Removal of metals and water-insoluble materials from desalter emulsions

Patent · Tue Jun 15 00:00:00 EDT 1993

OSTI ID:6228676

Goyal, S K; Mosby, J F; Treadman, II, J E

A process for removing metals and insoluble materials from crude oil is described comprising the steps of: blending crude oil with water and desalting chemicals; charging the oil blend to a desalting chamber and passing it through an electrical field whereby agglomeration of suspended insoluble materials occurs and layers of clean oil, brine and oil-brine interface emulsion are formed; withdrawing the oil and brine; measuring the volume of the emulsion layer; withdrawing a portion of the emulsion layer; blending the withdrawn emulsion with up to 2 volumes of aromatic-rich hydrocarbon containing at least 20% aromatics by volume; maintaining the blend at a temperature of 100 to 300 F and a positive pressure; and subjecting the blend to a force of at least about 500 g, whereby oil free of at least 90% of suspended particulates and water results.

• Assignee: Amoco Corp., Chicago, IL (United States)
• Patent Number(s): US 5219471; A
• Application Number: PPN: US 7-790456
• OSTI ID: 6228676
• Resource Relation: Patent File Date: 12 Nov 1991
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM
DEMETALLIZATION
DEMINERALIZATION
AGGLOMERATION
AROMATICS
BRINES
CENTRIFUGATION
ELECTRIC FIELDS
EMULSIONS
METALS
MINERALS
MIXING
PARTICULATES
PRESSURIZATION
REAGENTS
REMOVAL
SEPARATION PROCESSES
WATER
WATER REMOVAL
COLLOIDS
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLES
020400* - Petroleum- Processing