METHOD & PROCESS PRINCIPLE
Wash water and demulsifier are mixed with heated crude; electrostatic coalescence separates brine and solids.
CRUDE OIL REFINERY SYSTEMS
Crude Desalting & Dehydration
Removes inorganic salts, free/emulsified water and suspended solids before the preheat train and furnace.
MAIN EQUIPMENT & PACKAGE LIMITS
One- or two-stage electrostatic desalter, mixing valve, wash-water system, transformer, brine handling, pumps and analyzers.
CRITICAL DESIGN INPUTS
Representative crude assay including API gravity/density, TBP or SimDist, sulfur, TAN, CCR/MCR, metals, salt, water/sediment, light ends and product targets; site ambient data, utilities and battery limits. Required outlet salt and BS&W, wash-water quality and effluent limits.
ENGINEERING DELIVERABLES
Design Basis, heat and material balance where applicable, PFD, P&ID, datasheets, line/equipment lists, layout and 3D interfaces, control and safeguarding documents, inspection plan, operating and commissioning procedures.
AUTOMATION, SAFETY & HSE
Hazard review, alarms and interlocks, relief/vent/drain philosophy, hazardous-area classification, maintainable isolation, fire protection, emergency shutdown interfaces and environmental controls.
APPLICATIONS & PERFORMANCE BASIS
CDU corrosion/fouling protection and sour-crude processing.
CODES, STANDARDS & QUALITY BASIS
ASME VIII, API/NACE materials practices, IEC hazardous area; EN/DIN or GOST pressure/electrical conformity by contract.
CONTRACTUAL CODE BASIS
ASME VIII, API/NACE materials practices, IEC hazardous area; EN/DIN or GOST pressure/electrical conformity by contract.