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    1.
    发明专利
    未知

    公开(公告)号：BR0317674A

    公开(公告)日：2005-11-22

    申请号：BR0317674

    申请日：2003-11-14

    Applicant: OUTOKUMPU OY

    Inventor： DER MICHAEL STR ,  SNEYD STUART ,  HASSELWANDER KLAUS

    IPC: B01D53/12 ,  B01D53/50 ,  B01D53/68 ,  B01J8/18 ,  B01J8/24

    Abstract: The present invention relates to a method for removing gaseous pollutants from exhaust gases, in which the gaseous pollutants react with a fine-grained reactant by forming solids in a fluidized-bed reactor (2), and to a corresponding plant. To achieve low pollutant concentrations in the clean gas with an almost stoichiometric consumption of reactant, it is proposed to introduce the exhaust gas from below through a preferably central gas supply tube ( 20 ) into a mixing chamber ( 21 ) of the reactor ( 2 ), the gas supply tube ( 20 ) being at least partly surrounded by a stationary annular fluidized bed ( 22 ) of reactant, which bed is fluidized by supplying fluidizing gas, and to adjust the the gas velocities of the exhaust gas and of the fluidizing gas for the annular fluidized bed ( 22 ) such that the Particle-Froude-Numbers in the gas supply tube ( 20 ) are between 1 and 100, in the annular fluidized bed ( 22 ) between 0.02 and 2, and in the mixing chamber ( 21 ) between 0.3 and 30.

    4.
    发明专利
    未知

    公开(公告)号：BR0317684A

    公开(公告)日：2005-11-29

    申请号：BR0317684

    申请日：2003-12-13

    Applicant: OUTOKUMPU OY

    Inventor： HIRSCH MARTIN ,  STOCKHAUSEN WERNER ,  DER MICHAEL STR

    IPC: B01J8/00 ,  B01J8/18 ,  B01J8/24 ,  B01J8/38 ,  C01B13/32 ,  C01F7/44 ,  F23C10/12 ,  F23C10/14

    Abstract: A plant for producing metal oxide from metal compounds includes a fluidized-bed reactor in which the metal compounds are heated by a combustion of a fuel to produce metal oxide. The fluidized-bed-reactor reactor includes at least one gas supply tube at least partly surrounded by an annular chamber in which a stationary annular fluidized bed is disposed, and a mixing chamber disposed above an orifice region of the gas supply tube. A gas flowing through the gas supply tube entrains solids from the stationary annular fluidized bed when passing through the orifice region.

    5.
    发明专利
    未知

    公开(公告)号：BR0317669A

    公开(公告)日：2005-11-29

    申请号：BR0317669

    申请日：2003-11-25

    Applicant: OUTOKUMPU OY

    Inventor： DER MICHAEL STR ,  ANASTASIJEVIC NIKOLA ,  WILLERT-PORADA MONIKA ,  GERDES THORSTEN

    IPC: B01J8/38 ,  B01J19/12 ,  C04B2/10 ,  H05B6/78 ,  H05B6/80

    Abstract: This invention relates to a method for the thermal treatment of granular solids in a reactor ( 1 ) with swirl chamber ( 4 ), which in particular constitutes an flash reactor or suspension reactor, wherein the microwave radiation from a microwave source ( 2 ) is fed into the reactor ( 1 ) through a wave guide, and to a corresponding plant. To avoid deposits in the wave guide, the same constitutes a gas supply tube ( 3 ), a gas stream being additionally fed through the gas supply tube ( 3 ) into the swirl chamber ( 4 ).

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