PROCESS IMPROVEMENTS BY THE UTILIZATION OF AN ANNULAR SLIT REACTOR

For a strongly endothermic catalytic dehydrocyclisation a new design o f an annular slit reactor was evaluated. The major advantage of the de sign is an optimised temperature profile. Consequently, both a higher selectivity and a higher conversion were achieved. Furthermore, the fo rmation of a problematic side product was significantly reduced, leadi ng to a simplification of the subsequent purification step and an incr eased productivity. From an economic point of view, yearly savings of up to CHF 1 Mio. are anticipated compared to the present manufacturing costs.