Hello everyone,
I have to design a wet scrubber for gas flow rate of 16 cubic meter per hour. Gas stream is having 5 % NOx.
Normally, we used to design wet scrubber for above 500 CFM. In these, we will keep superficial velocity in the absorption column as constant ( i.e. 200 to 400 fpm). Anyway, I have to check Flooding percent for this.
So, for this much low flow rate ( 16 cmh), if i keep 200 fpm of velocity, I am getting absorption column dia of 0.3 ft. It is 75 mm only.
I feel that column dia is very very less.
Is it correct by keeping 75 mm of dia.?
Is there any rule to keep minimum dia of absorption column?
Please discuss about this.