Conference Dates

May 13-17, 2007

Abstract

Catalytic ozone decomposition was conducted in an 8.20 m high, 0.09 m inner diameter downer. The ozone concentration profiles were measured under a series of operating conditions. It is found that the ozone distribution in a downer is generally more uniform both axially and laterally than in a riser, and that there exists a relatively significant non-uniform distribution in the entrance acceleration region of the downer.he increase of solid mass flow rate will slightly increase the ozone decomposition. In addition, the acceleration region has a great effect on the reaction.

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