PROCESO PARA LA REDUCCION DE SOLIDOS QUE CONTIENEN COBRE EN UN LECHO FLUIDIZADO

    公开(公告)号:PE20060029A1

    公开(公告)日:2006-02-20

    申请号:PE2005000123

    申请日:2005-02-02

    Applicant: OUTOKUMPU OY

    Abstract: DONDE EL PROCESO COMPRENDE: a) INTRODUCIR LOS SOLIDOS EN UN REACTOR DE LECHO FLUIDIZADO, EN FORMA DE GRANULOS CON UN GRANO MAXIMO DE 2 mm, DONDE SON REDUCIDOS CON UN AGENTE DE REDUCCION A UNA TEMPERATURA ENTRE 200°C Y 1000°C, SIENDO LA DENSIDAD MEDIA DE LA SUSPENSION DEL LECHO FLUIDIZADO EN EL REACTOR AJUSTADA A MENOS DE 1000 Kg/cm3; Y, b) INTRODUCIR UN PRIMER GAS O MEZCLA DE GASES DESDE ABAJO A TRAVES DE UNA TUBERIA QUE ALIMENTA GAS EN UNA CAMARA DE MEZCLADO DEL REACTOR, DONDE LA TUBERIA ES RODEADA POR UN LECHO FLUIDIZADO ANULAR ESTACIONARIO EL CUAL ES FLUIDIZADO POR LA INTRODUCCION DE GAS FLUIDIZANTE Y LAS VELOCIDADES DE GAS DEL PRIMER GAS O MEZCLA DE GASES Y EL GAS FLUIDIZANTE PARA EL LECHO SON AJUSTADAS DE MODO QUE LOS NUMEROS DE FROUDE DE PARTICULAS EN LA TUBERIA ESTAN ENTRE 1 Y 100, EN EL LECHO ENTRE 0,02 Y 2, Y EN LA CAMARA DE MEZCLADO ENTRE 0,3 Y 30. COMO MATERIAL DE PARTIDA A SER REDUCIDO SE USA OXIDO DE COBRE (I). EL AGENTE DE REDUCCION ES GAS QUE CONTIENE DE 80% A 99,9% DE HIDROGENO Y ENTRE 0 Y 20% DE NITROGENO. LOS SOLIDOS SON SECADOS ANTES DE SER CARGADOS EN EL REACTOR. LUEGO DE REPROCESAR POR SEPARACION DE SOLIDOS, SEPARACION POR ENFRIAMIENTO Y AGUA, AL MENOS PARTE DEL GAS DE DESECHO DEL REACTOR ES CALENTADO Y CIRCULADO AL REACTOR

    45.
    发明专利
    未知

    公开(公告)号:NO20053269D0

    公开(公告)日:2005-07-04

    申请号:NO20053269

    申请日:2005-07-04

    Applicant: OUTOKUMPU OY

    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.

    DEVICE FOR THERMALLY TREATING GRANULAR SOLID MATTER

    公开(公告)号:CA2384957A1

    公开(公告)日:2001-03-29

    申请号:CA2384957

    申请日:2000-07-03

    Applicant: OUTOKUMPU OY

    Abstract: The invention relates to a device for thermally treating granular solid matt er for the purpose of carrying out endothermic reactions. CO2 and/or water is removed from the solid matter in a reactor by burning fuel to generate a combustion gas in the reactor, vortexing the solid matter with the combustio n gases in the reactor, using hot exhaust gas from the reactor to pre-heat the solid matter and removing the solid matter from the reactor. The reactor use d is an approximately cylindrical, horizontal cyclone with an approximately horizontal axis of symmetry and vortex. Fuel, solid matter and gases are supplied in an inlet zone of the reactor while a rotation vortex is formed i n said inlet zone and solid matter and hot gas are removed from an outlet zone of the reactor.

    METHOD AND UNIT FOR PRODUCTION OF LOW TEMPERATURE COKE

    公开(公告)号:UA79669C2

    公开(公告)日:2007-07-10

    申请号:UA2005007297

    申请日:2003-12-01

    Applicant: OUTOKUMPU OY

    Abstract: The present invention relates to a method and a plant for producing low temperature coke, in which granular coal and possibly further solids are heated to a temperature of 700 to 1050 DEGREE C in a fluidized-bed reactor by means of an oxygen-containing gas. To improve the utilization of energy it is proposed to introduce a first gas or gas mixture from below through at least one gas supply tube into a mixing chamber region of the reactor, the gas supply tube being at least partly surrounded by a stationary annular fluidized bed which is fluidized by supplying fluidizing gas. The gas velocities of the first gas or gas mixture and of the fluidizing gas for the annular fluidized bed are adjusted such that the Particle-Froude-Numbers in the gas supply tube are between 1 and 100, in the annular fluidized bed between 0.02 and 2 and in the 25 mixing chamber between 0.3 and 30.

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