US3936371A
Expired / Lapsed
US
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Method for removing vanadium, nickel, and sulfur from hydrocarbon oils
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1974-03-14
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Granted: 1976-02-03
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Expires: 1994-03-14
Abstract
Abstract A hydrocarbon oil, particularly a heavy hydrocarbon oil, containing vanadium, nickel, sulfur and asphaltenes is brought into contact with red mud at an elevated temperature in the presence of hydrogen. The treatment removes vanadium, nickel and asphaltenes from oil in high yields.
Inventors
- 👤 Shigeru Ueda
- 👤 Yoshinori Nakata
- 👤 Shinichi Yokoyama
- 👤 Naoyuki Todo
- 👤 Yuji Yoshida
- 👤 Tadao Ishii
- 👤 Gen Takeya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:20
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/745; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
72 words
A method for removing vanadium, nickel, sulfur and asphaltenes from hydrocarbon oils comprising contacting said hydrocarbon oil with red mud having from 18 - 25% by wt. aluminum oxide, 15 - 20% by wt. silicon dioxide, 30 - 40% by wt. ferric oxide, 2 - 8% by wt. titanium dioxide, and 8 - 12% by wt. of matter that is lost by ignition, at elevated temperatures and in the presence of hydrogen.
Claim 2
Independent Claim
72 words
A method for removing vanadium, nickel, sulfur and asphaltenes from hydrocarbon oils comprising contacting said hydrocarbon oil with red mud having from 18 - 25% by wt. aluminum oxide, 15 - 20% by wt. silicon dioxide, 30 - 40% by wt. ferric oxide, 2 - 8% by wt. titanium dioxide, and 8 - 12% by wt. of matter that is lost by ignition, at elevated temperatures and in the presence of hydrogen.
Claim 3
Dependent Claim
35 words
A method according to claim 1, wherein the hydrocarbon oil is at least one member selected from the group consisting of crude oil, topped crude oil, heavy oil, asphalt, tar, sand oil and shale oil.
Claim 4
Dependent Claim
18 words
A method according to claim 1, wherein the elevated temperature falls in a range between 350° and 500°C.
Claim 5
Dependent Claim
23 words
A method according to claim 1, wherein the amount of red mud is at least 1 percent by weight based on hydrocarbon oil.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |