A metallurgy question
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Desorb a propylene carbonate absorption solution containing carbon dioxide using a packed tower. The liquid phase compositions entering and leaving the desorption tower are known to be 0, 0.015, and 0.002 respectively (all on a molar basis). The carrier gas used for desorption is air containing 0.0005 (mole fraction) of carbon dioxide; the equilibrium relationship under operating conditions is Y=106.03X. When the gas-liquid ratio is 1.85 times the minimum value, the mole fraction of the product gas leaving the column is ( ). (A) 0.463 (B) 0.861 (C) 0.550 (D) 0.625 Why do I think the answer is B?
Note that the question asks for the molar fraction; what you calculated is the molar ratio. With one more calculation, you will obtain answer A
Yes, you’re right; I really didn’t notice it. Thank you