Orthogonal Array Approach Optimization of Catalytic Systems

Abstract

The paper presents the optimization of the epoxidation process of crotyl alcohol on the Ti-MWW catalyst at atmospheric pressure, based on the Taguchi orthogonal array method. Shown are the influence of the most important process parameters, such a temperature, molar ratio of crotyl alcohol to H2O2, methanol concentration, Ti-MWW catalyst concentration and reaction time. The response functions characterizing epoxidation process were selectivity of transformation to 2,3-epoxybutan-1-ol with respect to reacted crotyl alcohol – S2,3EB1O/CA, conversion of crotyl alcohol CCA, yield of 2,3-epoxybutan-1-ol W2,3EB1O. Based on the calculated signal/noise ratios for individual parameters of the process, their impact on all output parameters was determined and optimal process conditions were determined to reach its the maximum. The empirical verification of this process was also performed by comparing both output parameters predicted and achieved in the tests. This method allows limiting the number of tests required to reach the wished test results, diminution the time needed course for their achievement, and at the same time their expenses.