Question

How can we minimize the formation of polyalkylbenzene in the manufacture of cumene?

(a) Using low benzene and propylene feed

(b) Using high benzene and propylene feed

(c) Using a high-end catalyst

(d) Using a low-end catalyst

This question was posed to me during an internship interview.

The above asked question is from C3 Compounds in division Synthetic Organic Chemical Industries of Chemical Technology

Answer 1

Right choice is (b) Using high benzene and propylene feed

The explanation is: Minimization of polyalkylbenzene is possible by using high benzene and propylene feed around 5:1 ratio or even higher and the propane dilution method.