Performance of a Coaxial Gas-Solid Two-Impinging-Streams (TIS) Reactor: Hydrodynamics, Residence Time Distribution, and Drying Heat Transfer

The performance of a coaxial two-impinging-streams (TIS) reactor was investigated with respect to the hydrodynamics, the holdup of the particles, their mean residence time, and the residence time distribution as well as the drying heat-transfer process of solids. The results obtained arevery useful for practical applications and provide additional insight about the behavior of the reactor. Itis concluded that the effective volume for the transfer process is not the actual volume ofthe reactor but is a certain volume located between the faces of the inlet pipes. Thus, it may be possibleto construct very small and effective reactors where their size limit is dictated mainly by hydrodynamic considerations.