Problem 1. (10 points) The figure below shows a semi-batch polymerization reactor process. The major steps in this process are highlighted below. 1. Pumping 100 pounds of initiator into reactor R-1. 2. Heating the reactor to a temperature of 240 °F. 3. Adding monomer for a period of 3 hours. Because the reaction of the monomer is exothermic, the reactor internal coils remove the reaction energy by cooling water. The rate of heat release from the reaction is controlled by the monomer feed rate. 4. Stripping the residual monomer by means of a vacuum valve V-15. Identify the equipment that must be protected by relief. Identify the relief scenarios. Determine the type of relief required for each location. Monomer In <5 gpm> Steam <125 psig> Cooling Water Out Cooling Water In <200 gpm> Steam Trap V-2 V-4 V-5 V-6 V-7 Base P-1 W R-1 XV-8 V-9 Cooling Water Out (10 gpm) 8V-11 E-1 V-10 V-12 Cooling Water In V-3 Product (PC) V-15 D-1 (LC) V-13 Vacuum P-2 Nitrogen (100 psig) V-14

Fig: 1