A good simulation model is the plant's engineering memory — it sizes the equipment, rates the revamp, generates the relief loads and tests the control scheme before anything is built. Cerasus builds and maintains models in Aspen HYSYS and Aspen Plus that are trusted because they are validated.
Steady-state simulation solves the heat and material balance for a defined flowsheet, using a thermodynamic package chosen for the chemistry. Dynamic simulation adds hold-ups, controllers and time, so you can test start-up, shutdown, trips, relief and control behaviour.
Cerasus models are built to a documented basis: property package selection, component slate, convergence and validation against plant data — so results can be defended in a HAZOP, a relief study or a management review.
Gas processing, refining, petrochemicals and utilities in Aspen HYSYS / Aspen Plus with documented property-package selection.
Start-up, shutdown, compressor surge, depressuring and relief transients; control-scheme testing.
Columns, exchangers (EDR), compressors and pumps rated inside the flowsheet.
Scenario-based relief loads feeding PSV validation and flare studies.
Reconciled against historian and lab data with a documented accuracy statement.
Model files, basis document and training so your engineers can keep it alive.
Component slate, property package, cases and acceptance criteria.
Flowsheet construction, convergence, equipment rating.
Compare against plant data; tune where justified and document.
Run the cases, report, and hand over the model with a basis document.
GPSA Engineering Data BookProperty and design correlationsAPI 521Dynamic depressuring and relief transientsISO 20765 / AGA 8Natural-gas thermodynamic propertiesDIPPR / NISTPure-component property dataTEMA / API 660 / 661Exchanger rating basisAPI 617 / 618Compressor performance representationAspen best-practiceProperty-package selection guidance (PR, SRK, NRTL, electrolyte)Send a short brief — plant, service of interest and what you need to achieve — and a Cerasus engineer will respond with a proposed scope and next steps.
Prefer email or phone? sales@cerasus.ai · +974 5506 2743