US4121997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating a petroleum distillate with a supported metal phthalocyanine and an alkaline reagent containing alkanolamine halide
Assignee: Honeywell UOP LLC
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Filing: 1978-01-11
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Granted: 1978-10-24
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Expires: 1998-01-11
Abstract
Abstract A process for treating a mercaptan-containing sour petroleum distillate is disclosed. The process comprises passing said distillate in admixture with an oxidizing agent through a fixed bed of a supported metal phthalocyanine catalyst in the presence of an alkanolamine halide, e.g., ethanoltrimethylammonium chloride, comingled with an alkaline reagent.
Inventors
- 👤 Robert R. Frame
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:07
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
86 words
A process for treating a mercaptan-containing sour petroleum distillate which comprises passing said distillate in admixture with an oxidizing agent through a fixed bed of a supported metal phthalocyanine catalyst in the presence of an alkanolamine halide comingled with an alkaline reagent to oxidize the mercaptan present in said distillate, said alkanolamine halide having the structural formula ##STR3## wherein R is an alkylene radical containing up to about 3 carbon atoms, Y is a hydroxyl radical or hydrogen, and X is chloride, bromide, fluoride or iodide.
Claim 2
Dependent Claim
86 words
A process for treating a mercaptan-containing sour petroleum distillate which comprises passing said distillate in admixture with an oxidizing agent through a fixed bed of a supported metal phthalocyanine catalyst in the presence of an alkanolamine halide comingled with an alkaline reagent to oxidize the mercaptan present in said distillate, said alkanolamine halide having the structural formula ##STR3## wherein R is an alkylene radical containing up to about 3 carbon atoms, Y is a hydroxyl radical or hydrogen, and X is chloride, bromide, fluoride or iodide.
Claim 3
Dependent Claim
16 words
The process of claim 1 further characterized in that said alkanolamine halide is an alkanolamine chloride.
Claim 4
Dependent Claim
16 words
The process of claim 1 further characterized in that said alkanolamine halide is an alkanoltrialkylammonium chloride.
Claim 5
Dependent Claim
16 words
The process of claim 1 further characterized in that said alkanolamine halide is an ethanoltrialkylammonium chloride.
Claim 6
Dependent Claim
15 words
The process of claim 1 further characterized in that said alkanolamine halide is ethanoltrimethylammonium chloride.
Claim 7
Dependent Claim
29 words
The process of claim 1 further characterized in that said alkanolamine halide is employed with said alkaline reagent in a mole ratio of from about 0.1:1 to about 1:1.
Claim 8
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 9
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.
Claim 10
Dependent Claim
32 words
The process of claim 1 further characterized in that said sour petroleum distillate is passed through said catalyst bed at a liquid hourly space velocity of from about 0.1 to about 10.
Claim 11
Dependent Claim
16 words
The process of claim 1 further characterized in that said catalyst is a charcoal-supported cobalt phthalocyanine.
Claim 12
Dependent Claim
19 words
The process of claim 1 further characterized in that said catalyst is a charcoal-supported sulfonated derivative of cobalt phthalocyanine.
Claim 13
Dependent Claim
17 words
The process of claim 1 further characterized in that said catalyst is a charcoal-supported cobalt phthalocyanine monosulfonate.
Claim 14
Dependent Claim
22 words
The process of claim 1 further characterized in that said catalyst comprises from about 0.1 to about 10 wt. % metal phthalocyanine.
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 |