Page 101 - Analysis, Synthesis and Design of Chemical Processes, Third Edition

a. The single-pass conversion of benzene

b. The single-pass conversion of ethylene
7.

c. Overall conversion of benzene

d. Overall conversion of ethylene

Suggest two strategies to increase the overall conversion of ethylene and discuss their merits.

Consider the following statement: “If a reactant (G) in a process is a gas at the feed conditions,
8. subsequent separation from the reactor effluent is difficult, hence unused G cannot be recycled.” Do
you agree with this statement? Give your reasoning why you agree or disagree.

Most pharmaceutical products are manufactured using batch processes. Give at least three reasons
9.
why this is so.

The formation of styrene via the dehydrogenation of ethylbenzene is a highly endothermic reaction. In
addition, ethylbenzene may decompose to benzene and toluene and also may react with hydrogen to
form toluene and methane:

(B.2.1)

(B.2.2)

10. (B.2.3)

This process is presented in Appendix B as project B.3. From the information given in Appendix B,
determine the following:

a. the single-pass conversion of ethylbenzene.

b. the overall conversion of ethylbenzene.