Blower Capacity enhancements

If it turns out that in any Fluid Catalytic Cracking (FCC) if the air blower is the constraint, then the low cost improvements could be:

• Check whether inlet air dampers, if present, are fully open when the controller output is 100 %; unbolting the actuator could buy a little more damper opening.
• Check inlet filter for clean condition.
• Check whether filter and damper could be changed out for lower DP.
• Check outlet line, check valves for excessive DP.
• Check whether re-generator pressure can be lowered
• Check whether lower DP slide valve is available
• Some have done oxygen enrichment

Then check whether blower rotating assembly can be changed or speed can be changed; before changing the blower itself.

There is one more possibility! Can you guess?