PROCESS AND APPARATUS FOR MONITORING INTERNAL CIRCULATION OF FLUIDIZED BED WITHIN A REACTOR VESSEL, COOLING AND MEASURING APPARATUS THEREFOR AND A REACTOR VESSEL PROVIDED THEREWITH

摘要

A process is claimed for monitoring the circulation of solid particles within a fluidised bed reactor. Fluidisation gas is injected into the base of the reactor and carries particles into the upper part, between vertical reactor walls (4). A portion of the solids fall down next to the reactor walls. Also claimed is the appts. where descending solids are caught in a small hopper (100) attached inside the wall of the reactor (4), with its own fluidisation system (102). Solids are removed via an evacuation duct (110) to a device which measures their flow rate (130), and are then returned (120) to the main reactor. IMAGE