater than about 500 A.
Claim 2
Dependent Claim
148 words
In a hydrodemetalation-desulfurization catalyst comprising a hydrogenating component selected from the group of oxides or sulfides of at least one Group VI B or Group VIII metal composited with an alumina base which comprises theta and/or delta phase alumina and which composite has a surface area of 40-150 m 2 /g, a pore volume of 0.45-1.50 cc/g, and has not less than about 60% of its pore volume in pores with diameters of about 100 A to about 200 A; wherein said hydrogenating component consists essentially of about 2 to about 10 wt.% cobalt and about 5 to about 20 wt.% molybdenum; the improvement which comprises providing a composite having about 40 to 75% of its pore volume in pores with diameters of about 150 A to about 200 A and up to about 5% of its pore volume in pores with diameters greater than about 500 A.
Claim 3
Dependent Claim
23 words
The catalyst of claim 1 wherein said alumina base is produced by calcining an alpha monohydrate to a temperature of about 1600-2000° F.
References Cited (Backward Citations)
US4082695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-03 | 1985-11-02 | 1986-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-03 | 1989-11-02 | 1990-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-03 | 1993-11-02 | 1994-05-04 | $7700.00 | Window Closed / Lapsed |