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(c) A gas containing 15% SO2 and 85% air at 1 atm and 30 C is to be absorbed in water to remove 95% of SO2. The feed gas rate is 1700 kh/h and the water rate is 40,000 kg/h at the tower bottom. Calculate the diameter of the column for 2 mm ceramic rasching ring as well as check either 2 mm rasching ring is suitable to use or not. Calculate the pressure drop across the tower and blower horsepower required if the packed height is 6 m. assume that liquid has the properties of water. Assume pressure drop of 0.3 inch water per ft of packing (within the standard), 10 % losses for additional pressure drop, 65 % motor-blower efficiency and G' = 0.8*(G')