Title:
METHOD FOR REDUCING THE NAPHTHENIC ACID CONTENT OF CRUDE OIL AND ITS FRACTIONS
Document Type and Number:
WIPO Patent Application WO2001079386
Kind Code:
A3
Abstract:
The present invention relates to a process for reducing naphthenic acid content of crude oils and its fractions in the presence of an aqueous base selected from Group IA and IIA hydroxides and ammonium hydroxide and mixtures thereof, a phase transfer agent at a temperature and pressure effective to produce a treated petroleum feed having a decreased naphthenic acid content and an aqueous phase containing naphthenate salts, phase transfer agent and base.
Inventors:
GREANEY MARK ALAN
Application Number:
PCT/US2001/009900
Publication Date:
July 25, 2002
Filing Date:
March 28, 2001
Export Citation:
Assignee:
EXXONMOBIL RES & ENG CO (US)
International Classes:
C10G19/02; C10G19/04; (IPC1-7): C10G19/02
Domestic Patent References:
| WO1999050375A1 | 1999-10-07 |
Foreign References:
| GB1309456A | 1973-03-14 | |||
| US5961821A | 1999-10-05 |
Other References:
CHARLES M. STARKS: "Interfacial area generation in two-phase systems and its effect on kinetics of phase transfer catalyzed reactions", TETRAHEDRON, vol. 55, 1999, pages 6261 - 6274, XP004165570
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