Optimisation parameters of the reactive separations with very fast chemical reaction
Systematic methods and tools for managing the complexity
Process Simulation & Optimization - III (T4-9c)
Keywords: reactive separation, optimisation, fast reaction
The processes of reactive separations proved to be a perspective technology with many advantages. However, it is still being used less than capable. Utilization of such process depends on many factors.
The advantages were described many times but still reactive separations have to face a challenge of minimizing the disadvantages. Only after that reaction and separation steps in-situ become viable.
The problems with position of the feeds, reboiler capacity and duty, condenser type and output and number of trays, height of the column respectively, will be discussed in the paper.
Reactive distillation tray column has been selected for subject to be modelled. Selected reaction system consists of two reverse reactions one of which is very fast, what introduces more complications. If one of the reactants is fed in the gaseous phase, reaction then takes place in the liquid film in preference; that is why non-equilibrium model was selected using Fick equation describing mass transfer in the film layer. If the reaction is extremely fast (almost instantaneous) it takes place only in the film layer and the process is similar to that of reactive absorption. The simulations are held at various Hatta numbers.
Acknowledgement: This work was supported by the Slovak Research and Development Agency under the contract No. LPP-0181-06.
See the full pdf manuscript of the abstract.
Presented Wednesday 19, 11:40 to 12:00, in session Process Simulation & Optimization - III (T4-9c).
