Fractionation that removes C₄ and lighter components from stabilized naphtha or conversion-unit liquid.
Feed preheat, fractionation, overhead LPG condensation/reflux and stabilized naphtha bottoms. The operating sequence, recycle paths, start-up/shutdown cases and normal/turndown behavior are defined before equipment finalization.
Butane-removal stabilizer column, reboiler, condenser, reflux drum, pumps and LPG handling interface. 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.
VLE model, tray/packing hydraulics, relief cases, PFD/P&ID, datasheets and control philosophy. 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.
Naphtha stabilization, reforming, FCC gas concentration and condensate processing. Capacity, product quality, consumption and emissions commitments are confirmed only after the representative feed and project Design Basis are approved.
ASME, TEMA, API, LPG handling and project specifications. 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.
ASME, TEMA, API, LPG handling and project specifications.