EXHAUST GAS PURIFYING CATALYST
The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the lower layer of the catalyst coating layer comprises a ceria-zirco...
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| creator | SUZUKI, HIROMASA YOSHIDA, TAKERU MIURA, MASAHIDE CHINZEI, ISAO AOKI, YUKI SUDA, AKIHIKO OKADA, MITSUYOSHI ORI, HIROTAKA MORIKAWA, AKIRA TANABE, TOSHITAKA SAITO, YOSHINORI IIZUKA, KOSUKE |
| description | The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the lower layer of the catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol% in relation to the total cation amount, and the molar ratio of (cerium + additional element) : (zirconium) is within the range from 43 : 57 to 48 : 52.
L'objet de la présente invention est de pourvoir à un catalyseur de purification des gaz d'échappement qui permet d'obtenir une performance de purification élevée tout en supprimant les émissions de H2S. L'objet est atteint par un catalyseur de purification des gaz d'échappement comportant une couche de revêtement dont la couche inférieure comprend un oxyde composite de type oxyde de cérium-oxyde de zirconium ayant une structure de réseau ordonné de type pyrochlore, l'oxyde composite de type oxyde de cérium-oxyde de zirconium contenant au moins un élément supplémentaire choisi dans le groupe constitué par le praséodyme, le lanthane, et l'yttrium à raison de 0,5 à 5,0 % en moles par rapport à la quantité totale de cations, et un rapport molaire (cérium + élément supplémentaire):(zirconium) dans la plage de 43:57 à 48:52. |
| format | Patent |
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L'objet de la présente invention est de pourvoir à un catalyseur de purification des gaz d'échappement qui permet d'obtenir une performance de purification élevée tout en supprimant les émissions de H2S. L'objet est atteint par un catalyseur de purification des gaz d'échappement comportant une couche de revêtement dont la couche inférieure comprend un oxyde composite de type oxyde de cérium-oxyde de zirconium ayant une structure de réseau ordonné de type pyrochlore, l'oxyde composite de type oxyde de cérium-oxyde de zirconium contenant au moins un élément supplémentaire choisi dans le groupe constitué par le praséodyme, le lanthane, et l'yttrium à raison de 0,5 à 5,0 % en moles par rapport à la quantité totale de cations, et un rapport molaire (cérium + élément supplémentaire):(zirconium) dans la plage de 43:57 à 48:52.</description><language>eng ; fre</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; CONCRETE ; INORGANIC CHEMISTRY ; LIME, MAGNESIA ; METALLURGY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; REFRACTORIES ; SEPARATION ; SLAG ; THEIR RELEVANT APPARATUS ; TRANSPORTING ; TREATMENT OF NATURAL STONE</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160616&DB=EPODOC&CC=WO&NR=2016092860A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160616&DB=EPODOC&CC=WO&NR=2016092860A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SUZUKI, HIROMASA</creatorcontrib><creatorcontrib>YOSHIDA, TAKERU</creatorcontrib><creatorcontrib>MIURA, MASAHIDE</creatorcontrib><creatorcontrib>CHINZEI, ISAO</creatorcontrib><creatorcontrib>AOKI, YUKI</creatorcontrib><creatorcontrib>SUDA, AKIHIKO</creatorcontrib><creatorcontrib>OKADA, MITSUYOSHI</creatorcontrib><creatorcontrib>ORI, HIROTAKA</creatorcontrib><creatorcontrib>MORIKAWA, AKIRA</creatorcontrib><creatorcontrib>TANABE, TOSHITAKA</creatorcontrib><creatorcontrib>SAITO, YOSHINORI</creatorcontrib><creatorcontrib>IIZUKA, KOSUKE</creatorcontrib><title>EXHAUST GAS PURIFYING CATALYST</title><description>The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the lower layer of the catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol% in relation to the total cation amount, and the molar ratio of (cerium + additional element) : (zirconium) is within the range from 43 : 57 to 48 : 52.
L'objet de la présente invention est de pourvoir à un catalyseur de purification des gaz d'échappement qui permet d'obtenir une performance de purification élevée tout en supprimant les émissions de H2S. L'objet est atteint par un catalyseur de purification des gaz d'échappement comportant une couche de revêtement dont la couche inférieure comprend un oxyde composite de type oxyde de cérium-oxyde de zirconium ayant une structure de réseau ordonné de type pyrochlore, l'oxyde composite de type oxyde de cérium-oxyde de zirconium contenant au moins un élément supplémentaire choisi dans le groupe constitué par le praséodyme, le lanthane, et l'yttrium à raison de 0,5 à 5,0 % en moles par rapport à la quantité totale de cations, et un rapport molaire (cérium + élément supplémentaire):(zirconium) dans la plage de 43:57 à 48:52.</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</subject><subject>CONCRETE</subject><subject>INORGANIC CHEMISTRY</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>REFRACTORIES</subject><subject>SEPARATION</subject><subject>SLAG</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBzjfBwDA0OUXB3DFYICA3ydIv09HNXcHYMcfSJDA7hYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXx4f5GBoZmBpZGFmYGjobGxKkCAEuhIng</recordid><startdate>20160616</startdate><enddate>20160616</enddate><creator>SUZUKI, HIROMASA</creator><creator>YOSHIDA, TAKERU</creator><creator>MIURA, MASAHIDE</creator><creator>CHINZEI, ISAO</creator><creator>AOKI, YUKI</creator><creator>SUDA, AKIHIKO</creator><creator>OKADA, MITSUYOSHI</creator><creator>ORI, HIROTAKA</creator><creator>MORIKAWA, AKIRA</creator><creator>TANABE, TOSHITAKA</creator><creator>SAITO, YOSHINORI</creator><creator>IIZUKA, KOSUKE</creator><scope>EVB</scope></search><sort><creationdate>20160616</creationdate><title>EXHAUST GAS PURIFYING CATALYST</title><author>SUZUKI, HIROMASA ; YOSHIDA, TAKERU ; MIURA, MASAHIDE ; CHINZEI, ISAO ; AOKI, YUKI ; SUDA, AKIHIKO ; OKADA, MITSUYOSHI ; ORI, HIROTAKA ; MORIKAWA, AKIRA ; TANABE, TOSHITAKA ; SAITO, YOSHINORI ; IIZUKA, KOSUKE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2016092860A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2016</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</topic><topic>CONCRETE</topic><topic>INORGANIC CHEMISTRY</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>REFRACTORIES</topic><topic>SEPARATION</topic><topic>SLAG</topic><topic>THEIR RELEVANT APPARATUS</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>SUZUKI, HIROMASA</creatorcontrib><creatorcontrib>YOSHIDA, TAKERU</creatorcontrib><creatorcontrib>MIURA, MASAHIDE</creatorcontrib><creatorcontrib>CHINZEI, ISAO</creatorcontrib><creatorcontrib>AOKI, YUKI</creatorcontrib><creatorcontrib>SUDA, AKIHIKO</creatorcontrib><creatorcontrib>OKADA, MITSUYOSHI</creatorcontrib><creatorcontrib>ORI, HIROTAKA</creatorcontrib><creatorcontrib>MORIKAWA, AKIRA</creatorcontrib><creatorcontrib>TANABE, TOSHITAKA</creatorcontrib><creatorcontrib>SAITO, YOSHINORI</creatorcontrib><creatorcontrib>IIZUKA, KOSUKE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SUZUKI, HIROMASA</au><au>YOSHIDA, TAKERU</au><au>MIURA, MASAHIDE</au><au>CHINZEI, ISAO</au><au>AOKI, YUKI</au><au>SUDA, AKIHIKO</au><au>OKADA, MITSUYOSHI</au><au>ORI, HIROTAKA</au><au>MORIKAWA, AKIRA</au><au>TANABE, TOSHITAKA</au><au>SAITO, YOSHINORI</au><au>IIZUKA, KOSUKE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>EXHAUST GAS PURIFYING CATALYST</title><date>2016-06-16</date><risdate>2016</risdate><abstract>The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing H2S emissions. The object is solved by an exhaust gas purifying catalyst in which the lower layer of the catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol% in relation to the total cation amount, and the molar ratio of (cerium + additional element) : (zirconium) is within the range from 43 : 57 to 48 : 52.
L'objet de la présente invention est de pourvoir à un catalyseur de purification des gaz d'échappement qui permet d'obtenir une performance de purification élevée tout en supprimant les émissions de H2S. L'objet est atteint par un catalyseur de purification des gaz d'échappement comportant une couche de revêtement dont la couche inférieure comprend un oxyde composite de type oxyde de cérium-oxyde de zirconium ayant une structure de réseau ordonné de type pyrochlore, l'oxyde composite de type oxyde de cérium-oxyde de zirconium contenant au moins un élément supplémentaire choisi dans le groupe constitué par le praséodyme, le lanthane, et l'yttrium à raison de 0,5 à 5,0 % en moles par rapport à la quantité totale de cations, et un rapport molaire (cérium + élément supplémentaire):(zirconium) dans la plage de 43:57 à 48:52.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS CONCRETE INORGANIC CHEMISTRY LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRACTORIES SEPARATION SLAG THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF NATURAL STONE |
| title | EXHAUST GAS PURIFYING CATALYST |
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