Who can use this product?

XPSIM is a generalized steady state and dynamic process simulator.

XPSIM is a powerful and modular process simulator for the design of process plants and network systems in the Energy and Chemical industries, Oil and Gas transportation.
XPSIM can be used both in process design and flow-assurance analysis: it can answer calculation needs presently covered by multiple software products.

XPSIM results in the field of process chemical engineering can be compared to those of HYSYS and UNISIM. For flow-assurance calculations, results can be compared to those of PIPENET, OLGA and LedaFlow.

Version 3.01 - mod.01 released - April, 2023

This new version includes updates and improvements on the windows user interface and of simulation engine.
The Dynamic Simulation Option is now one fully available feature of the product.

  Browse What is new page for a full description.

A trial version is available, at no cost, to engineering companies and professional engineers interested in testing all available simulation features.
Inquiries can be sent to: info@xpsimworld.com

Lease prices are lower than those of other simulation products.

Process Engineering Simulation and Flow-Assurance Services

Xpsim is the basis of many researches on process and flow-assurance topics followed by published articles.
Browse Articles&Papers for a complete list.
All features developed for advanced analysis or researches are included in the Xpsim product.
Special features can be developed upon customer request.

Dynamic Multiphase Flow Simulation

The dynamic compositional simulation of Gas-Liquid 2-phase flows in pipelines, initially available for release 2.03, is now extended and complete .
Browse the article "Full Compositional Simulation of Two-Phase Flows"available in the "General Info - Articles and Papers" page.

A short video of a dynamic 2-phase flow slug simulation can be viewed in this dynamic example.


XPSIM provides in a single product functions that can be found in multi-products applications.

  • Vapor-Liquid equilibrium with hydrate formation
  • Vapor-liquid equilibrium data regression
  • PVT experiments for reservoir fluids characterization
  • Hypothetical components and Crude properties generation
  • Mixers, Splitters, Flash, Valves, Component Separators, etc.
  • Compressors, Expanders, Pumps
  • Simple and multi-stream heat-exchangers
  • Distillation Columns with side strippers
  • Complex pipelines, simple pipes and nodes
  • Pressure safety devices sizing (API RP520)
  • Vessel depressurization and blow-down (API RP521)
  • Reactors (CSTR, Plug Flow, Conversion, min Gibbs energy)
  • Special Functions

    XPSIM include a complete pipeline unit operation.
    Coupled with the gathering and network solution algorithms, solves all flow-assurance problems faced by the Oil and Gas industry for upstream, midstream and downstream operations

    Simple and Efficient

    XPSIM provides in a single product
    Process and Flow-Assurance simulation capabilities
    not available in other commercial tools

    Additional Infos

    Process Simulation Services

    see details

    For the design of furnaces use WinHeat© (Thermal Rating And Analysis) and WinProp© (Properties Grid Generation, Pressure Loss & Flow Regime)

    See Winheat web site