吸收概念题（Absorption concept）.doc

吸收概念题（Absorption concept） The first part of the concept and analysis 1. Fill in the blanks In the liquid phase, if the temperature is doubled, the viscosity is constant, the diffusion coefficient is... Answer: double Analysis: it is known that. The absorption tower in the 5-2 operation, when the production task must be less than the minimum dosage, the absorption effect will be absorbed; ______. Answer: no Analysis: the so-called minimum liquid gas ratio and minimum absorbent dosage is separation for certain tasks, when actual or liquid absorbent dosage is less than the minimum, the absorption effect of less than a given separation requirements. The expression of 5-3 deacon factor s is ______, and the geometrical meaning in the y-x coordinate system is _____. Answer:; The ratio of the slope of the equilibrium line to the operating line ratio 5-4 when the composition of gas flow, gas phase import and export composition and liquid phase is constant, if the dosage of absorbent is reduced, the operation Make line will... line of balance, mass transfer driving force will _____, if absorbent dosage to minimize absorption agent, equipment cost will be ____. Answer: proximity; Decreased; infinity 5-5 packing absorption tower for countercurrent operation, when the desorption factor s 1, if the tower height is infinite, the gas-liquid two phase will reach the equilibrium in the tower. Answer: at the end of Analysis: because the slope of the line of equilibrium is greater than the slope of the operating line, the operation line is infinitely prolonged (the height of the tower is infinitely high), and the line will meet at the high concentration end and the equilibrium line, which is the equilibrium between the two phases at the bottom of the tower. 5-6 according to the double membrane theory, the two phases of mass transfer resistance mainly focus on ______, increasing the turbulent degree of the two phases of the gas-liquid phase, and the mass transfer rate will be _____. An