公开(公告)号：EP0722767A1

公开(公告)日：1996-07-24

申请号：EP96100562.6

申请日：1996-01-16

申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER INDUSTRIAL CO., LTD.

发明人： Banno, Kouji, c/o K.K. Toyota Chuo Kenkyusho ,  Sugiura, Masahiro, c/o K.K. Toyota Chuo Kenkyusho ,  Kumai, Yoko, c/o K.K. Toyota Chuo Kenkyusho ,  Doi, Haruo, c/o K.K. Toyota Chuo Kenkyusho ,  Nagami, Tetsuo, c/o Toyota Jidosha K.K. ,  Aono, Norihiko ,  Kasahara, Koichi ,  Matsumoto, Shigeji

IPC分类号： B01D53/94 ,  B01D53/86

CPC分类号： B01D53/864 ,  B01D53/944 ,  F02B2275/14 ,  Y02A50/2341

摘要： A catalyst for purifying exhaust gases comprises a catalyst carrier made of potassium titanate and a noble metal loaded on the catalyst carrier. The catalyst carrier is substantially free from alumina. This catalyst can oxidize at least hydrocarbons in exhaust gases at a high catalytic activity even at low temperatures, and at the same time can suppress SO 2 from converting into sulfates. This catalyst does not employ substance like alumina exhibiting solid acidity as a catalyst carrier. Further, this catalyst can be used for purifying exhaust gases from diesel engines to suppress particulates and sulfates from being emitted, and to improve conversions of hydrocarbons and-carbon monoxide.

摘要翻译： 用于净化废气的催化剂包括由钛酸钾和负载在催化剂载体上的贵金属制成的催化剂载体。 催化剂载体基本上不含氧化铝。 该催化剂即使在低温下也能以高催化活性氧化废气中的至少烃类，同时可以抑制SO2转化成硫酸盐。 该催化剂不使用表现出固体酸性的氧化铝作为催化剂载体的物质。 此外，该催化剂可用于净化来自柴油发动机的废气以抑制颗粒物和硫酸盐的排放，并提高碳氢化合物和一氧化碳的转化率。

公开(公告)号：EP0734756A3

公开(公告)日：1996-11-20

申请号：EP96105128.1

申请日：1996-03-29

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO ,  CATALER INDUSTRIAL CO., LTD.

发明人： Sato, Akemi, c/o Toyota Jidosha K.K. ,  Yamasita, Koichi, c/o Toyota Jidosha K.K. ,  Banno, Kouji, c/o K.K. Toyota Chuo Kenkyusho ,  Sugiura, Masahiro, c/o K.K. Toyota Chuo Kenkyusho ,  Kumai, Yoko, c/o K.K. Toyota Chuo Kenkyusho ,  Kasahara, Koichi, c/o Cataler Industrial Co., Ltd. ,  Aono, Norihiko, c/o Cataler Industrial Co., Ltd.

IPC分类号： B01D53/94 ,  B01J23/648

CPC分类号： B01J37/0242 ,  B01D53/944 ,  B01J23/6482 ,  F02B3/06

摘要： A catalyst for purifying exhaust gases from a diesel engine has a catalyst substrate; a catalyst support layer; at least one platinum group element loaded on the catalyst support layer; and a compound oxide of V and La and so on further loaded thereon. In another aspect, a catalyst for purifying exhaust gases from a diesel engine wherein at least one alkaline earth metal is loaded on the catalyst support layer comprising silica or the like. In still another aspect, a catalyst for purifying exhaust gases from a diesel engine wherein the catalyst support layer comprises a compound oxide comprising silica and at least one alkaline earth metal. These aspects of the present catalyst can keep the activity in oxidation and decomposition of exahust gases as well as suppress the formation of SO 3 .

公开(公告)号：EP0734756A2

公开(公告)日：1996-10-02

申请号：EP96105128.1

申请日：1996-03-29

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO ,  CATALER INDUSTRIAL CO., LTD.

发明人： Sato, Akemi, c/o Toyota Jidosha K.K. ,  Yamasita, Koichi, c/o Toyota Jidosha K.K. ,  Banno, Kouji, c/o K.K. Toyota Chuo Kenkyusho ,  Sugiura, Masahiro, c/o K.K. Toyota Chuo Kenkyusho ,  Kumai, Yoko, c/o K.K. Toyota Chuo Kenkyusho ,  Kasahara, Koichi, c/o Cataler Industrial Co., Ltd. ,  Aono, Norihiko, c/o Cataler Industrial Co., Ltd.

IPC分类号： B01D53/94 ,  B01J23/648

CPC分类号： B01J37/0242 ,  B01D53/944 ,  B01J23/6482 ,  F02B3/06

摘要： A catalyst for purifying exhaust gases from a diesel engine has a catalyst substrate; a catalyst support layer; at least one platinum group element loaded on the catalyst support layer; and a compound oxide of V and La and so on further loaded thereon. In another aspect, a catalyst for purifying exhaust gases from a diesel engine wherein at least one alkaline earth metal is loaded on the catalyst support layer comprising silica or the like. In still another aspect, a catalyst for purifying exhaust gases from a diesel engine wherein the catalyst support layer comprises a compound oxide comprising silica and at least one alkaline earth metal. These aspects of the present catalyst can keep the activity in oxidation and decomposition of exahust gases as well as suppress the formation of SO 3 .

摘要翻译： 用于净化柴油机排气的催化剂具有催化剂基质; 催化剂载体层; 至少一种铂族元素负载在催化剂载体层上; 和进一步负载在其上的V和La等的复合氧化物。 另一方面，一种用于净化柴油机排气的催化剂，其中至少一种碱土金属负载在包含二氧化硅或类似物的催化剂载体层上。 又一方面，一种用于净化柴油机排气的催化剂，其中所述催化剂载体层包含含有二氧化硅和至少一种碱土金属的复合氧化物。 本催化剂的这些方面可以保持排气中氧化和分解的活性，并抑制SO 3的形成。