BPT SimApps


High-Fidelity Modelling of Haber Bosch Reactors

Specialized Simulator Extensions for the Sustainable Energy Sector

Used by green innovators, operators, investors, EPCs, automation vendors and BPT in de-risking studies and lifecycle simulator projects

De-risk and optimize your green Ammonia projects


BPT-HB allows high-fidelity modelling of Haber Bosch reactors.
This unit operation can be used for early design, control system checkout and operator training simulators. 

What is BPT-HB?

To be able to achieve the energy transition, accurate and benchmarked simulation models need to be available and utilized. The complexity in green energy projects must be considered during design, engineering, commissioning and throughout operation. The only way to achieve this is by simulating and studying the dynamic effects.

BPT-HB is a unique unit operation for process simulators covering high-fidelity modelling of Haber Bosch reactors. This software extension seamlessly integrates with industry-leading process simulators, along with well-proven workflows, forming a superb digital solution for optimizing and de-risking process facility design at an early stage.

BPT-HB enables detailed and accurate Ammonia evaluations in a digital environment. Providing highly accurate steady state and dynamic reactor models enhancing design at an early stage as well as safeguarding return-of-investments.


The BPT-HB software comes as an extension for HYSYS, UniSim Design and Petro-SIM.

Examples of use cases

Haber Bosch processes
Ammonia plants

For various Digital Twin and Lifecycle Simulator applications

Early concept design simulations
Detailed engineering simulator
Control system check-out
Operator training simulator (OTS)
Online operational performance monitoring application

Flexible geometry

Flexible ammonia-specific geometry (fixed bed, radial, etc.)

Benefits and key findings:
  • Steady state and dynamic with full lifecycle approach
  • Easy to implement custom kinetics models
  • Allows for varying and tunable heat transfer throughout the reactor
  • Supporting different heating / cooling medium types in both steady and dynamics
  • Fitted for standalone models of the HB-reactor or in simulation models of a larger plant
  • Catalyst degradation
  • Model thermal lag
  • Flexible ammonia-specific geometry (fixed bed, radial, etc.)
  • Tailor-made thermodynamic property package (on demand)

Back to BPT SimApps