Question $3$

$30$ marks

$($a$)$ In reference to the fourteen elements of the Process Safety Management $($PSM$),$ outline the technical and safety requirement for the following two elements:

$($i$)$ Process Safety Information $($PSI$).$

$($ii$)$ Management of Change $($MOC$).$

$[5$ marks$]$

$[5$ marks$]$

$($b$)$ The distillation column T$-201$ and its accessory equipment $($condenser$,$ E$-205,$ reboiler, E$-204,$ the pump, P$-202$A$/$B and the reflux drum, V$-202)$ is shown in Figure Q$3.$

Figure Q$3$: Distillation Column T$-201$

$($i$)$ Examine the control loops on the PDF and specify for each loop the control objective, the controlled and manipulated variables.

$[5$ marks$]$

$($ii$)$ Recommend additional control schemes needed to maintain a safe and proper operation of the distillation column T$-201$

$[5$ marks$]$

$($iii$)$ Develop and draw the Piping and Instrumentation Diagram $($P&ID$)$ of the distillation column.

$[5$ marks$]$

$($c$)$ Develop a HAZOP study to improve the safety of the process for the study node, the distillate line $($Stream $10).$ Use the guide$-$words high and low to the process parameters: flow, temperature and pressure.

$[5$ marks$]$

Pagel$4$