Reactive Pressure Relief System Design

Safe design of reaction containment and venting systems depends on a thorough understanding of chemical reactivity hazards and thermokinetics. ioKinetic offers a 3 step approach, applicable for relief system design, process optimization, and chemical reactivity hazard evaluation.


Watch the video to see the ioKinetic 3 step systematic approach to sizing relief systems for reactive systems.


Our 3-Step Approach

Step 1: Chemical reactivity evaluation
  • Conduct a closed small-scale adiabatic test (e.g. ARC®, APTACTM)
Step 2: Develop a kinetic model that simulates the adiabatic test
  • Define reaction stoichiometry using measured vapor-liquid equilibrium
  • Define a reaction model
Step 3: Predict behavior in the full-scale vessel
  • Use the developed stoichiometry and reaction model
  • Simulate the actual full-scale vessel
  • Complete process optimization, pressure relief system design (including inlet and outlet piping)


We have carried out large-scale hazard tests to benchmark our approach and verify the magnitude of the hazard in commercial scale systems. For such tests, we develop a test plan, oversee the field testing, interpret the test results, and prepare a summary report.

We use software tools that are the industry standard for performing reactive system pressure relief design. The AIChE Design Institute for Emergency Relief Systems (DIERS) Users Group selected ioMosaic Corporation’s Process Safety Office® SuperChems™ component as their replacement for the SAFIRE computer code. SuperChems™ has been the subject of many publications and is used successfully worldwide by major chemical companies.

We Can Help

ioKinetic can help you comply with regulatory standards, both in the U.S. and internationally. Call us at 1-844-ioKinetic to speak to an expert regarding your reactive PRS design needs.