Drying and Mixing of Solids and Particles Residence Time Distribution in Four Impinging Streams and Multistage Two Impinging Streams Reactors

The novel four impinging streams (FIS) and multistage two impinging streams (TIS) reactors were investigated as efficient tools for effecting gas-solids operations. Some aspects of their hydrodynamics and heating and mixing performance are discussed. The FIS reactor is shown superior to conventional and one-stage TIS reactors for solids mixing, and its solids drying performance is shown to improve for increased solids load. The parameters obtained for a stochastic model, employed to describe the particle residence time distribution (RTD) in multistage TIS reactors, are related to reactor operation parameters.