การออกแบบข่ายงานแลกเปลี่ยนความร้อนในกระบวนการผลิตคิวมีน / ภัทรา จารุเกษม = Design of heat exchanger network in Cumene production process / Patthra Jarukasem
Cumene is an intermediate using in Phenol production process. It is produced from alkylation reaction between Benzene and Propylene, and then purified by using high pressure steam, 40 kg/cm2, in the fractionation unit to achieve 99.92% wt Cumene purity. As this process consumes large amount of high pressure steam, this work focuses on design of heat exchanger network. The optimum Pinch analysis is at 115 ℃/105 ℃. The new heat exchanger network designed can improve a rate of energy consumption in the production process. Cumene and DIPB vent condenser and one more is Benzene recycle from Alkylation reactor exchanges heat with cold stream of Benzene recycle from Alkylation reactor and Cumene column S3 generator, respectively. The heating and cooling energy will increase when the operating rate increase and found that heat exchanger network reduce the heating energy, representing 34.1 percent of heat exchanger network base case at 90% operating rate. The return of the project investment is approximately within 2 years.
