Simulation and optimization of nitric acid plants and nitrous vapors absorption

On-demand training



Level 1


French - English


Two days


Request a proposal for the dates and location of your choice.


This level 1 training will enable participants to master the fundamental principles of simulation and optimization of nitric acid plants and nitrous vapors absorption. Trainees will study issues related to physico-chemical properties, unit operation modeling, mass-energy balances and numerical aspects.

At the end of the training, participants will have the required elements to assess the benefits of simulation and to analyse rigorously a process with a flowsheeting software. Additionally they will have a practical experience of the ProSimPlus HNO3 simulator.

These objectives are evaluated at the end of the training.

Who should attend?

This training session is designed for engineers involved in design, optimization and analysis of processes and for those in charge of the efficiency of an installation running under different operating conditions.


  1. Getting started with ProSimPlus HNO3
    1. General description
    2. Description of the graphical interface
    3. Application example
  2. Thermodynamics
    1. Introduction
    2. Physical properties (general database and database dedicated to nitric acid production and nitrous vapors absorption)
    3. Calculation models of phase equilibrium, enthalpies and transport properties dedicated to nitric acid production and nitrous vapors absorption
    4. Other models of phase equilibrium calculation, enthalpy and transport properties
    5. Simulis Thermodynamics: management of thermodynamics within ProSimPlus HNO3
    6. Application examples
  3. Chemical reactions
    1. Chemical reaction in nitric acid production units and nitrous vapors absorption units
    2. Representation of other reactions
  4. Unit operations modeling
    1. General presentation of the graphical interface of the modules
    2. Unit operations dedicated to nitric acid production and nitrous vapors absorption (nitrous vapor condensers, oxido-absorption columns, heat exchangers with oxidation reaction...)
    3. General unit operations (mixers & separators, heat exchangers, vapor-liquid flash , fluid transport, chemical reactors, vapor-liquid distillation)
  5. Controls, specifications, constraints and recycles
    1. Management of constraints and recycles
    2. Specifications
    3. Information transfer
    4. Resolution tools
    5. Application examples
  6. Advanced use: scripting in ProSimPlus HNO3
    1. Presentation
    2. Application examples
  7. Case studies and exercises
    1. Mono-pressure process
    2. NOx absorption packing column
    3. Dual-pressure process

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Cost and Conditions

  • ProSim is a certified training center.

Training organization

  • Duration: two days on site or several half-days online
  • Location: on customer site, at ProSim, virtually ...
  • Accessibility: contact us if you have a disability.
  • Language: training can take place in French or English.
  • Equipment: one computer per person is recommended. A software license will be provided by ProSim for the duration of the training if necessary.
  • Teaching method: the training course consists in theoretical lectures and applications exercises. A number of concrete case studies are discussed.
  • Materials used: educational booklet, Powerpoint presentation, computer with software installed.
  • Methods used and assessment methods: the assessment of prior learning is carried out during training by carrying out several practical exercises.
  • Trainers: all our training courses are led by experienced trainers recognized by their peers. Our trainers are the same persons who develop the software and take care of Support.
  • Training follow-up: the follow-up of the execution of the action is done with the signature of attendance sheets by each trainee and by the evaluation sheet of the training session.
  • Software: ProSimPlus HNO3
  • At the end of the training, a certificate will be issued.


  • Background in chemical engineering / process engineering
  • Knowledge in thermodynamics
  • Basic knowledge in software utilization in windows environment

Information is collected before the training in order to identify the knowledge of each future participant.



Additional relevant training

  • Thermodynamic approach in chemical process simulation (suggested prerequisite)


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