Size Pressure-Relief Devices for Multiple Chemicals | AIChE

You are here

Size Pressure-Relief Devices for Multiple Chemicals

Computational Methods

Equipment in a toll manufacturing facility must be designed to handle many different chemicals and processes. This article offers advice for sizing pressure-relief devices for such applications.

Toll manufacturers often use a single piece of equipment for multiple processes. Over its lifetime, the same piece of equipment may contain a dozen different chemicals. Therefore, the pressure-relief device (PRD) on that equipment must be sized to handle the absolute worst-case relief scenario for all chemicals it could contain.

When sizing PRDs, the design engineer must consider all relief scenarios and choose a PRD that has a rated (i.e., installed) area or flow capacity larger than the greatest required area or flow capacity calculated for each application. This process can be very time consuming if numerous chemicals must be considered. This article describes how to quickly determine the worst-case relief scenario, so the design engineer can evaluate which chemicals will require more-detailed orifice area calculations.

Would you like to access the complete CEP Article?

No problem. You just have to complete the following steps.

You have completed 0 of 2 steps.

  1. Log in

    You must be logged in to view this content. Log in now.

  2. AIChE Membership

    You must be an AIChE member to view this article. Join now.

Copyright Permissions 

Would you like to reuse content from CEP Magazine? It’s easy to request permission to reuse content. Simply click here to connect instantly to licensing services, where you can choose from a list of options regarding how you would like to reuse the desired content and complete the transaction.