Patent US4141819A successfully refreshed from Google Patents.
US4141819A
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Process for treating a sour petroleum distillate
Assignee: Honeywell UOP LLC
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Filing: 1978-01-10
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Granted: 1979-02-27
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Expires: 1998-01-10
Abstract
Abstract A process for treating a mercaptan-containing sour petroleum distillate is disclosed. The process comprises contacting said distillate with a supported metal phthalocyanine catalyst in the presence of an alkaline reagent at oxidation conditions, said catalyst having been prepared by impregnating a solid adsorptive support with a common alcoholic solution of a metal phthalocyanine and a carboxylic acid.
Inventors
- 👤 David H. J. Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:03
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/10; B; B01; B01J; B01J31/00; B01J31/02; B01J31/0215; B01J31/0217; B01J31/0225; B01J31/04; B01J31/16; B01J31/1616; B01J31/18; B01J31/1805; B01J31/181; B01J31/1825; B01J31/183; B01J21/00; B01J21/18; B01J2531/00; B01J2531/02; B01J2531/0238; B01J2531/0241; B01J2531/025; B01J2531/80; B01J2531/84; B01J2531/845
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
A process for treating a mercaptan-containing sour petroleum distillate which comprises contacting said distillate with a supported metal phthalocyanine catalyst in the presence of an alkaline reagent at oxidation conditions, said catalyst having been prepared by impregnating a solid adsorptive support with a common alcoholic solution of a metal phthalocyanine and a carboxylic acid containing up to about 10 carbon atoms in a weight ratio of acid to phthalocyanine of from about 1.5:1 to about 15:1, and thereafter drying the resulting catalytic composite.
Claim 2
Dependent Claim
83 words
A process for treating a mercaptan-containing sour petroleum distillate which comprises contacting said distillate with a supported metal phthalocyanine catalyst in the presence of an alkaline reagent at oxidation conditions, said catalyst having been prepared by impregnating a solid adsorptive support with a common alcoholic solution of a metal phthalocyanine and a carboxylic acid containing up to about 10 carbon atoms in a weight ratio of acid to phthalocyanine of from about 1.5:1 to about 15:1, and thereafter drying the resulting catalytic composite.
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 carboxylic acid is an aliphatic monobasic carboxylic acid.
Claim 5
Dependent Claim
19 words
The process of claim 1 further characterized in that said carboxylic acid is a saturated aliphatic monobasic carboxylic acid.
Claim 6
Dependent Claim
15 words
The process of claim 1 further characterized in that said carboxylic acid is acetic acid.
Claim 7
Dependent Claim
16 words
The process of claim 1 further characterized in that said alcoholic solution is a methanolic solution.
Claim 8
Dependent Claim
16 words
The process of claim 1 further characterized in that said alcoholic solution is an ethanolic solution.
Claim 9
Dependent Claim
16 words
The process of claim 1 further characterized in that said metal phthalocyanine is a cobalt phthalocyanine.
Claim 10
Dependent Claim
17 words
The process of claim 1 further characterized in that said metal phthalocyanine is a cobalt phthalocyanine monosulfonate.
Claim 11
Dependent Claim
32 words
The process of claim 1 further characterized in that said alkaline reagent is an alkali metal hydroxide in from about a 2 wt. % to about a 30 wt. % aqueous solution.
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) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |