CATALYST AND METHOD FOR PURIFICATION OF EXHAUST GAS

    公开(公告)号:JPH03221147A

    公开(公告)日:1991-09-30

    申请号:JP19934890

    申请日:1990-07-30

    Applicant: DEGUSSA

    Abstract: PURPOSE: To form a catalyst for purifying exhaust gases capable of selectively reducing nitrogen oxides by supporting specific amounts of oxides of Ti, Sn, Be or the like and oxides, sulfates or the like of Fe and V on a honeycomb carrier. CONSTITUTION: This catalyst for purifying exhaust gases is obtained by molding a honeycomb carrier consisting of about 2-70 wt.% of CeO2 and 0-20 wt.% of ZrO2 as well as optional iron oxides, alkaline earth metal oxides and/or aluminum oxide of the transition column containing rare earth metal oxides and then, supporting catalytic components of Pt and/or Pd, optionally Rh on the honeycomb carrier. The harmful substances such as nitrogen oxides, hydrocarbons, carbon monoxide, ammonia slip from denitrification and sulfur dioxide contained in the exhaust gases are purified by bringing the exhaust gases into contact with the catalyst mentioned above.

    DISPOSITIVO PARA LA SUJECION DE CATALIZADORES MONOLITICOS.

    公开(公告)号:ES2000116A4

    公开(公告)日:1987-12-16

    申请号:ES87100966

    申请日:1987-01-23

    Applicant: DEGUSSA

    Abstract: EL INVENTO SE REFIERE A UN DISPOSITIVO PARA EL APOYO DE CATALIZADORES DE ESTADO SOLIDO DE CERAMICA, ESPECIALMENTE DE SECCION TRANSVERSAL CUADRATICA, ASI COMO PARA REUNIR VARIOS DE ESTOS CATALIZADORES PARA FORMAR UN PAQUETE. EL DISPOSITIVO ESTA COMPUESTO DE UN MANGUITO ELASTICO (2), FIJADO EN UNO O DOS DE LOS EXTREMOS DEL CATALIZADOR DE ESTADO SOLIDO Y DE UN BASTIDOR METALICO (3) QUE VIENE FIJADO BAJO PRESION SOBRE EL MANGUITO (2). EN DOS DE SUS SUPERFICIES LATERALES, EL BASTIDOR (3) DISPONE DE ESCOTES Y/O ACANALADURAS REBOTADORAS (4) Y EN LAS DOS SUPERFICIES CONTIGUAS RESTANTES DISPONE DE RESALTES (5) QUE PUEDEN ENGRANAR DE UNION POSITIVA EN LOS ESCOTES Y/O ACANALADURAS (4) DE OTROS BASTIDORES CONTIGUOS (3).

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