有一填料吸收塔,填料高 10m ,用清水逆流洗去混合气中有害组分 A ,在一定的操作条件下,测得进、出塔气体中含 A 分别为 Y A,1 = 0.02 , Y A,2 = 0.004 ,出塔液相中含 A 0.008 (均为比摩尔分数)。相平衡常数 m = 1.5 ,问: ( 1 )该操作条件下的气相总传质单元高度为多少 m ( 2 )因要求塔顶出塔气体中含 A 为 0.003 (比摩尔分数),如液气比不变,填料层应加高多少 m
A.
3.61 , 12.73
B.
5.61 , 2.73
C.
3.61 , 7.27
D.
3.61 , 2.73
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