Modelling of an industrial plant for vinyl chloride production

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Modelling of an industrial plant for vinyl chloride production

Modelling of an industrial plant for vinyl chloride production

ABSTRACT

Vinyl chloride is one of the leading chemicals, used mainly for manufacturing polyvinyl chloride (PVC). The vinyl chloride production is almost exclusively realised through the so-called balanced process, where ethylene, chlorine and oxygen are con- verted into the product, involving 1,2-dichloroethane as intermediate. In this thesis a complete flow-sheet representing the whole plant is developed by using the gPROMSR ProcessBuilder process simulator. Design alternatives have been analysed in order to represent an optimal process configuration close to the real practice. Molecular kinetic models are implemented in each reactor unit considering main reactions and most sig- nificant side reactions. The thermodynamic model reliability is ensured by regression and implementation of binary interaction parameters from experimental data for the main binary mixtures involved in the process. The accuracy of simulation results is verified by comparison with plant and unit operations data available from the litera- ture.

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