xGRIDx Reference Refinery Twin Full plant: 21 units. Detailed equipment: CDU-100 Crude Distillation Unit Full-plant unit-level register (DEXPI-aligned, not a validated DEXPI export) plus CDU-100 detailed equipment register 250000 DEXPI Specification 2.0 concepts (DEXPI P&ID Specification 1.4 plant model) Not a validated DEXPI export. See header comment. CDU-100Crude Distillation UnitCDU 2500001 Crude oil from tank farm Fuel gas LPG Naphtha Kerosene Diesel / LGO Atmospheric gas oil Atmospheric residue Normal except E-101C Fouling watch VDU-200Vacuum Distillation UnitVDU 1100002 Atmospheric residue from CDU-100 LVGO HVGO Vacuum residue Vacuum gas Normal NHT-300Naphtha HydrotreaterNHT 450003 Straight-run naphtha from CDU-100 Treated naphtha to reformer / isomerization H2S to amine Normal REF-400Catalytic ReformerREF 380004 Treated naphtha from NHT-300 High-octane reformate Hydrogen (net producer) LPG Fuel gas Normal DHT-500Diesel HydrotreaterDHT 700005 Diesel / LGO from CDU + LCO from FCC ULSD diesel H2S to amine Naphtha wild Normal FCC-600Fluid Catalytic Cracking UnitFCC 650006 HVGO / LVGO from VDU, deasphalted oil Gasoline (FCC naphtha) LCO Slurry / decant oil LPG / propylene Fuel gas Coke burned in regenerator Normal HCU-700HydrocrackerHCU 400007 HVGO from VDU, hydrogen Jet / kerosene Diesel Unconverted oil to FCC/lubes Naphtha LPG Normal ALK-800Alkylation UnitALK 180008 Isobutane + butylene/propylene from FCC Alkylate (high-octane gasoline) n-Butane Propane Normal ISO-900Isomerization UnitISO 220009 Light naphtha from NHT Isomerate (high-octane, benzene-lean) Fuel gas Normal DCU-1000Delayed CokerDCU 3500010 Vacuum residue from VDU Coker naphtha Coker diesel / gas oil Fuel gas / LPG Petroleum coke (fuel / anode grade, reference: fuel grade) Normal AMN-1100Amine TreatingAMN 45011 Sour fuel gas and LPG from process units Sweet fuel gas / LPG Acid gas to SRU Normal SRU-1200Sulfur Recovery + Tail GasSRU 25012 Acid gas from AMN + SWS Molten sulfur Tail gas to incinerator / SCOT SO2 within permit (reference) Normal SWS-1300Sour Water StripperSWS 80013 Sour water from process units Stripped water to reuse / wastewater Acid gas to SRU Normal HGN-1400Hydrogen Plant (SMR)HGN 12014 Natural gas + steam Hydrogen to hydrotreaters / hydrocracker CO2 vent / capture-ready (reference: vent, labeled) Export steam Normal UTL-1500Utilities - Boilers, Steam, Power, Cooling, Air, NitrogenUTL 60000015 Natural gas, refinery fuel gas, raw water Steam (HP/MP/LP) Electric power (co-gen + grid import reference) Cooling water Instrument air Nitrogen Boiler feed water / demin water Normal WWT-1600Wastewater TreatmentWWT 120016 Oily water, stripped water, stormwater Treated water to discharge / reuse (permit reference) Recovered oil to slop Oily sludge to disposal Normal TKF-1700Tank FarmTKF 320000017 Crude receipts, unit rundowns Crude to CDU Intermediates to units Finished products to blending/loading Normal BLD-1800Product BlendingBLD 18000018 Reformate, alkylate, isomerate, FCC naphtha, butane, ethanol (reference) F i n i s h e d g a s o l i n e g r a d e s , d i e s e l , j e t t o t a n k a g e / l o a d i n g Normal LDG-1900Loading - Truck, Rail, Pipeline (Marine optional)LDG 4500019 Finished products from tank farm Truck loading Rail loading Pipeline shipment Marine loading - OPTIONAL, not in reference plot, requires waterfront Normal FLR-2000Flare SystemFLR 120000020 Relief and purge gas from all units Combusted relief gas Pilot / purge (continuous small flow, reference) Normal, pilot lit FWS-2100Firewater SystemFWS 1200021 Raw water / firewater tank Firewater ring main Hydrants / monitors / foam systems Normal, tested weekly (reference) TK-1001 FloatingRoofTank StorageTank Crude oil storage and charge surge for CDU-100 24Outlet to charge pumps P-101A CentrifugalPump Pump Crude charge, duty pump 20Suction 16Discharge P-101B CentrifugalPump Pump Crude charge, parallel pump 20Suction 16Discharge E-101A ShellAndTubeHeatExchanger HeatExchanger Crude preheat against gas oil Normal Crude in Crude out E-101B ShellAndTubeHeatExchanger HeatExchanger Crude preheat against diesel Normal Crude in Crude out E-101C ShellAndTubeHeatExchanger HeatExchanger Crude preheat against atmospheric residue Fouling watch Crude in Crude out E-101D ShellAndTubeHeatExchanger HeatExchanger Crude preheat against kerosene pumparound Normal Crude in Crude out V-101 HorizontalVessel Vessel Desalter: wash water and electric grid remove salts and solids Crude in Desalted crude out Brine out F-101 FiredHeater Furnace Crude furnace, outlet 365 °C design Crude in Heated crude out to column T-101 FractionationColumn Column Atmospheric crude separation Feed in (flash zone) Overhead vapor out Kerosene draw Diesel draw Gas oil draw Residue bottoms out Reflux in E-102 ShellAndTubeHeatExchanger HeatExchanger Column overhead condenser, cooling water Overhead vapor in Condensate out V-102 HorizontalVessel Vessel Reflux drum: overhead gas and liquid separation Condensate in Gas out Liquid out to reflux pump P-102 CentrifugalPump Pump Reflux and naphtha product pump Suction Discharge, reflux Discharge, naphtha to stabilizer T-102 FractionationColumn Column Naphtha stabilizer: LPG overhead, stabilized naphtha bottoms Naphtha feed in LPG overhead out Stabilized naphtha out FL-1001 ElevatedFlare Flare Relief and purge gas disposal Flare header in CT-1001 CoolingTower CoolingTower Circulating cooling water Return water in Supply water out Crude charge suction Crude charge suction Crude to preheat train Crude to preheat train Preheat train Preheat train Preheat train Crude to desalter Desalted crude to furnace Heated crude to column flash zone Overhead vapor Condensate Reflux drum liquid Reflux return Naphtha to stabilizer Kerosene product draw Diesel product draw Gas oil product draw Atmospheric residue LPG product Stabilized naphtha Cooling water supply to overhead condenser FI-1001FlowIndicatorCharge line, downstream of P-101A/B PI-1002PressureIndicatorV-101 desalter TI-1003TemperatureIndicatorF-101 outlet TI-1006TemperatureIndicatorT-101 overhead PI-1004PressureIndicatorT-101 overhead LI-1005LevelIndicatorV-102 reflux drum