METHOD & PROCESS PRINCIPLE
A selected solvent preferentially dissolves undesirable aromatic/oxidized components; phase separation creates raffinate and extract streams.
WASTE-OIL PROCESS UNITS
Waste Oil Solvent Extraction
Improves color, stability and impurity distribution by selective liquid–liquid extraction.
MAIN EQUIPMENT & PACKAGE LIMITS
Extractor/contactor, mixers or column internals, settlers, solvent tanks, pumps, heat exchangers and analyzers.
CRITICAL DESIGN INPUTS
Oil composition, solvent selectivity, solvent-to-oil ratio, temperature, phase density/viscosity, separation time and product target.
ENGINEERING DELIVERABLES
Design Basis, material balance, PFD, P&ID, equipment and instrument datasheets, line/equipment lists, control narrative, cause-and-effect, layout/3D interfaces, inspection plan, operating and commissioning procedures.
AUTOMATION, SAFETY & HSE
Closed handling, relief/vent/drain routing, alarms and trips, hazardous-area classification, HAZOP actions, maintainable isolation, fire protection and emergency shutdown interfaces.
APPLICATIONS & PERFORMANCE BASIS
Base-oil finishing and selected hydrocarbon purification subject to laboratory validation.
CODES, STANDARDS & QUALITY BASIS
ASME VIII/B31.3, NFPA/IEC hazardous area, solvent SDS; EN/DIN/GOST chemical-handling requirements as selected.
CONTRACTUAL CODE BASIS
ASME VIII/B31.3, NFPA/IEC hazardous area, solvent SDS; EN/DIN/GOST chemical-handling requirements as selected.