Refining / Application guide

FCC catalyst & flue gas valve applications

Catalyst circulation and hot flue-gas duties require different valve functions within the same FCC unit.

Abrasive catalyst · Hot gas

The application

Fluid catalytic cracking uses valves in catalyst circulation and withdrawal, pressure management and flue-gas systems. Hot, abrasive catalyst and demanding operating sequences make the exact valve location essential to a useful enquiry.

What makes the duty demanding

  • Erosion from entrained catalyst
  • Heat exposure and component movement
  • Actuation or positioning problems

Selection focus

Separate modulating catalyst control from shut-off duties. Review the appropriate valve architecture, erosion protection and actuation for the stated location.

Technical background

IMI Remosa — FCC and severe-service applications ↗

Process background summarised from these primary references. References do not imply affiliation or qualification of a VFLV product.

Turn the application into a specification.

Prepare your process and valve requirements before requesting a configuration review.

Tell us what the process demands.

Share the medium, operating envelope and duty cycle to start your application enquiry.

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