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BATCH DISTILLATION

A liquid mixture containing 35% mole heptane and 65% mole octane (α=2.16) is

su!ected to di"erential method at atmospheric condition #ith 65% o$ the liquid

distilled. etermine the composition o$ the distillate and ottoms.

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FLASH DISTILLATION

1. &$ a 2'% enene in toluene mixture is the $eed to an equilirium still and i$ the

apor and liquid streams are #ithdra#n in a ratio o$ 2 mole apor to 1 mole liquid*

#hat is the composition o$ the apor and liquid. At #hat temperature is the still+

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2. &$ a mixture o$ #ater and '.3' mole $raction o$ ethanol is the $eed to an equilirium

still* and i$ the apor stream contains '.,2 mole $raction ethanol* #hat is the

composition o$ the liquid and #hat is the ratio o$ the apor to the liquid+ 

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3. A $eed 6'% mol hexane and ,'% mol octane is $ed to a pipe still through a -ash

disengaging chamer. he apor and liquid leaing the chamer are assumed to e

in equilirium. &$ the $raction o$ the $eed conerted to apor is '.5* /nd the

composition o$ the top and ottom products. 0quilirium data $or this sstem is

gien elo#

ol $raction o$ hexane in the

liquid1.' '.64 '.,' '.142 '.',5 '

ol $raction o$ hexane in the

apor1.' '.432 '. '.53

'.1

5'

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,. A mixture o$ 1'' mol containing 6' mol %