Here, it is worth mentioning that 𝑟 1 𝑒𝑛 means the rate of formation of 'hypothetical' alkene with carbon number 1 which are not considered as a product of CO2 hydrogenation but used only to calculate the rates of alkene formation. In the case of paraffins, a non-linear dependence of hydrocarbon distribution in the corresponding ASF coordinates is observed (see Figure ). Such non-linear behavior can be related to the presence of the two different types of active sites taking part in processes of the chain growth that was discussed in the work. Thus, the rate of paraffin formation with carbon number n can be described as: fraction 𝜇 also depend on reaction conditions (partial pressure of compounds, temperature), and that the ANN model was used for predicting the values of these parameters.