公开(公告)号：EP0714693A1

公开(公告)日：1996-06-05

申请号：EP95308495.1

申请日：1995-11-27

申请人： KABUSHIKI KAISHA RIKEN

发明人： Saito, Mika c/o Kabushiki Kaisha Riken ,  Abe, Akira c/o Kabushiki Kaisha Riken ,  Yoshida, Kiyohide c/o Kabushiki Kaisha Riken ,  Sumiya, Satoshi c/o Kabushiki Kaisha Riken ,  Furuyama, Masataka c/o Kabushiki Kaisha Riken

IPC分类号： B01D53/94 ,  B01J23/68 ,  B01J23/89

CPC分类号： B01J35/0006 ,  B01D53/9418 ,  B01D2251/208 ,  B01D2251/21 ,  B01D2255/1021 ,  B01D2255/104 ,  B01D2255/2063 ,  B01D2255/20761 ,  B01D2255/20776 ,  B01D2255/9207 ,  B01J23/66

摘要： An exhaust gas cleaner comprises a first Ag catalyst, a second Ag catalyst, a transition metal catalyst selected from a Pt catalyst, a W catalyst, a W+Pt catalyst and a mixed catalyst of the Pt catalyst and the W catalyst. The second Ag catalyst and the Pt catalyst may be physically mixed together to form a mixed catalyst. Another exhaust gas cleaner comprises an Ag catalyst, a Cu catalyst and a W+Pt catalyst. The Cu catalyst and the W+Pt catalyst may be physically mixed together to form a mixed catalyst. Still another exhaust gas cleaner comprises a mixed catalyst of an Ag catalyst and a Cu catalyst. The exhaust gas cleaner may effectively remove nitrogen oxides from a wide temperature range of exhaust gases.

摘要翻译： 废气净化器包括第一Ag催化剂，第二Ag催化剂，选自Pt催化剂，W催化剂，W + Pt催化剂和Pt催化剂和W催化剂的混合催化剂的过渡金属催化剂。 第二种Ag催化剂和Pt催化剂可以物理混合在一起形成混合催化剂。 另一废气净化器包括Ag催化剂，Cu催化剂和W + Pt催化剂。 Cu催化剂和W + Pt催化剂可以物理混合在一起形成混合催化剂。 另一种排气净化器包括Ag催化剂和Cu催化剂的混合催化剂。 废气净化器可以从宽的废气温度范围内有效地去除氮氧化物。