Question

Absorption A combustion gas (22 kmol) from a large coal-fired power plants contains carbon dioxide 11.5 + a+f-d = _CO₂ (mol %) the rest is air. We want to remove a+f-d

CO₂ (mol %). 80 50 " the CO₂ so that the cleaned gas contains 1.1+ This is done by contacting the combustion gas with a water-amine solution in a plate absorption column at about 60°C and 1.2 bar. The water-amine feed solution contains 1.0% CO₂ and the enriched solution leaving the bottom contain 5.32+3= % CO₂ The vapor liquid equilibrium relation is given by, y = 0.84x. Assume constant molar flows calculate the liquid flow rate and required number of plates. 103 = =

Fig: 1