Ozone Decomposition in Four Types of Spouted Beds, With or Without a Draft-Tube

Abstract

Ozone decomposition on the iron oxide catalyst was carried out in four types of spouted beds and the gas conversions were compared, for the purpose of comparing the gas–solid contacting efficiency of these spouted beds. These four types include a top-sealed spouted bed, a screen-bottomed spouted bed, and top-outlet spouted bed with or without a draft-tube. The top-sealed spouted bed and the screen-bottomed spouted bed provided higher gas conversion compared with the other two types of spouted beds. The gas–solid contacting efficiency of these spouted beds was compared with that of a hypothetically isothermal fixed bed. The top-outlet spouted bed with a draft-tube provided poorer contacting efficiency than the other types of spouted beds.