b. Dimethyl ether (DME) production process flow diagram without safety reliefs is shown in APPENDIX. The process is intended to produce 50,000 metric tons DME annually with 99.5 wt% purity. An audit outcome indicates that there are potential of fire and explosion in the process. As a process designer, you have been asked to design relief system to prevent overpressure situations. Propose and sketch ALL the suitable relief locations on the process flow diagram. Describe the suitable type of relief devices that should be used at each location and provide recommendations for total containment systems of suggested relief system. Furthermore, you are required to design suitable safeguarding systems for the storage tank of one selected chemical from the process. State all assumptions and list all relevant standards used in the design. Note: The APPENDIX sheet is to be detached and attached together with the answer booklet. [35 marks] V-201 E-201 E-203 T-201 Feed Methanol DME DME Vessel Preheater Cooler Tower P-201A/B E-202 R-201 Feed Pump Reactor Reactor Cooler E-204 E-205 V-202 DME DME DME Reboiler Condenser Reflux Drum P-202A/B E-206 T-202 E-207 V-203 P-203A/B DME Reflux Methanol Methanol Methanol Methanol Methanol Pumps Reboiler Tower Condenser Reflux Pumps Drum E-208 Wastewater Cooler DME Methanol 46 10.3 E-205 R-201 V-201 T-201 CW V-202 121 21 E-207 P-202A/B P-201A/B T-202 CW mps mps E-201 139 7.4 (V-203 E-202 E-204 P-203A/B 26 E-203 mps CW Wastewater Temperature, C Pressure, bar APPENDIX E-206 E-208