Our Publications

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    Chatter is most likely in vapor service, damage will most likely be due to large mechanical forces caused by the rapid valve closure and/or by PRV reduced flow capacity due to PRV damage.
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    Adequate Emergency Relief Systems (ERS) design can ensure the safety and integrity of the system. However, not all desired chemical reactions or unstable mixtures present the same level of risk, and accordingly, not all of them require the same level of effort and time for ERS design.
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    Qualify your design methods for high-viscosity two-phase relief systems against these simple benchmarks. High viscosity two-phase (HVTP) flow occurs in many industrial scale reactors, particularly when runaway reactions (e.g., during polymerizations) are vented through an emergency relief system.
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    It is a matter of considerable practical importance to recognize metastable, potentially hazardous chemical compositions so that suitable thermal hazard management means can be provided as a part of process safety management.
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    Exothermic reaction processing must be concerned with potential consequences when heat released by the reaction exceeds that removed by the reactor coolant system, a situation known commonly as a runaway reaction.
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    A modern perspective on the problem of vapor cloud and explosions is given. Particular emphasis is placed on the important practical problem of detonation hazards.
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    The fundamental heat transfer equation outlined in API Standard 521, Pressure-Relieving and Depressurizing Systems, is the basis for the wall dynamics approach. This presentation shows the advantages and characteristics of the wall segmentation approach implemented in Process Safety Office® SuperChems™.
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    Once you get into process safety, you realize that it is really a way of life. You also realize that you have become a disciple of the “Power of Negative Thinking” mantra. We are always trying to prevent bad things from happening and to learn from incidents. It is not always about negative thinking though; in process safety we convert failures into lessons learned and future successes. That is why AIChE through CCPS, the Safety and Health Division, and DIERS, has made and continues to make the world a better and safer place.
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