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1. The equilibrium data for a certain absorption may be represented by the equation Y = 5.2X^2, where X = kmol of dissolved absorbable material per kmol of pure absorbing liquid and = kmol of gase... ous absorbable material per kmol of inert gas. The unit is operated as continuous counter-current absorption. The entering gas contains 5 moles of absorbable material per 20 mols of inert gas. The absorbing liquid enters the column as a pure material. Determine the minimum ratio of liquid to gas if the gases leaving the tower contain 1 mol absorbable material per 50 mols of inert gas. a. 1.87 c. 1.94 b. 1.78 d. 1.09 For numbers 2 and 3… In a CO2 absorber using a carbonate solution as absorbent, 1,000 kmols/h of flue gases containing 50% by volume CO2 and the balance being inert gases, is fed into the column. The lean gas leaves the absorber with a 2% by volume CO2. Determine the following: 2. Flowrate of the lean gas a. 480 kmol/h c. 374 kmol/h b. 510 kmol/h d. 266 kmol/h 3. Quantity of CO2, in kg/h, that is recovered from the regeneration of the fat liquor a. 14 000 c. 32 000 b. 22 000 d. 18 000 For numbers 4 to 6… [Show More]

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