Varying depth fluidized bed

摘要

A varying depth fluidized bed comprises a tank assembly containing fluidizable medium. The tank assembly comprises at least one step such that the depth of fluidizable medium is greater in one region of the tank assembly relative to another.

主权项

1. A bed comprising:
a tank assembly comprising a first diffuser board at a first height from a bottom of said tank assembly and a second diffuser board at a second height from the bottom of said tank assembly, said second height is greater than said first height, a portion of gas flowing through said first diffuser board flows through said second diffuser board into fluidizable medium contained by said tank assembly, said fluidizable medium receives gas from said first diffuser board and said second diffuser board, wherein said first diffuser board is substantially parallel with, and spaced from, said second diffuser board.