Application of Response Surface Methodology for Optimization of Amorphous Silica Extracted from Rice Husk

OLAWALE, O. and AKINMOLADUN, A.I. and OYAWALE, F.A. and BABA, A.O. Application of Response Surface Methodology for Optimization of Amorphous Silica Extracted from Rice Husk. International Journal of Scientific & Engineering Research.

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Abstract

In this research, Response Surface Methodology (RSM) was used to optimise the effect of three controllable input variables. To study the proposed second-order polynomial model for maximising Amorphous silica, a Central Composite Design (CCD) was used to estimation the model coefficients of the three input factors, which are alleged to influence the amorphous silica production process. The response is modelled using RSM on experimental data. The significant coefficients are obtained by performing Analysis of Variance (ANOVA) at 5% level of significance. It was observed that time of combustion at 3h, had significant effect on the maximising amorphous silica production. The model sufficiency is very satisfactory as the Coefficient of Determination (R2 ) is found to be a87.91% and adjusted R2 -statistic (R2 adj) is 75.82%.

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