Design and Control of Thermally Coupled Reactive Distillation for the Production of Methyl Valerate
نویسندگان
چکیده
Methyl valerate (VAME), also known as methyl pentanoate, is the methyl ester of the pentanoic acid (valeric acid). VAME is usually used as fragrance in the production of beauty care, soap and laundry detergents. High purity of VAME can also be used as plasticizer. This study presents the design details of the process for the manufacture of VAME. Reactive distillation column (RDC) is used in the production process to overcome equilibrium limitation of the esterification reaction. Two products of the reaction can be separated by two strippers and a decanter. A thermally coupled design is then developed to reduce the remixing effect in the rectifying section of the RDC. The simulation results show that 30% energy saving can be achieved by using the proposed thermally coupled reactive distillation process. Two control structures are proposed with the capability of maintaining high purity product under throughput and composition disturbances.
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