METHOD & PROCESS PRINCIPLE
Compression/absorption and fractionation produce controlled propane, butane and fuel-gas streams.
UNKA ENGINEERINGEPC CONTRACTORRecovers and separates refinery C₃/C₄ components from stabilizer, FCC or other gas streams.

Compression/absorption and fractionation produce controlled propane, butane and fuel-gas streams.
Compressors, absorbers, deethanizer, depropanizer, debutanizer, condensers, reboilers and LPG storage interface.
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. Gas composition, recovery target, LPG specifications and refrigeration/cooling conditions.
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.
Hazard review, alarms and interlocks, relief/vent/drain philosophy, hazardous-area classification, maintainable isolation, fire protection, emergency shutdown interfaces and environmental controls.
Refinery gas plants, FCC gas concentration and LPG production.
ASME, API 520/521, API 2510, NFPA 58; EN/DIN/GOST pressure-vessel basis where selected.
ASME, API 520/521, API 2510, NFPA 58; EN/DIN/GOST pressure-vessel basis where selected.