PROCESS & OPERATING PHILOSOPHY
Feed preheat, precision fractionation, overhead condensation/reflux and bottoms cooling. The operating sequence, recycle paths, start-up/shutdown cases and normal/turndown behavior are defined before equipment finalization.
MAIN EQUIPMENT & PACKAGE LIMITS
Splitter column, trays/packing, reboiler, condenser, reflux drum, pumps and analyzers. Materials, design margins, maintainability, isolation, access, lifting and spare philosophy are coordinated with the approved operating cases.
CRITICAL DESIGN INPUTS
Feed assay/composition, design capacity, operating pressure and temperature, product specifications, turndown, utilities, battery limits and site ambient conditions.
ENGINEERING DELIVERABLES
Cut-point simulation, column hydraulics, heat integration, PFD/P&ID and product test basis. 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.
AUTOMATION, SAFETY & HSE
DCS regulatory control, critical interlocks, relief and depressuring, gas/fire detection, hazardous-area classification, HAZOP actions and applicable SIS/ESD functions.
APPLICATIONS & PERFORMANCE BASIS
Isomerization feed, CCR feed, gasoline blending and petrochemical naphtha preparation. Capacity, product quality, consumption and emissions commitments are confirmed only after the representative feed and project Design Basis are approved.
CODES, STANDARDS & QUALITY BASIS
ASME, TEMA, API and approved product-cut 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.