Steps in chemical process modelling control

In the next subsection, kinetic definitions and concepts are introduced. Subsequently, relevant properties of chemical operations w.r.t their modelling are outlined. Special 

In reaction kinetics, the object of interest is the progress of a chemical reaction measured in terms of the change in concentration of the corresponding reactants and products. The change of a component s amount in time is defined as the reaction rate of this component. Assuming constant volume this equals the concentration of this component. The reaction rate r, of component j can be expressed as the change in concentration Cj over time  

The change in concentration typically depends on the reaction time, the concentration of the other components, the temperature, and reaction specific properties. Temperature 

If one molecule of Ai is split into the products, it follows Ui = -1. For the change in concentration of the reactant follows  

In reality, most chemical reactions consist of numerous elementary reactions combined in reaction networks that are much more difficult to describe. An interesting elementary reaction is a 2-step sequential reaction which is relevant e.g. in modelling thermal separation processes  

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