Elements of
Chemical Reaction Engineering
6th Edition



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Essentials of
Chemical Reaction Engineering
Second Edition

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Chapter 8: Multiple Reactions

Additional Homework Problems

CDP8-HB

The hydrogenation of o-cresol 2-methylphenol (MP) is carried out over a Ni-catalyst [[Ind. Eng. Chem. Res., 28, 693 (1989)] to form 2-methylcyclohexanone (ON, which then reacts to form two stereoisomers, cis- (cs-OL) and trans(tr-OL)-2-methylcyclohexanol. The equilibrium compositions (on a hydrogen-free basis) are shown in Figure CDP6-H.


Figure CDP6-H

(a) Plot (sketch) the selectivities of ON to cs-OL and of tr-OL to cs-OL as a function of temperature in the range 100 to 300.
(b) Estimate the heat of reaction for the isomerization

tr-OL cs-OL

(c) Plot (sketch) the yields of MP to tr-OL and of MP to ON as functions of temperature assuming a stoichiometric feed.