Industrial photochemistry V: modelling and trial runs of a reactor with separate photochemical and thermal steps

Abstract Annular reactors adapted to successive toluene chlorination have been described in the preceding papers in this series. In this paper a theoretical working model of a reactor in which the purely photochemical stage (initiation) is separated from the subsequent thermal stage (propagation) is reported. The model is in satisfactory agreement with experimental data obtained using the photochlorination of toluene as a reaction model. The advantages and disadvantages of this type of reactor are described.