Before anybody could make any sort of judgement you will need to provide some details on the ash.
For example
Size of the ash particles.Is there a wide range of sizes or are the particles fairly consistent.
Specific gravity
Volume to be treated
Is it dry or in a slurry
Regards
Ashtree
"Any water can be made potable if you filter it through enough money"
Dear Pro
Cyclones have been used successfully to separate dusts and liquid in different kinds of plants It is generally used in a narrowly bounded operating range with very high degree of separation.
I guess it could be better to be chosen the Cyclone and we scrubbing, but
It is required to measure the loading capacity of ash, gas, and liquid first.