METHOD & PROCESS PRINCIPLE
Hydrotreated light naphtha is catalytically isomerized; product stabilization and optional recycle improve octane.
CRUDE OIL REFINERY SYSTEMS
Light Naphtha Isomerization
Raises octane of C₅/C₆ light naphtha with minimal aromatic formation.
MAIN EQUIPMENT & PACKAGE LIMITS
Feed dryers/guard beds, reactor, heater, exchangers, separator, stabilizer, recycle and hydrogen interface.
CRITICAL DESIGN INPUTS
Representative crude assay including API gravity/density, TBP or SimDist, sulfur, TAN, CCR/MCR, metals, salt, water/sediment, light ends and product targets; site ambient data, utilities and battery limits. Light-naphtha composition, sulfur/water limits, octane target and catalyst/licensor basis.
ENGINEERING DELIVERABLES
Design Basis, heat and material balance where applicable, PFD, P&ID, datasheets, line/equipment lists, layout and 3D interfaces, control and safeguarding documents, inspection plan, operating and commissioning procedures.
AUTOMATION, SAFETY & HSE
Hazard review, alarms and interlocks, relief/vent/drain philosophy, hazardous-area classification, maintainable isolation, fire protection, emergency shutdown interfaces and environmental controls.
APPLICATIONS & PERFORMANCE BASIS
Gasoline pool octane upgrading and benzene-management strategies.
CODES, STANDARDS & QUALITY BASIS
Licensor requirements, ASME, API, IEC and hydrogen-service practices.
CONTRACTUAL CODE BASIS
Licensor requirements, ASME, API, IEC and hydrogen-service practices.