UNKA ENGINEERINGEPC CONTRACTORSevere thermal conversion of vacuum residue into lighter products and petroleum coke.
Feed heating, coke-drum cycles, vapor fractionation, blowdown, cutting and coke handling. The operating sequence, recycle paths, start-up/shutdown cases and normal/turndown behavior are defined before equipment finalization.
Coker heater, coke drums, fractionator, blowdown system, cutting equipment and coke handling. Materials, design margins, maintainability, isolation, access, lifting and spare philosophy are coordinated with the approved operating cases.
Feed assay/composition, design capacity, operating pressure and temperature, product specifications, turndown, utilities, battery limits and site ambient conditions.
Cycle/yield basis, heater and drum design, switching philosophy, relief study, PFD/P&ID and layout. The package also includes line/equipment lists, relief and utility summaries, layouts or 3D interfaces, vendor-document requirements, inspection plans and commissioning inputs as applicable.
DCS regulatory control, critical interlocks, relief and depressuring, gas/fire detection, hazardous-area classification, HAZOP actions and applicable SIS/ESD functions.
Deep-conversion refineries processing high-residue crude slates. Capacity, product quality, consumption and emissions commitments are confirmed only after the representative feed and project Design Basis are approved.
API 560, ASME, API 521, coke-drum fatigue and high-temperature piping practices. The contractual code basis is selected by destination and client specification. ASME/API/TEMA, EN/DIN and GOST/EAC requirements are not mixed without an approved code-equivalency and authority review.
API 560, ASME, API 521, coke-drum fatigue and high-temperature piping practices.