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US4124494A
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Treating a petroleum distillate with a supported metal phthalocyanine and an alkanolamine hydroxide
Assignee: Honeywell UOP LLC
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Filing: 1978-01-11
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Granted: 1978-11-07
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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 hydroxide, e.g., ethanoltrimethylammonium hydroxide.
Inventors
- 👤 Robert R. Frame
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:28
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/10; B; B01; B01J; B01J31/00; B01J31/02; B01J31/0234; B01J31/0235; B01J31/0239; B01J31/16; B01J31/1616; B01J31/18; B01J31/1805; B01J31/181; B01J31/1825; B01J31/183; B01J2531/00; B01J2531/02; B01J2531/0238; B01J2531/0241; B01J2531/025; B01J2531/80; B01J2531/84; B01J2531/845; B01J2540/00; B01J2540/30; B01J2540/32
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
72 words
A process for treating a mercaptan-containing sour petroleum distillate to oxidize the mercaptan present in said distillate, said 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 hydroxide having the structural formula ##STR3## wherein R is an alkylene radical containing up to about 3 carbon atoms, and X is a hydroxyl radical or hydrogen.
Claim 2
Dependent Claim
72 words
A process for treating a mercaptan-containing sour petroleum distillate to oxidize the mercaptan present in said distillate, said 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 hydroxide having the structural formula ##STR3## wherein R is an alkylene radical containing up to about 3 carbon atoms, and X is a hydroxyl radical or hydrogen.
Claim 3
Dependent Claim
16 words
The process of claim 1 further characterized in that said alkanolamine hydroxide is an alkanoltrialkylammonium hydroxide.
Claim 4
Dependent Claim
16 words
The process of claim 1 further characterized in that said alkanolamine hydroxide is an ethanoltrialkylammonium hydroxide.
Claim 5
Dependent Claim
15 words
The process of claim 1 further characterized in that said alkanolamine hydroxide is ethanoltrimethylammonium hydroxide.
Claim 6
Dependent Claim
35 words
The process of claim 1 further characterized in that said alkanolamine hydroxide is present in an amount equivalent to from about 1 to about 500 ppm. based on the weight of the sour petroleum distillate.
Claim 7
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 8
Dependent Claim
16 words
The process of claim 1 further characterized in that said catalyst is a charcoal-supported cobalt phthalocyanine.
Claim 9
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 10
Dependent Claim
17 words
The process of claim 1 further characterized in that said catalyst is a charcoal-supported cobalt phthalocyanine disulfonate.
Claim 11
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)
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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) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |