Title:
METHOD FOR REDUCING MERCAPTANS IN HYDROCARBONS
Document Type and Number:
WIPO Patent Application WO/2012/057935
Kind Code:
A3
Abstract:
A method for reducing mercaptan concentration in a liquid hydrocarbon, comprising: contacting a mercaptan-rich liquid hydrocarbon having a first concentration of mercaptan sulfur with a composition comprising an oxidizing agent and water wherein the molar ratio of the oxidizing agent to mercaptan sulfur in the mercaptan-rich liquid hydrocarbon is from 3:1 to 10:1; and separating the water from the liquid hydrocarbon to yield a mercaptan-depleted liquid hydrocarbon having a second concentration of mercaptan sulfur, the second concentration being less than the first concentration; wherein a major amount of mercaptan compounds in the mercaptan-rich liquid hydrocarbon are converted to at least one sulfur oxoacid or salt thereof, having the formula: [RSOx]nY wherein R is a hydrocarbyl group; x is an integer from 1 to 3; n is 1 or 2; and Y is hydrogen, an alkaline metal, or alkaline earth metal.
Inventors:
HE ZUNQING (US)
ZHOU ZHEN (US)
LI LIN (US)
ZHOU ZHEN (US)
LI LIN (US)
Application Number:
PCT/US2011/052155
Publication Date:
June 14, 2012
Filing Date:
September 19, 2011
Export Citation:
Assignee:
CHEVRON USA INC (US)
HE ZUNQING (US)
ZHOU ZHEN (US)
LI LIN (US)
HE ZUNQING (US)
ZHOU ZHEN (US)
LI LIN (US)
International Classes:
C10G27/02; C10G27/06; C10G31/08; C10G33/00; C10L1/04
Foreign References:
| US20070227950A1 | 2007-10-04 | |||
| JPH091191A | 1997-01-07 | |||
| JPS5594625A | 1980-07-18 | |||
| US6015536A | 2000-01-18 |
Attorney, Agent or Firm:
FLAHERTY, Terrence M. et al. (Law DepartmentP.O. Box 600, San Ramon California, US)
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