US4003828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and process for removing sulfur and metal contaminants from hydrocarbon feedstocks
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1975-07-23
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Granted: 1977-01-18
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Expires: 1995-07-23
Abstract
Abstract Sulfur and metal contaminants, such as nickel, vanadium and iron, are removed from hydrocarbon feedstocks, by contacting the feedstocks at an elevated temperature and pressure in the presence of hydrogen and a catalyst comprising a hydrogenation component and a support material comprised of phosphorus oxide and alumina. The hydrogenation component includes a Group VIB and/or Group VIII metal of the Periodic Table, particularly molybdenum or tungsten and cobalt or nickel. The presence of phosphorus oxide in the catalyst composition has been found to impart increased catalytic activity for demetallization of metal-contaminated hydrocarbon feedstocks such as heavy petroleum crudes and residua.
Inventors
- 👤 Paul E. Eberly, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:25
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/188; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
90 words
A process for removing metal and sulfur contaminants from a feed stock which comprises (a) contacting a metal and sulfur contaminated feedstock in a conversion zone at 500-900° F in the presence of hydrogen with a catalyst comprising a hydrogenating component and a support component comprised of alumina having 1 to 6 wt.% phosphorus oxide expressed as P 2 0 5 incorporated therein based on the weight of the alumina and incorporated phosphorus oxide and (b) recovering from said conversion zone a feedstock having a reduced metal and sulfur content.
Claim 2
Dependent Claim
90 words
A process for removing metal and sulfur contaminants from a feed stock which comprises (a) contacting a metal and sulfur contaminated feedstock in a conversion zone at 500-900° F in the presence of hydrogen with a catalyst comprising a hydrogenating component and a support component comprised of alumina having 1 to 6 wt.% phosphorus oxide expressed as P 2 0 5 incorporated therein based on the weight of the alumina and incorporated phosphorus oxide and (b) recovering from said conversion zone a feedstock having a reduced metal and sulfur content.
Claim 3
Dependent Claim
28 words
The process of claim 1 wherein said feedstock contains more than 5 pm of vanadium and nickel and a hydrocarbon portion boiling above 1050° F at atmospheric pressure.
Claim 4
Dependent Claim
31 words
The process of claim 1 wherein said support contains 1.1 to 5.5 wt.% phosphorus oxide expressed as P 2 0 5 and is prepared by the formation of a cogel thereof.
Claim 5
Dependent Claim
25 words
The process of claim 3 wherein said hydrogenating component comprises a Group VIB metal or compound thereof and/or a Group VIII metal or compound thereof.
Claim 6
Dependent Claim
23 words
The process of claim 4 wherein said group VIB metal is molybdenum and/or tungsten and said Group VIII metal is nickel and/or cobalt.
Claim 7
Dependent Claim
97 words
A process for removing metal and sulfur contaminants from a feedstock which comprises contacting a feedstock containing more than 50 ppm of a metal selected from the group consisting of nickel, vanadium and mixtures thereof in a conversion zone at 500°-900° F in the presence of hydrogen with a catalyst comprising a hydrogenating component and a support comprised of alumina having 1 to 6 wt.% phosphorus oxide expressed at P 2 0 5 incorporated therein based on the weight of the alumia and incorporated phosphorus oxide said support prepared by the cogellation of alumina and phosphorus oxide.
Claim 8
Dependent Claim
97 words
A process for removing metal and sulfur contaminants from a feedstock which comprises contacting a feedstock containing more than 50 ppm of a metal selected from the group consisting of nickel, vanadium and mixtures thereof in a conversion zone at 500°-900° F in the presence of hydrogen with a catalyst comprising a hydrogenating component and a support comprised of alumina having 1 to 6 wt.% phosphorus oxide expressed at P 2 0 5 incorporated therein based on the weight of the alumia and incorporated phosphorus oxide said support prepared by the cogellation of alumina and phosphorus oxide.
Claim 9
Dependent Claim
35 words
The process of claim 6 wherein said support is prepared from a cogel produced by the reaction of an alkali metal aluminate with a phosphorus-containing acid and sulfuric acid and/or a salt of sulfuric acid.
Claim 10
Dependent Claim
19 words
The process of claim 7 wherein said phosphorus containing acid is phosphoric acid and said salt is aluminum sulfate.
Claim 11
Dependent Claim
25 words
The process of claim 8 wherein said hydrogenating component comprises a Group VIB metal or compound thereof and/or a Group VIII metal or compound thereof.
Claim 12
Dependent Claim
23 words
The process of claim 9 including the step of recovering from said conversion zone a feedstock having a reduced metal and sulfur content.
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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) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |