Nomenclature


as lower and upper limits, respectively. After the optimization, we obtained 26.99% as the minimum composition of methyl acetate and 2 kW as the required optimized

The summary of optimization and sensitivity results obtained from Aspen Plus

simulation is included in Table 5. The optimized value of reboiler heat duty obtained was 2 kW, and optimized reflux ratio obtained was 4.69. These values are close to the experimental values which again show good agreement between experimental and simulation studies. The optimized flow rate of methyl acetate obtained using reboiler heat duty as manipulated variable is 0.093 lbmol/hr., and optimized product fraction obtained using standard volumetric flow rate of acetic acid is 0.96. The sensitivity result curve for optimized flow rate and composition of methyl acetate is shown in Figure 11, and sensitivity result curve for variation in column

temperature based on reflux flow is shown in Figure 12.

heat duty.

106

Figure 12.

Figure 11.

Sensitivity curve for optimized flow rate and composition.

Distillation - Modelling, Simulation and Optimization

Sensitivity curve for column temperature based on reflux ratio.

Distillation - Modelling, Simulation and Optimization

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