2 replies to this topic

[chayan.bhalla]

Our Deep Catalytic Cracking unit Wet Gas Compressor (WGC) seems to be an over-designed one as its operating at the minimum governing speed(MGS) with the anti-surge valves around 35% open even at 90% plant capacity. Due to this the speed/performance controller is operated in manual mode making it difficult to control the reactor pressure. 

Is it possible to change/lower the MGS of turbine so as to bring the speed control in the unit's operating range and thus keeping the reactor pressure control in AUTO. If not, is it advisable to tune the ASVs so that they close at a lower load?

[breizh]

Hi ,

Why don't you ring the manufacturer ? He should give you recommendations .

Good luck.

Breizh

[manojkaila]

Dear 

 

I think your WGC not over design but when you get more lighters you need it. For tuning if I am not wrong you can contact to CCC. MGS only vendor can decide because it is linked with critical speed also.

 

I advice do not play much with WGC normally you must have only one. Once it trip every one will jump on you by looking the flare...

 

Good luck 

 

Manoj