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H t — hn (0r\ = 10,230 - 4,850 V D )nxn 4,850 + 100 The above calculations assume that the minimum reflux ratio corresponded to a pinched-in condition at the feed point. A check of the other tie line above and below the feed plate indicated that this corresponded to the maximum value for Md. It is apparent from Fig. 7-21 that the operating line on the y,x diagram would have to be very curved in order to have the pinch occur at any place but the feed plate.

Fig. 7-21. Solution of Part 2

0.3 04 0.5 06 07 Mol fraction NH3 in liquid

Fig. 7-21. Solution of Part 2

0.3 04 0.5 06 07 Mol fraction NH3 in liquid y,x diagram for NHa-water example.,

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