Module 03 · Simulation Engine
Rigorous Refinery Simulation
Rigorous steady-state refinery simulator with full crude assay management, complete thermodynamics, and the entire library of refinery unit models — from CDU/VDU through FCC, hydrotreating, reforming, and all refinery-wide networks.
03.1 · Overview
Refinium Process
Refinium Process is the simulation engine that powers the entire platform. It is a full-featured, rigorous steady-state refinery simulator — competitive with Aspen HYSYS and PRO/II on every front — but with one decisive advantage: it is built into the same platform as Plan, Finance, Twin, RTO, and PC&S, sharing one model with all of them.
03.2 · Why It Matters
Key Capabilities at a Glance
01
Complete Refinery Coverage
Every major refinery unit, every key network, every common thermodynamic system — from atmospheric distillation through FCC and hydrocracking, with hydrogen, fuel gas, steam, and emissions networks.
02
Rigorous Crude Assay Management
Full TBP / D86 / D1160 import, automatic pseudo-component generation, blending engine, cut property prediction, and assay version history.
03
Validated Thermodynamics
Peng-Robinson, SRK, PRSV, Lee-Kesler, Grayson-Streed, steam tables, electrolytes for amine and sour-water systems. CAPE-OPEN compatible.
04
One Model, Everywhere
Unlike traditional simulators, the Process model is the same model used by Plan, Finance, RTO, Twin, and PC&S. Update once, propagate everywhere.
05
Refinery-Wide Networks
Hydrogen network, fuel gas network, steam & power, heat exchanger network, water & wastewater, sulfur balance, carbon intensity, and product blending — all simulated together.
06
Continuously Calibrated
Through Refinium Twin, the Process model is continuously calibrated against live plant data — so simulation results match reality, not idealized textbook behavior.
03.3 · Technical Depth
Full Capability Set
Every capability included in Refinium Process.
Crude Assay & Petroleum Characterization
TBP / D86 / D1160 importAPI gravity & densitySulfur / nitrogen / TANMetals & CCRViscosity / pour pointPseudo-component generationCrude blending engineCut property predictionAssay version historyRenewable feedsFeed compatibility analysisAsphaltene risk
Thermodynamics Package
Peng-Robinson EOSSRK / PRSVLee-KeslerGrayson-StreedSteam tablesAmine systemsSour-water systemsElectrolyte modelsAcid gas systemsCAPE-OPEN compatible
Unit Models
CDU / VDUSide strippersFCC reactor-regeneratorNaphtha hydrotreaterDiesel hydrotreaterVGO hydrotreaterHydrocrackerCatalytic reformerIsomerizationAlkylationDelayed cokerVisbreaker / SDAAmine / SRU / SWSFired heatersHeat exchangers
Refinery-Wide Networks
Hydrogen networkFuel gas networkSteam & powerHeat exchanger networkWater & wastewaterCO2 / SOx / NOxSulfur balanceCarbon intensityProduct blending
Solver & Numerics
Modular sequential solverEquation-oriented solverRecycle convergenceMulti-stream tearingNewton-Raphson with line searchTrust region methodsSparse JacobianRobust phase detectionHeuristic restartConvergence diagnostics
03.4 · Use Cases
Refinium Process in Action
Scenario
Run a complete CDU / VDU / downstream simulation
Import the crude assay, generate pseudo-components, configure the CDU and VDU, route the cuts to downstream units (hydrotreaters, FCC, reformer), and close the hydrogen, fuel gas, and sulfur networks. Get a full refinery-wide H&MB.
Scenario
Predict yields for an unfamiliar crude
Process imports the assay, validates completeness, characterizes the crude, blends it into the existing slate, and predicts CDU/VDU cut yields, downstream feed qualities, and final product yields and qualities.
Scenario
Evaluate a process change before commissioning
Modify the simulation to reflect a new column, exchanger, or unit revamp. See the propagation of effects across the entire refinery — yield shifts, hydrogen demand, sulfur balance, utility load, emissions impact.
03.5 · Integrated Platform
How Refinium Process Connects
Refinium Process is part of the integrated Refinium platform. Every module shares the same continuously calibrated refinery model.
Refinium Plan
Yield vectors and quality correlations from Process flow live into the LP.
Refinium Twin
Twin continuously calibrates the Process model against live plant data.
Refinium RTO
RTO uses the calibrated Process model as the basis for nonlinear optimization.
Refinium PC&S
PC&S extends the Process model into the pre-commissioning and startup domain.
See Refinium Process on Your Refinery
Request a personalized demo. We will walk through Refinium Process on your refinery's actual configuration.
Request Demo