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US4192736A
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Removal of indigenous metal impurities from an oil with phosphorus oxide-promoted alumina
Assignee: Chevron USA Inc
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Filing: 1978-11-29
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Granted: 1980-03-11
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Expires: 1998-11-29
Abstract
Abstract Indigenous metal impurities in an oil are removed by contacting the oil with a novel solid consisting essentially of porous alumina containing a minor amount of phosphorus. The contacting is carried out under oil demetallizing conditions.
Inventors
- 👤 Harris E. Kluksdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:12
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
115 words
In a process for upgrading an oil selected from the group consisting of petroleum and syncrude oils, fractions and mixtures thereof containing at least a substantial content of at least one metal impurity selected from the group consisting of metal impurities indigenous to said oils, by contact thereof under oil demetallizing conditions with a solid consisting esentially of alumina containing an oxide promoter, the improvement comprising (1) carrying out said contact with an alumina having a pore volume of at least 0.3 cc per gram and said oxide promoter being phosphorus oxide in the range of from about 0.1 to 10 parts; calculated as phosphorus, for each 100 parts of alumina in parts by weight.
Claim 2
Dependent Claim
115 words
In a process for upgrading an oil selected from the group consisting of petroleum and syncrude oils, fractions and mixtures thereof containing at least a substantial content of at least one metal impurity selected from the group consisting of metal impurities indigenous to said oils, by contact thereof under oil demetallizing conditions with a solid consisting esentially of alumina containing an oxide promoter, the improvement comprising (1) carrying out said contact with an alumina having a pore volume of at least 0.3 cc per gram and said oxide promoter being phosphorus oxide in the range of from about 0.1 to 10 parts; calculated as phosphorus, for each 100 parts of alumina in parts by weight.
Claim 3
Dependent Claim
48 words
A process as in claim 1 wherein at least 50% of said pore volume is in macropores having diameters in the 60 to 250 Angstrom range and an amount in the range 5 to 10% of said pore volume is in macropores having diameters above about 1000 Angstroms.
Claim 4
Dependent Claim
16 words
A process as in claim 1 wherein said solid contains about 1 weight percent of phosphorus.
Claim 5
Dependent Claim
40 words
A process as in claim 1 wherein said conditions include a temperature of about 400° C., a hydrogen rate, SCM per kiloliter, of about 200, a pressure of about 170 atmospheres gauge, and a space velocity, V/V/Hr, of about 1.
References Cited (Backward Citations)
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Cited
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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) | 1983-03-11 | 1983-09-10 | 1984-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-11 | 1987-09-10 | 1988-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-11 | 1991-09-10 | 1992-03-11 | $7700.00 | Window Closed / Lapsed |