1. A temperature control system for distillation column of propylene glycol is considered. The control objective of the temperature, T (C) of a plate near the top of the column is to keep at the desired value by manipulating the reflux flow rate, R (kg/hr). Thus, the product quality of propylene glycol not achieved at its amounts at the feed flow rate, FF (kg/hr) in an error reading. a. Sketch the piping and instrumentation diagram (P&ID) for a temperature control system for distillation column in Figure 1. The standard ISA instrumentation symbols must be implemented. Coolant R, TA Distillate T FATE Figure 1: Distillation Column