An absorption column is to be designed to recover 99.5% of the NH3 from a feed stream, which is supplied at 72 "F and an NH3 partial pressure of 10 mm Hg. The feed stream contains 2100 lbadhr of air. The column operates at 1.0 atm, is supplied with pure water at 72 "F that flows at 1.5 times the minimum water rate. Hoy for the operation is 1.9 ft. a. Find the minimum water rate, in lb hr. b. Find the height of the packing required if 1.0.

pur-new-sol