Apparatus for removing finely divided solids from gas

Claim 2

In an apparatus for separating finely divided solids from gas comprising: (a) a generally cylindrical vessel having a gas inlet opening in its side wall, a gas outlet opening centrally disposed in its top, a solids outlet centrally disposed in its bottom and at least one solids inlet opening disposed in its top laterally from the gas outlet opening, (b) a first generally cylindrical wall member having a diameter less than that of the vessel and disposed in the vessel to provide an elongated annular space between said first wall member and the wall of the vessel and in sealing engagement with the top portion of the vessel, and the annular space between the first wall member and the wall of the vessel being unobstructed and in open communication with the solids outlet at the bottom of the vessel, (c) a second generally cylindrical wall member having a diameter less than said first wall member disposed in said first wall member to provide an elongated annular space between the two wall members, the space enclosed by said second wall member being in open communication with the gas outlet opening in the top of the vessel and with the solids outlet at the bottom of the vessel, (d) a mass of particulate solid contact material filling the annular space between the two cylindrical wall members from the upper end of the second cylindrical wall member to the lower portion of the vessel, said mass being in open communication with the solids outlet opening, and (e) the surfaces of both cylindrical wall members being louvered surfaces formed by perforating said walls to form louver vanes inclined to the vertical at an angle of about 15° to 80° and having louver openings sufficiently large that essentially all of the particles constituting the contact mass are capable of passing through the openings, the louver vanes of the first cylindrical wall member extending outwardly and those of the second cylindrical wall member extending inwardly, (f) the improvement wherein a short portion of the lower end of the first wall member is bent inwardly so that the bent portion is inclined to the vertical at an angle of about 20° to 70°.

Claim 3

In an apparatus for separating finely divided solids from gas comprising: (a) a generally cylindrical vessel having a gas inlet opening in its side wall, a gas outlet opening centrally disposed in it top, a solids outlet centrally disposed in its bottom and at least one solids inlet opening disposed in its top laterally from the gas outlet opening, (b) a first generally cylindrical wall member having a diameter less than that of the vessel and disposed in the vessel to provide an elongated annular space between said first wall member and the wall of the vessel and in sealing engagement with the top portion of the vessel, and the annular space between the first wall member and the wall of the vessel being unobstructed and in open communication with the solids outlet at the bottom of the vessel, (c) a second generally cylindrical wall member having a diameter less than said first wall member disposed in said first wall member to provide an elongated annular space between the two wall members, the space enclosed by said second wall member being in open communication with the gas outlet opening in the top of the vessel and with the solids outlet at the bottom of the vessel, (d) a mass of particulate solid contact material filling the annular space between the two cylindrical wall members from the upper end of the second cylindrical wall member to the lower portion of the vessel, said mass being in open communication with the solids outlet opening, and (e) the surfaces of both cylindrical wall members being louvered surfaces formed by perforating said walls to form louver vanes inclined to the vertical at an angle of about 15° to 80° and having louver openings sufficiently large that essentially all of the particles constituting the contact mass are capable of passing through the openings, the louver vanes of the first cylindrical wall member extending outwardly and those of the second cylindrical wall member extending inwardly, (f) the improvement wherein a perforated third cylindrical wall member having a diameter of 1 to 10 inches greater than the diameter of the second wall member is disposed between the first and second wall members, the perforations of said third wall member being sufficiently large to permit essentially all of the solid contact material particles to pass through them.

Claim 4

In an apparatus for separating finely divided solids from gas comprising: (a) a generally cylindrical vessel having a gas inlet opening in its side wall, a gas outlet opening centrally disposed in it top, a solids outlet centrally disposed in its bottom and at least one solids inlet opening disposed in its top laterally from the gas outlet opening, (b) a first generally cylindrical wall member having a diameter less than that of the vessel and disposed in the vessel to provide an elongated annular space between said first wall member and the wall of the vessel and in sealing engagement with the top portion of the vessel, and the annular space between the first wall member and the wall of the vessel being unobstructed and in open communication with the solids outlet at the bottom of the vessel, (c) a second generally cylindrical wall member having a diameter less than said first wall member disposed in said first wall member to provide an elongated annular space between the two wall members, the space enclosed by said second wall member being in open communication with the gas outlet opening in the top of the vessel and with the solids outlet at the bottom of the vessel, (d) a mass of particulate solid contact material filling the annular space between the two cylindrical wall members from the upper end of the second cylindrical wall member to the lower portion of the vessel, said mass being in open communication with the solids outlet opening, and (e) the surfaces of both cylindrical wall members being louvered surfaces formed by perforating said walls to form louver vanes inclined to the vertical at an angle of about 15° to 80° and having louver openings sufficiently large that essentially all of the particles constituting the contact mass are capable of passing through the openings, the louver vanes of the first cylindrical wall member extending outwardly and those of the second cylindrical wall member extending inwardly, (f) the improvement wherein a perforated third cylindrical wall member having a diameter of 1 to 10 inches greater than the diameter of the second wall member is disposed between the first and second wall members, the perforations of said third wall member being sufficiently large to permit essentially all of the solid contact material particles to pass through them.

Claim 7

In an apparatus for separating finely divided solids from gas comprising: (a) a generally cylindrical vessel having a gas inlet opening in its side wall, a gas outlet opening centrally disposed in its top, a solids outlet centrally disposed in its bottom and at least one solids inlet opening disposed in its top laterally from the gas outlet opening, (b) a first generally cylindrical wall member having a diameter less than that of the vessel and disposed in the vessel to provide an elongated annular space between said first wall member and the wall of the vessel and in sealing engagement with the top portion of the vessel, and the annular space between the first wall member and the wall of the vessel being unobstructed and in open communication with the solids outlet at the bottom of the vessel, (c) a second generally cylindrical wall member having a diameter less than said first wall member disposed in said first wall member to provide an elongated annular space between the two wall members, the space enclosed by said second wall member being in open communication with the gas outlet opening in the top of the vessel and with the solids outlet at the bottom of the vessel, (d) a mass of particulate solid contact material filling the annular space between the two cylindrical wall members from the upper end of the second cylindrical wall member to the lower portion of the vessel, said mass being in open communication with the solids outlet opening, and (e) the surfaces of both cylindrical wall members being louvered surfaces formed by perforating said walls to form louver vanes inclined to the vertical at an angle of about 15° to 80° and having louver openings sufficiently large that essentially all of the particles constituting the contact mass are capable of passing through the openings, the louver vanes of the first cylindrical wall member extending outwardly and those of the second cylindrical wall member extending inwardly, (f) the improvement wherein the upper portion of the first cylindrical wall member is unlouvered, not perforated, and the second cylindrical wall member has an upper surface which has a louvered portion which faces the unlouvered portion of the first wall member.

Claim 8

In an apparatus for separating finely divided solids from gas comprising: (a) a generally cylindrical vessel having a gas inlet opening in its side wall, a gas outlet opening centrally disposed in its top, a solids outlet centrally disposed in its bottom and at least one solids inlet opening disposed in its top laterally from the gas outlet opening, (b) a first generally cylindrical wall member having a diameter less than that of the vessel and disposed in the vessel to provide an elongated annular space between said first wall member and the wall of the vessel and in sealing engagement with the top portion of the vessel, and the annular space between the first wall member and the wall of the vessel being unobstructed and in open communication with the solids outlet at the bottom of the vessel, (c) a second generally cylindrical wall member having a diameter less than said first wall member disposed in said first wall member to provide an elongated annular space between the two wall members, the space enclosed by said second wall member being in open communication with the gas outlet opening in the top of the vessel and with the solids outlet at the bottom of the vessel, (d) a mass of particulate solid contact material filling the annular space between the two cylindrical wall members from the upper end of the second cylindrical wall member to the lower portion of the vessel, said mass being in open communication with the solids outlet opening, and (e) the surfaces of both cylindrical wall members being louvered surfaces formed by perforating said walls to form louver vanes inclined to the vertical at an angle of about 15° to 80° and having louver openings sufficiently large that essentially all of the particles constituting the contact mass are capable of passing through the openings, the louver vanes of the first cylindrical wall member extending outwardly and those of the second cylindrical wall member extending inwardly, (f) the improvement wherein the upper portion of the first cylindrical wall member is unlouvered, not perforated, and the second cylindrical wall member has an upper surface which has a louvered portion which faces the unlouvered portion of the first wall member.