Abstract
An artificial neural network approach was presently used to model the hydroisomerization reaction of n-hexane over platinum supported on tungstated zirconia (Pt/WOx-ZrO2) catalysts doped with different amounts of iron. Four different multilayer feed-forward neural network arrangements were then devised and trained using previously reported experimental catalyst activity in terms of selectivity (S) and yield (Y) of 2,2-dimethylbutane measured at several Fe/W weight ratios and surfactant/zirconia molar ratios (SMR). The performance of the four neural networks during the training process was acceptable despite the fact that a limited database was used for such a purpose; the catalyst synthesis variables chosen as neural network inputs (SMR, %W, and %Fe) played a very important role in successfully correlating the catalyst activity (in terms of S and Y of 2,2-dimethylbutane) in all cases. The predictive capabilities of the trained neural networks were further verified by computing some selectivities and yield...
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