Process vessels & electrodes
Vessels, internal distribution and electrodes work together for coalescence and settling.
Shenyang Sibian Group
ELECTROSTATIC DESALTER
Engineered for heavy & viscous crude
Over 60 years of manufacturing heritage
Through Shenyang No.4 Transformer Factory, founded in 1961.
Our vision: dependable crude oil treatment through thoughtful engineering and lasting customer support.
DESALTING AND DEHYDRATION IN ONE PROCESS
Inorganic salts in crude oil are carried mainly in the entrained water phase. Wash water and, where required, demulsifier transfer the salts into water; a high-voltage field then enlarges fine droplets so gravity can separate them from the oil.
The package can be configured around crude properties, throughput, downstream feed requirements, site utilities, and control boundaries.
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Core product · Crude oil treatment
Desalting & dehydration for heavy and viscous crude
Our focus is heavy and viscous crude. We coordinate process, mechanical, electrical and control requirements around crude properties, available heating, throughput and outlet targets. The agreed project scope defines the supply boundary.
High-voltage power & protection
Power supplies, feedthroughs and protection are configured for the crude and unit duty.
Wash water, mixing & piping
Coordinated wash-water injection, controlled mixing, drainage recycle and supporting piping.
Instrumentation & control interfaces
Flow, temperature, pressure, interface and electrical monitoring within defined control boundaries.
- Crude feed
- Stage 1
- Stage 2
- Treated crude
Process · Two stages working together
TWO-STAGE ELECTRIC DESALTING PROCESS
A typical process includes crude heating, wash-water and demulsifier dosing, controlled mixing, primary electrostatic coalescence, secondary polishing, and brine discharge or recycle.
Water ratio, mixing intensity, electric-field arrangement, and operating window are determined from crude properties, unit load, and downstream targets.
VIEW THE PROCESSShenyang Sibian Group · Manufacturing
From vessel fabrication to package assembly
Workshop and assembly images showing desalter vessels and supporting equipment at different manufacturing stages.
Vessel construction, package configuration and inspection requirements follow the applicable project drawings and specifications.
Explore manufacturing · View all workshop photosShenyang Sibian Group · Project experience
Refinery & overseas experience
Selected from the project records of Shenyang No.4 Transformer Factory, part of Shenyang Sibian Group, covering refinery and overseas desalting installations.
Beijing, China2015
Sinopec Yanshan · Refinery No. 1
8 milliontonnes / year
Electrostatic desalting package
View project
Technical insights
Start with the operating question
Practical operating questions from our group technical archive. Apply these guides alongside site data, approved procedures and project-specific engineering review.
Why Is Desalted Crude Salt High When the Water Result Looks Normal?
A step-by-step guide to troubleshooting high salt in desalted crude when the water result appears normal, covering sampling, wash water, mixing, temperature and crude changes.
Read the insightWhen the Desalter Interface Will Not Stay Stable
A practical refinery guide to diagnosing unstable oil-water interface in crude-oil electrostatic desalters without treating a single instrument reading as the whole process.
Read the insight