A gas separation process has been proposed to remove selectively two pollutants, hydrogen sulfide (H 2 S) and sulfur dioxide (SO 2 ), from an exhaust gas stream containing 3 0 mole H 2 S, 5 0 mole SO 2 , and 92 mole N 2 The temperature is 350 K, and the total system pressure is 1 0 atm, a Determine...

A H 2 S B N 2 C SO 2 y A 003 y B 092 y C 005 T 350 K P 10 a ...

A gas separation process has been proposed to remove selectively two pollutants, hydrogen sulfide (H 2 S)

Question:

A gas separation process has been proposed to remove selectively two pollutants, hydrogen sulfide (H₂S) and sulfur dioxide (SO₂), from an exhaust gas stream containing 3.0 mole% H₂S, 5.0 mole% SO₂, and 92 mole% N₂. The temperature is 350 K, and the total system pressure is 1.0 atm,

a. Determine the total molar concentration, molar concentration of H₂S, and mass concentration of H₂S of the gas mixture.

b. Estimate the binary gas-phase molecular diffusion coefficient of H₂S in N₂. The critical temperature of H₂S is 373.2 K and the critical volume is 98.5 cm³/gmole.

c. Estimate the molecular diffusion coefficient of H₂S in the gas mixture. Is this diffusion coefficient substantively different than the diffusion coefficient for the H₂S-N₂ binary pair? Why, or why not?

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