1800 m3/hr of gas mixture containing 14% NH3, 86% Air by mole shall be treated with water in a packed absorber at 1 atm and 15oC using #2 metal Rachig super ring packings. The gas leaving should contain only 3 mole% of ammonia. Assume that equilibrium for the system is given by y = 8.1 x, where x and y are mole fractions of NH3 in the liquid and gas, respectively. For water: density = 995 kg/m3 and vis= 0.8 cP | For the gas: density = 1.16 kg/m3. Answer the following questions: -Determine the HOG if the tower is 0.75 m in diameter and the mean over-all mass transfer coefficient, Ky is 2.15 kmoles/hr-m2-y. Use a = 98/m. -If HOG is 1.2 m and the concentration of the liquid leaving the column is 1.4 mol% NH3, what is the height of the packing (m) using log mean driving force? -The entering molar flow rate of pure water is 1400 kmole/hr and HOG is 1.2 m, what is the height of the packing (m) Colburn Equation
1800 m3/hr of gas mixture containing 14% NH3, 86% Air by mole shall be treated with water in a packed absorber at 1 atm and 15oC using #2 metal Rachig super ring packings. The gas leaving should contain only 3 mole% of ammonia. Assume that equilibrium for the system is given by y = 8.1 x, where x and y are mole fractions of NH3 in the liquid and gas, respectively. For water: density = 995 kg/m3 and vis= 0.8 cP | For the gas: density = 1.16 kg/m3. Answer the following questions:
-Determine the HOG if the tower is 0.75 m in diameter and the mean over-all
-If HOG is 1.2 m and the concentration of the liquid leaving the column is 1.4 mol% NH3, what is the height of the packing (m) using log mean driving force?
-The entering molar flow rate of pure water is 1400 kmole/hr and HOG is 1.2 m, what is the height of the packing (m) Colburn Equation?
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