Can the Rachford-Rice equation be used for binary systems? If yes, use it to solve the...

Can the Rachford-Rice equation be used for binary systems? If yes, use it to solve the following:

A mixture of 50 mole % normal heptane and 50% normal octane at 30 degrees C is continuously flash distilled at 1 standard

atmosphere so that 60 mol% of the feed is vaporized. What will be the composition of the vapor and liquid products? Assume

constant relative volatility, αAB=2.0.

The composition of the vapor product is nearly_______________

Solutions

Expert Solution

Composition of n-heptane and n-octane in different streams

Component	Feed(zi)	Liquid(xi)	Vapor(yi)
n-heptane	0.5	0.3972	0.5685
n-octane	0.5	0.6028	0.4315

Amanda K answered 1 month ago

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