Effect of the tube shape on gas and particle flow in spouted beds with a porous draft tube

Hiroshi Nagashima, Toshifumi Ishikura, Mitsuharu Ide

The Canadian Journal of Chemical Engineering · 2009 · 42 citations · 15 references

Concepts

Abstract

Abstract Flow characteristics of a spouted bed with a porous draft tube have been investigated experimentally. In this study, both a cylindrical tube and a conical–cylindrical tube were used as the draft tube. As a result, the efficiency of gas–solid contact and solids circulation rate in the bed were considerably improved by inserting a conical–cylindrical porous draft tube into the bed. Moreover, it was confirmed that the gas flow rate through the annulus reached nearly the level of a conventional spouted bed by using conical–cylindrical porous draft tube.

References

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