US4354927A
Expired / Lapsed
US
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Method of removing contaminants from hydrocarbonaceous fluids using high-sodium alumina
Assignee: Mobil Oil AS
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Filing: 1981-01-06
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Granted: 1982-10-19
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Expires: 2001-01-06
Abstract
Abstract Catalyst poisoning contaminants such as arsenic and selenium are removed from hydrocarbonaceous fluids particularly shale oil by contact with high-sodium alumina in the presence of hydrogen; saturation of conjugated diolefins is also effected.
Inventors
- 👤 Stuart S. Shih
- 👤 Philip J. Angevine
- 👤 Stephen M. Oleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:45
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/02; B01J23/04; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
73 words
A method for reducing contaminant content of a hydrocarbonaceous fluid, said contaminant being selected from the group consisting of arsenic and selenium, said method comprising: contacting said fluid with a particulate, porous catalyst consisting essentially of alumina having a sodium content between 0.1 and 10 percent by weight, in the presence of hydrogen, at a temperature ranging between about 230° and 475° C. and a pressure ranging between about 10 and 200 atmosphere.
Claim 2
Independent Claim
73 words
A method for reducing contaminant content of a hydrocarbonaceous fluid, said contaminant being selected from the group consisting of arsenic and selenium, said method comprising: contacting said fluid with a particulate, porous catalyst consisting essentially of alumina having a sodium content between 0.1 and 10 percent by weight, in the presence of hydrogen, at a temperature ranging between about 230° and 475° C. and a pressure ranging between about 10 and 200 atmosphere.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said alumina is gamma alumina.
Claim 4
Dependent Claim
15 words
The method of claim 1 wherein said temperature ranges between about 280° and 370° C.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein said pressure ranges between about 30 and 140 atmospheres.
Claim 6
Dependent Claim
18 words
The method of claim 1 wherein said sodium content ranges between about 0.5 and 5 percent by weight.
Claim 7
Dependent Claim
22 words
The method of claim 1 wherein the contact time of said fluid and said catalyst ranges between about 1 and 10 hours.
Claim 8
Dependent Claim
20 words
The method of claim 1 wherein said contacting takes place in a guard bed reactor with a fixed catalyst bed.
Claim 9
Dependent Claim
20 words
The method of claim 1 wherein said contacting takes place in a guard bed reactor with a free catalyst bed.
Claim 10
Dependent Claim
17 words
The method of claim 1 wherein said time of contact ranges between about 0.3 and 5 hours.
Claim 11
Dependent Claim
23 words
The method of claim 6 wherein hydrogen is circulated at a rate between 150 and 1780 m 3 /m 3 of fluid processed.
Claim 12
Dependent Claim
24 words
The method of claim 6 wherein hydrogen is circulated at a rate of about 350 to 900 m 3 /m 3 of fluid processed.
Claim 13
Dependent Claim
11 words
The method of claim 1 wherein said fluid is shale oil.
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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) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |