Patent US4121998A successfully refreshed from Google Patents.
US4121998A
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Treating a petroleum distillate with a supported metal phthalocyanine and a polynuclear aromatic sulfonic acid
Assignee: Honeywell UOP LLC
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Filing: 1978-01-18
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Granted: 1978-10-24
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Expires: 1998-01-18
Abstract
Abstract A process for treating a mercaptan-containing sour petroleum distillate is disclosed. The process comprises contacting the distillate with a catalytic composite in the presence of an alkaline reagent at oxidation conditions. The catalytic composite comprises a solid adsorptive support impregnated with a polynuclear aromatic sulfonic acid and a metal phthalocyanine.
Inventors
- 👤 Robert R. Frame
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:30
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
69 words
A process for treating a mercaptan-containing sour petroleum distillate which comprises contacting said distillate with a catalytic composite in the presence of an alkaline reagent at oxidation conditions to oxidize the mercaptan present in said distillate, said catalytic composite comprising a solid adsorptive support impregnated with from about 0.1 to about 25 wt. % polynuclear aromatic sulfonic acid and from about 0.1 to about 10 wt. % metal phthalocyanine.
Claim 2
Dependent Claim
69 words
A process for treating a mercaptan-containing sour petroleum distillate which comprises contacting said distillate with a catalytic composite in the presence of an alkaline reagent at oxidation conditions to oxidize the mercaptan present in said distillate, said catalytic composite comprising a solid adsorptive support impregnated with from about 0.1 to about 25 wt. % polynuclear aromatic sulfonic acid and from about 0.1 to about 10 wt. % metal phthalocyanine.
Claim 3
Dependent Claim
16 words
The process of claim 1 further characterized in that said adsorptive support is an activated charcoal.
Claim 4
Dependent Claim
18 words
The process of claim 1 further characterized in that said polynuclear aromatic sulfonic acid is a naphthalenesulfonic acid.
Claim 5
Dependent Claim
18 words
The process of claim 1 further characterized in that said polynuclear aromatic sulfonic acid is a naphthalenedisulfonic acid.
Claim 6
Dependent Claim
22 words
The process of claim 1 further characterized in that said polynuclear aromatic sulfonic acid is an amino substituted polynuclear aromatic sulfonic acid.
Claim 7
Dependent Claim
22 words
The process of claim 1 further characterized in that said polynuclear aromatic sulfonic acid is a hydroxy substituted polynuclear aromatic sulfonic acid.
Claim 8
Dependent Claim
17 words
The process of claim 1 further characterized in that said metal phthalocyanine is a sulfonated metal phthalocyanine.
Claim 9
Dependent Claim
17 words
The process of claim 1 further characterized in that said metal phthalocyanine is a carboxylated metal phthalocyanine.
Claim 10
Dependent Claim
15 words
The process of claim 1 further characterized in that said metal phthalocyanine is cobalt phthalocyanine.
Claim 11
Dependent Claim
15 words
The process of claim 1 further characterized in that said metal phthalocyanine is vanadium phthalocyanine.
Claim 12
Dependent Claim
30 words
The process of claim 1 further characterized in that said alkaline reagent is sodium hydroxide in from about a 2 wt. % to about a 30 wt. % aqueous solution.
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) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |