The end temperatures corresponding to these product compositions are 344 K (159°F) and 386 K (236°F). These temperatures plus the feed bubble-point temperature of 358 K (185°F) provide a new set of as which vary only slightly from those used earlier. Consequently, the D = 48.25 value is not expected to vary greatly and will be used to estimate a new i-C5 split. The desired overhead concentration for i-C5 is 7 percent; so it will be assumed that DxD = (0.07)(48.25) = 3.4 for i-C5 and that the split on that component will be 3.4/16.6. The results obtained with the new as and the new i-C5 split are as follows:


a f.°

0.2048 a 6.°






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Making Your Own Wine

Making Your Own Wine

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