Ethane $(C_2{H}_6)$ is chlorinated in a continuous reactor: $C_2{H}_6+C{l}_2{C}_2{H}_{5}Cl+HCl$

Some of ethane is converted in an undesired side reaction: $C_2{H}_6+2C{l}_2{C}_2{H}_{4}C{l}_2+2HCl$

Flow rate of the feed to the reactor $($not the fresh feed to process$)$ is $150mo\frac{l}{h},$ containing $4$

moles of ethane $(C_2{H}_6)$ per mole of chlorine $(C{l}_2).$ The conversion of $C_2{H}_6$ in the reactor is $15\%$

and for every $100$ moles of ethane consumed in the reactor, $80$ moles of monochloroethane

$(C_2{H}_{5}Cl)$ exit in reactor products.

A separation process is used to separate the products: ethane and chlorine are recycled to the

reactor and monochloroethane $(C_2{H}_{5}Cl)$ leaves the system to be sold as a product, and $HCl$ and

$C_2{H}_{4}C{l}_2$ are discarded.

Compulsory questions $($a$-$d$))$

a$)$ Draw and label the flow chart of the process

b$)$ Calculate the molar flow rate $(mo\frac{l}{h})$ of $C_2{H}_6$ leaving the reactor

c$)$ Calculate the molar flow rate $(mo\frac{l}{h}$ of $C_2{H}_{5}Cl$ leaving the reactor

d$)$ Calculate the molar flow rate $(mo\frac{l}{h})$ of $C_2{H}_6$ and $C{l}_2$ in the fresh feed

Optional questions $($e$-$h$)$

e$)$ What is the OVERALL conversion of $C_2{H}_6?$ Explain why the overall conversion is higher than

the single pass conversion.

f$)$ Calculate the molar flow rate $(mo\frac{l}{h})$ of the stream containing $HCl$ and $C_2{H}_{4}C{l}_2$

g$)$ Calculate the overall yield of the desired product $C_2{H}_{5}Cl$

h$)$ Calculate the overall selectivity of the desired product $C_2{H}_{5}Cl$ with respect to the undesired

product $C_2{H}_{4}C{l}_2$