I am designing a water injection quill to pull the aqueous dew point upstream of a set of fin-fans. Currently it is believed that trace NH4Cl salts are dropping out upstream of the water dew point onto dry tubes.
I believe that Norco, in May of 1988, had some fatalities at their cat cracker that was associated around a bad injection quill. I am uncertain what happened and want to learn from the event.
Could anyone please help me understand that failure, please and most respectfully?
You should design the quill in such a way that it should be make 45deg angle with the pipe and injection direction of the water should be same as that of main flow in the pipe.
Minimum rate of injection water should be such that after mixing with process stream the 25% water should be remained unvaporized.