US4746419A
Expired / Lapsed
US
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Process for the hydrodemetallation hydrodesulfuration and hydrocracking of a hydrocarbon feedstock
Assignee: BP Corp North America Inc
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Filing: 1987-07-09
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Granted: 1988-05-24
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Expires: 2007-07-09
Abstract
Abstract Disclosed is an improved hydroconversion process for the hydroconversion of heavy hydrocarbon feedstocks containing asphaltenes, metals, and sulfur compounds which process minimizes the production of carbonaceous insoluble solids and catalyst attrition rates. The process is characterized by the use of a catalyst which has about 0.1 to about 0.3 cc/gm of its pore volume in pores having diameters greater than 1,200Å and no more than 0.1 cc/gm of its pore volume in pores having diameters greater than 4,000Å.
Inventors
- 👤 Lawrence B. Peck
- 👤 Albert L. Hensley
- 👤 George L. Ott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:26
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/10; C10G49/12; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; C10G45/14; C10G45/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
128 words
A process for the hydrodemetallation, hydrodesulfurization, and hydrocracking of a hydrocarbon feedstock containing asphaltenes, and Shell hot filtration solids precursors and conversion of at least 30 vol. % of the feedstock fraction boiling over 1,000° F. to material boiling below 1,000° F. wherein the formation of Shell hot filtration solids is maintained below a level of about 1.0 wt. % which comprises contacting said feedstock in at least one ebullated bed with hydrogen under hydrocracking conditions with a catalyst comprising a porous inorganic oxide wherein said catalyst has a pore volume of pores having a diameter greater than about 1,200 Angstroms of about 0.2 to about 0.3 cc/gm and has no more than about 0.15 cc/gm pore volume in pores having a diameter greater than about 4,000 Angstroms.
Claim 2
Dependent Claim
128 words
A process for the hydrodemetallation, hydrodesulfurization, and hydrocracking of a hydrocarbon feedstock containing asphaltenes, and Shell hot filtration solids precursors and conversion of at least 30 vol. % of the feedstock fraction boiling over 1,000° F. to material boiling below 1,000° F. wherein the formation of Shell hot filtration solids is maintained below a level of about 1.0 wt. % which comprises contacting said feedstock in at least one ebullated bed with hydrogen under hydrocracking conditions with a catalyst comprising a porous inorganic oxide wherein said catalyst has a pore volume of pores having a diameter greater than about 1,200 Angstroms of about 0.2 to about 0.3 cc/gm and has no more than about 0.15 cc/gm pore volume in pores having a diameter greater than about 4,000 Angstroms.
Claim 3
Dependent Claim
26 words
The process of claim 1 wherein said catalyst further comprises a hydrogenation component selected from the group consisting of Group VIB metals and Group VIII metals.
Claim 4
Dependent Claim
35 words
The process of claim 2 wherein said Group VIB metal is present in an amount ranging from about 3.0 to about 15.0 wt. % calculated as the oxide thereof and based on total catalyst weight.
Claim 5
Dependent Claim
12 words
The process of claim 3 wherein said Group VIB metal is molybdenum.
Claim 6
Dependent Claim
23 words
The process of claim 3 wherein said catalyst further comprises a Group VIII metal selected from the group consisting of nickel and cobalt.
Claim 7
Dependent Claim
33 words
The process of claim 5 wherein said Group VIII metal is present in an amount ranging from about 0.4 to 4.0 wt. % calculated as an oxide and based on total catalyst weight.
Claim 8
Dependent Claim
41 words
The process of claim 4 wherein said molybdenum is present in an amount ranging from 0.75 to 1.25 wt. % as MoO 3 and based on total catalyst weight and per 30 m 2 /g BET surface area of the catalyst.
Claim 9
Dependent Claim
57 words
The process of claim 7 wherein said Group VIII metal selected from the group consisting of cobalt and nickel is present in an amount such that the weight ratio of the cobalt and nickel calculated as CoO and NiO, respectively, to molybdenum calculated as MoO 3 is present in an amount ranging from about 0.2 to 0.3.
Claim 10
Dependent Claim
18 words
The process of claim 1 wherein said process is carried out in at least one ebullated bed reactor.
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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) | 1991-05-24 | 1991-11-23 | 1992-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-24 | 1995-11-23 | 1996-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-24 | 1999-11-23 | 2000-05-24 | $7700.00 | Window Closed / Lapsed |