a monochlorobenzene separation process. The process

involves a flash vessel, V$-100$; an absorption column, T$-100$; a distillation column, T$-101$; a reflux

drum, V$-101$; and three utility heat exchangers. As shown, most of the HCl is removed at high

purity in the vapor effluent of T$-100.$ Residual HCl is purged in a small vapor overhead product

stream in T$-101.$ The benzene and monochlorobenzene are obtained at high purity as distillate and

bottoms liquid products in T$-101.$ Note that the $12$ available control valves are identified. Your

task is to design a conceptual control system to ensure that the process provides stable production

at a desired level while meeting quality specifications.Figure $2$: Process flowsheet of monochlorobenzene separation for Problem $2.$