Optimization of dynamic bioethanol production from the oil palm trunk

This study concerning the bioethanol production process and its optimization plays anessential role in purification. A simulation of the production of bioethanol was carried out using theAspen Plus software version 11. The design of the experiments involved Response SurfaceMethodology (RSM). The Design-Expert software version 12 (trial) can generate an optimal valuecapable of lowering the levels of emitted carbon dioxide, minimizing utility expenses, and enhancingthe daily quantity of ethanol produced. It was confirmed that the model equation was acceptable forthe ethanol mass flow, utility expenses, carbon dioxide emissions, and % purity of ethanol with a95% confidence level and achieving an R-squared value prediction of 0.95-1.00. Application of theoptimal values would result in lower utility expenses by 0.96%, a carbon dioxide emission reductionof 1.10%, and increase in the % purity of ethanol of 9.20%, and a rise in the quantity of ethanol of3.20%. The system dynamics were then examined to determine the optimal conditions. Theparameters used for the controller are control of the column pressure, control of the column baselevel, and control of the reflux drum level. These parameters can provide rapid system stabilization,thereby ensuring the product meets the specifications.