A packed column is used to absorb a toxic pollutant from a gas stream. From the data given below, calculate the height of packing and column diameter. The unit operates at 50% of the flooding gas mass velocity, the actual liquid flow rate is 40% more than the minimum, and 95% of the pollutant is to be collected. Employ the generalized correlation provided in Figure 10.11 to estimate the hight of packing and column diameter.

Gas mass flow rate 14 3500 lb/h

Pollutant concentration in inlet gas stream 14 1.1 mol% Scrubbing liquid 14 pure water

Packing type 14 1-inch Raschig rings; packing factor F 14 160 HOG of the column 14 2.5 ft

Henrys law constant m 14 0.98

Density of gas (air) 14 0.075 lb/ft3

Density of water 14 62.4 lb/ft3

Viscosity of water 14 1.8 cP

Figure 10.11 Generalized pressure drop correlation to estimate column diameter. Nucstant No 2. (30 poinfs) A packed column is used to absorb a toxic pollutant from a gas stream. The unit operates at 50% of flooding gas mass velocity, the actual flow rate is 40% more than the minimum and 95% of the pollutant is to be collected. From the data given below and the genctalized correlation figure attached calculate the height of packing and the column diameter in ft