Claims
- 1. A method of treating a mercaptan-containing sour petroleum distillate by contacting said distillate at oxidation conditions with a catalytic composite prepared by contacting a molecular sieve support with a substituted ammonium compound represented by the structural formula: ##STR2## wherein R is a hydrocarbon radical containing up to about 20 carbon atoms and selected from the group consisting of alkyl, cycloalkyl, aryl, alkaryl and aralkyl, R' is a substantially straight-chain alkyl radical containing from about 5 to about 20 carbon atoms, and X is an anion selected from the group consisting of halide, nitrate, nitrite, sulfate, phosphate, acetate, citrate, tartrate and hydroxide, drying the resulting composite, thereafter contacting the resulting composite with a metal chelate and with an alkali metal hydroxide, said alkali metal hydroxide being in a weight ratio with said molecular sieve support from about 0.1:1 to about 1:1, and thereafter drying the resulting catalytic composite.
- 2. The method of claim 1 wherein one R radical of said substituted ammonium compound is an alkyl radical having from about 12 to about 18 carbon atoms, another R radical of said substituted ammonium compound is a benzyl radical, and the X anion of said substituted ammonium compound is an hydroxide.
- 3. The method of claim 1 wherein said molecular sieve support is a Type X molecular sieve.
- 4. The method of claim 1 wherein said molecular sieve support is a Type X molecular sieve of the soda form.
- 5. The method of claim 1 wherein said alkali metal hydroxide is in a weight ratio with said molecular sieve support of from about 0.3:1 to about 0.5:1.
- 6. The method of claim 1 wherein said alkali metal hydroxide is in a weight ratio with said molecular sieve support of from about 0.3:1 to about 0.5:1 and said substituted ammonium compound is in a weight ratio with said molecular sieve support of from about 0.1:1 to about 0.3:1.
- 7. The method of claim 1 wherein said substituted ammonium compound is dimethylbenzylalkylammonium hydroxide.
- 8. The method of claim 1 wherein said substituted ammonium compound is a substituted ammonium halide.
- 9. The method of claim 1 wherein said substituted ammonium compound is dimethylbenzylalkylammonium chloride.
- 10. The method of claim 1 wherein said alkali metal hydroxide is sodium hydroxide.
- 11. The method of claim 1 wherein said alkali metal hydroxide is potassium hydroxide.
- 12. The method of claim 1 wherein said metal chelate is a metal phthalocyanine.
- 13. The method of claim 1 wherein said metal chelate is cobalt phthalocyanine monsulfonate.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a division of copending application Ser. No. 111,752 filed on Jan. 14, 1980, now U.S. Pat. No. 4,290,916, which in turn is a continuation-in-part of application Ser. No. 80,638 filed on Oct. 1, 1979, now U.S. Pat. No. 4,276,194, said applications hereby incorporated herein by reference thereto.
US Referenced Citations (13)
Divisions (1)
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Date |
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111752 |
Jan 1980 |
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Continuation in Parts (1)
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80638 |
Oct 1979 |
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