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The vapour phase alkylation of phenol is carried out by a selective zeolite catalyst to yield a mixture of 35 mole% p-cresol and the rest phenol. The mixture which is at its bubble point is to be separated at 1 atm pressure in a stripping column having nine ideal trays and a partial reboiler at a rate of 50 kmol/h to yield 95% p-cresol as the bottom product. The relative volatility of phenol in the mixture is 1.76. Calculate (a) the composition of the top product and (b) the boil-up rate, Vm /W.

The vapour phase alkylation of phenol is carried out by a selective zeolite catalyst to yield a mixture of 35 mole% p-cresol and the rest phenol. The mixture which is at its bubble point is to be separated at 1 atm pressure in a stripping column having nine ideal trays and a partial reboiler at a rate of 50 kmol/h to yield 95% p-cresol as the bottom product. The relative volatility of phenol in the mixture is 1.76. Calculate (a) the composition of the top product and (b) the boil-up rate, Vm /W.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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*He vapour phase alkylation of phenol is carried out by a selective zeolite catalyst to yield a mixture of 35 mole% p-cresol and the rest phenol. The mixture which is at its bubble point is to be separated at 1 atm pressure in a stripping column having nine ideal trays and a partial reboiler at a rate of 50 kmol/h to yield 95% p-cresol as the bottom product. The relative volatility of phenol in the mixture is 1.76. Calculate (a) the composition of the top product and (b) the boil-up rate, Vm /W.
Transcribed Image Text:*He vapour phase alkylation of phenol is carried out by a selective zeolite catalyst to yield a mixture of 35 mole% p-cresol and the rest phenol. The mixture which is at its bubble point is to be separated at 1 atm pressure in a stripping column having nine ideal trays and a partial reboiler at a rate of 50 kmol/h to yield 95% p-cresol as the bottom product. The relative volatility of phenol in the mixture is 1.76. Calculate (a) the composition of the top product and (b) the boil-up rate, Vm /W.
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