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The objective of this study was to maximize the conversion of saponification reaction in a
continuous stirred tank reactor (CSTR). Full two-level factorial design and response surface
methodology (RSM) were used t o d e t e r m i n e t h e optimum values of significant factors. The effect
of five factors (sodium hydroxide and ethylacetate concentrations, feed ratio, agitation rate and
temperature) was studied on the fractional conversion of sodium hydroxide (XNaOH). As a result of
screening experiments, two factors (sodium hydroxide and ethylacetate concentrations) and their
combined effect were found to be significant operating parameters for the saponification reaction in
continuous stirred tank reactor (CSTR). The optimum values of these significant factors were also
determined using response surface methodology (RSM). For maximum conversion of sodium
hydroxide (XNaOH), i.e., 96.71%, the optimum values of sodium hydroxide and ethylacetate
concentrations were found to be 0.01mol/L and 0.1 mol/L, respectively. Acorrelation was developed to
show the relationship between different significant factors and response. The validity of the model was
checked using analysis of variance (ANOVA). The experimental results are believed to be within
reasonable accuracy and may be applicable for the improvement of such processes on industrial scale.
I. Ullah, M. I. Ahmad, M. Younas. (2015) Optimization of Saponification Reaction in a Continuous Stirred Tank Reactor (CSTR) Using Design of Experiments, Pakistan Journal of Engineering and Applied Sciences, VOLUME 16, Issue 1.
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