CONVERSION UNITS

Fluid Catalytic Cracking (FCC)

Fluid catalytic cracking (FCC) converts suitable refinery feeds into lighter product streams. UNKA ENGINEERING coordinates feed preparation, reactor and regenerator interfaces, product fractionation, utilities and controls with the selected technology and refinery product requirements.

Fluid Catalytic Cracking (FCC)

PROCESS & OPERATING PHILOSOPHY

Feed injection, riser cracking, catalyst separation, regeneration, main fractionation and gas concentration. The operating sequence, recycle paths, start-up/shutdown cases and normal/turndown behavior are defined before equipment finalization.

MAIN EQUIPMENT & PACKAGE LIMITS

Riser/reactor, regenerator, cyclones, main fractionator, wet-gas compressor, absorbers and debutanizer. 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

Licensor integration, yield balance, catalyst/coke balance, equipment interfaces, PFD/P&ID and safeguards. 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

High-conversion refineries targeting gasoline, LPG/propylene and distillate blendstocks. Capacity, product quality, consumption and emissions commitments are confirmed only after the representative feed and project Design Basis are approved.

CODES, STANDARDS & QUALITY BASIS

Licensor standards, API, ASME, refractory, emissions and high-temperature design 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.

CONTRACTUAL CODE BASIS

Licensor standards, API, ASME, refractory, emissions and high-temperature design requirements.