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Patent Searching and Data


Title:
PROCESS, METHOD AND SYSTEM FOR REMOVING HEAVY METALS FROM FLUIDS
Document Type and Number:
WIPO Patent Application WO/2016/069450
Kind Code:
A3
Abstract:
Particulate mercury, in the form of metacinnabar, is removed from crude oil by thermally treating the crude oil at temperatures in a range from 150°C to 350°C and at a pressure sufficient to limit the amount of crude vaporizing to no more than 10 wt. %. In the thermal treatment, the particulate mercury is converted into elemental mercury, which can be removed by directly adsorption from the crude onto a support. In one embodiment, the elemental mercury can be removed by stripping the crude with a gas, and then adsorbing the mercury onto a support. The crude oil can be optionally treated prior to stabilization and contains 0.1 wt. % or more of C4-hydrocarbons. Following the thermal treatment, the treated crude is cooled and the pressure is reduced. The C4- hydrocarbons then vaporize from the crude and carry the elemental mercury with them. The elemental mercury in this hydrocarbon gas stream may then be removed by a solid adsorbent.

Inventors:
O'REAR DENNIS JOHN (US)
COOPER RUSSELL EVAN (US)
Application Number:
PCT/US2015/057321
Publication Date:
June 23, 2016
Filing Date:
October 26, 2015
Export Citation:
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Assignee:
CHEVRON USA INC (US)
International Classes:
C10G31/06
Domestic Patent References:
WO2012036986A22012-03-22
WO2016004232A12016-01-07
Foreign References:
US20130225897A12013-08-29
US20100025184A12010-02-04
US5384040A1995-01-24
Attorney, Agent or Firm:
DIDOMENICIS, Karen R. et al. (P.O. Box 6006San Ramon, California, US)
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