Question

Hello, I am having trouble solving this air pollution problem. Please give me a help. Thank you

An industrial plant emits process gas with a flow rate of 300 m3 min1 at 82 C and 1 atm (760 mmHg 1.01325x105 Pa) containing 500 ppm (v/v) SO2. If the gas is to be cleaned by a packed bed scrubber using sodium hydroxide (NaOH) solution containing 20% NaOH by mass, determine the NaOH flow rate if we need a 60% S02 removal? Assume specific gravity of the solution is 1. Atomic masses: Na (23), O (16), H (1), S (32) Chemical reaction: 2NaOHSO2H20 Na2SO3

Answer 1

Soliton Rea dion rMun feed aa» wins ideal ga equatien rm In R T u n run y; 10218.5 L) in ru n

Solution We wonSt 60 % emoval mul S. l y g x 0.60 remove」 2 in 2 mols ρ の Mol0γ mass b Moss Jlow rate mu n Tu 80ludion contain 20% NaOH 6 run m3/ ai tooo