Patent ID: 7141219
Filing Date: 2006-11-28
Classification: B01J,F23C,F28D

Abstract:
1. An apparatus for carrying out a physical chemical process on a medium, the apparatus comprising: a reservoir, a tube disposed in the reservoir and having a first end portion and a second end portion, tube plates, wherein the first end portion and second end portion of the tube are received in the tube plates, a first box and a second box, wherein the first end portion of the tube is in open communication with the first box and the second end portion of the tube is in open communication with the second box, a first distribution plate disposed in the second box, wherein the first distribution plate supports a first fluidized bed of granular material, wherein said first fluidized bed of granular material is maintainable in a quasi-stationary, fluidized condition by the medium, wherein the medium flows through the second box and the tube and entrained granular material is separated from the medium in the first box by gravity, a downcomer disposed outside the reservoir, a first discharge line provided in the first box, discharging the separated granular material and a partial flow of the medium to the downcomer, wherein the separated granular material is further separated from the partial flow of the medium in the downcomer by gravity, a second discharge line provided in the first box, discharging a main flow of the medium, wherein the granular material has been separated from the main flow of the medium, and a third discharge line provided near a first end in the downcomer, feeding the granular free partial flow of the medium to the main flow of the medium, and wherein said downcomer feeds the granular material separated from the partial flow medium to the second box; wherein the downcomer is provided near the first end with a first channel for downward transport of the granular material fed to the downcomer and a second channel for upward transport of the partial flow of the-medium without granular material, and wherein the downcomer is provided with a downwardly extending separation plate, forming the first channel and the second channel of the downcomer.