UNKA ENGINEERINGEPC CONTRACTORHydrocracking combines catalytic conversion with hydrogen to upgrade suitable heavy refinery streams. UNKA ENGINEERING develops the unit interfaces around feed properties, the selected process technology, hydrogen demand, separation requirements and the approved product slate.
Feed hydrotreating, catalytic cracking, high-pressure separation, recycle gas and product fractionation. The operating sequence, recycle paths, start-up/shutdown cases and normal/turndown behavior are defined before equipment finalization.
Reactors, charge heater, high-pressure exchangers/separators, recycle compressor and fractionator. 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.
Licensor/kinetic basis, hydrogen balance, high-pressure design, safeguards, PFD/P&ID and performance protocol. 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.
Clean-fuels refineries requiring high middle-distillate yield and flexible conversion. Capacity, product quality, consumption and emissions commitments are confirmed only after the representative feed and project Design Basis are approved.
API 934, ASME, NACE, licensor and high-pressure hydrogen-service requirements. 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 934, ASME, NACE, licensor and high-pressure hydrogen-service requirements.