Artificial Intelligence Modelling Approach for the Prediction of CO-Rich Hydrogen Production Rate from Methane Dry Reforming

• Main Authors: Bamidele Victor Ayodele, Siti Indati Mustapa, May Ali Alsaffar, Chin Kui Cheng
• Format: Article
• Language: English
• Published: MDPI AG 2019-08-01
• Series: Catalysts
• Subjects: artificial neural network; kinetic modeling; cobalt-praseodymium (III) oxide; CO-rich hydrogen; methane dry reforming
• Online Access: https://www.mdpi.com/2073-4344/9/9/738

This study investigates the applicability of the Leven–Marquardt algorithm, Bayesian regularization, and a scaled conjugate gradient algorithm as training algorithms for an artificial neural network (ANN) predictively modeling the rate of CO and H₂ production by methane dry reforming over a Co/Pr₂O₃ catalyst. The dataset employed for the ANN modeling was obtained using a central composite experimental design. The input parameters consisted of CH₄ partial pressure, CO₂ partial pressure, and reaction temperature, while the target parameters included the rate of CO and H₂ production. A neural network architecture of 3 13 2, 3 15 2, and 3 15 2 representing the input layer, hidden neuron layer, and target (output) layer were employed for the Leven–Marquardt, Bayesian regularization, and scaled conjugate gradient training algorithms, respectively. The ANN training with each of the algorithms resulted in an accurate prediction of the rate of CO and H₂ production. The best prediction was, however, obtained using the Bayesian regularization algorithm with the lowest standard error of estimates (SEE). The high values of coefficient of determination (R² > 0.9) obtained from the parity plots are an indication that the predicted rates of CO and H₂ production were strongly correlated with the observed values.