b) A product stream from a reactor is fed into a separator (V-1) as shown in Figure 1. The top product of V-1 is a gas (A) while the bottom product is a liquid (B). The liquid (B) is pumped to the downstream process using P-1 and also will be recycle back to V-1. Cooling water (CW) is used to exchange heat with the recycle stream of liquid (B) using heat exchanger (E-1). In order to optimize the separation process, the following parameters need to be controlled: The separator (V-1) pressure The separator (V-1) liquid temperature State the control objectives and manipulated variables for both parameters that need to be controlled. Based on the feedback control strategy, sketch the control loops according to the Process and Instrumentation Diagram (P&ID). (10 marks) A V-1 Product from reactor E-1 CW B P-1 Figure 1 Separator (V-1) with product A and B