AN APPARATUS FOR CONDUCTING PHYSICAL, CHEMICAL, OR BIOLOGICAL INTERACTION BETWEEN GASES AND SOLID PARTICLES
The invention provides an apparatus for conducting interaction between gases and solid particles. The apparatus has a vertical hollow shaft with a vertical row of constrictions formed internally and defining a series of intercommunicating chambers in the shaft for guiding the gas and particles e.g. in counter current to effect interaction there between, e.g. for transferring thermal energy. To enable redesign of the apparatus and to enable an improved match between need for capacity and size of the apparatus, the invention provides an apparatus where the shaft comprises a stack of separate modules arranged vertically above each other or side-by-side whereby the apparatus becomes modular.