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公开(公告)号：EP1177032B1
公开(公告)日：2004-08-04
申请号：EP00920854.7
申请日：2000-04-20
发明人： BERT, Christian , GUYON, Marc , MORAL, Najat , BIRCHEM, Thierry , FRITZ, Arno , HEDOUIN, Catherine , SEGUELONG, Thierry , BOULY, Christophe , PONTIER, Thierry , SARDA, Christian
CPC分类号： B01D53/9481 , B01D53/945 , B01D2255/2042 , B01D2255/2073 , B01J20/0207 , B01J20/0211 , B01J20/0222 , B01J20/04 , B01J20/06 , B01J20/08 , B01J20/103 , B01J20/28057 , B01J20/3078 , B01J20/3204 , B01J20/3236 , B01J23/02 , B01J23/10 , B01J23/34 , B01J37/0244 , C01G25/006 , C01P2006/12 , Y02T10/22
摘要： The invention concerns a device for purifying an internal combustion engine exhaust gases comprising an internal combustion engine capable of consuming fuel with lean air-fuel mixture ratios, means for adsorbing NOx arranged in the engine exhaust line, said means being of the type which adsorb the NOx present in the exhaust gases in the presence of excess oxygen and which release the adsorbed NOx when the oxygen concentration of the exhaust gases decreases. The invention is characterised in that the NOx adsorbing means do not contain any composition capable of acting as NOx reducing catalyst and in particular no precious metal and a three-way catalyst is installed in the exhaust line downstream of the NOx adsorbing means.
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公开(公告)号：EP1177032A1
公开(公告)日：2002-02-06
申请号：EP00920854.7
申请日：2000-04-20
发明人： BERT, Christian , GUYON, Marc , MORAL, Najat , BIRCHEM, Thierry , FRITZ, Arno , HEDOUIN, Catherine , SEGUELONG, Thierry , BOULY, Christophe , PONTIER, Thierry , SARDA, Christian
CPC分类号： B01D53/9481 , B01D53/945 , B01D2255/2042 , B01D2255/2073 , B01J20/0207 , B01J20/0211 , B01J20/0222 , B01J20/04 , B01J20/06 , B01J20/08 , B01J20/103 , B01J20/28057 , B01J20/3078 , B01J20/3204 , B01J20/3236 , B01J23/02 , B01J23/10 , B01J23/34 , B01J37/0244 , C01G25/006 , C01P2006/12 , Y02T10/22
摘要： The invention concerns a device for purifying an internal combustion engine exhaust gases comprising an internal combustion engine capable of consuming fuel with lean air-fuel mixture ratios, means for adsorbing NOx arranged in the engine exhaust line, said means being of the type which adsorb the NOx present in the exhaust gases in the presence of excess oxygen and which release the adsorbed NOx when the oxygen concentration of the exhaust gases decreases. The invention is characterised in that the NOx adsorbing means do not contain any composition capable of acting as NOx reducing catalyst and in particular no precious metal and a three-way catalyst is installed in the exhaust line downstream of the NOx adsorbing means.
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3.发明授权
公开(公告)号：EP1177034B1
公开(公告)日：2003-08-13
申请号：EP00925392.3
申请日：2000-05-04
发明人： BOULY, Christophe , PONTIER, Thierry , SARDA, Christian , BIRCHEM, Thierry , HEDOUIN, Catherine , SEGUELONG, Thierry , MORAL, Najat , GUYON, Marc , BERT, Christian
IPC分类号： B01D53/94 , B01J35/00 , B01J23/34 , B01J23/656
CPC分类号： B01D53/9422 , B01D53/9445 , B01D2255/2022 , B01D2255/2042 , B01D2255/206 , B01D2255/2073 , B01D2255/9022 , B01D2255/908 , B01J23/02 , B01J23/10 , B01J23/34 , B01J37/0244 , Y02T10/22
摘要： The invention concerns a composition for purifying exhaust gases of an internal combustion engine capable of consuming fuel with lean air-fuel ratios comprising means adsorbing the NOx present in the exhaust gases, in the presence of excess oxygen and releasing the adsorbed NOx when the oxygen concentration of the exhaust gases decreases. The invention is characterised in that the NOx adsorbing means comprise in combination: a first composition comprising a support and an active phase, the active base being based on manganese and at least another element A selected among alkalines and alkaline-earths, the manganese and element A being chemically bound; a second composition comprising a support and an active phase based on manganese and at least another element B selected among alkalines, alkaline-earths and rare earths, said second composition having or being capable of having a specific surface area of at least 80 m /g after being calcined at 800 DEG C, and furthermore, a reducing and/or three-way catalyst function is incorporated in the NOx adsorbing means.
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公开(公告)号：EP1177033B1
公开(公告)日：2006-08-23
申请号：EP00925391.5
申请日：2000-05-04
发明人： BOULY, Christophe , PONTIER, Thierry , SARDA, Christian , FRITZ, Arno , HEDOUIN, Catherine , SEGUELONG, Thierry , MORAL, Najat , GUYON, Marc , BERT, Christian
IPC分类号： B01D53/94
CPC分类号： B01D53/9422 , B01D2255/2022 , B01D2255/2027 , B01D2255/2042 , B01D2255/2061 , B01D2255/2063 , B01J23/02 , B01J23/10 , B01J23/34 , B01J37/0244
摘要： The invention concerns a composition for purifying exhaust gases of an internal engine capable of consuming fuel with lean air-fuel ratios, comprising means adsorbing NOx present in the exhaust gases, in the presence of excess oxygen and which release the adsorbed NOx when the oxygen concentration of the exhaust gases decreases. The invention is characterised in that the NOx adsorbing means comprise at least a support and at least an active phase based on manganese and that furthermore, a reducing and/or a three-way catalyst function is incorporated in the NOx adsorbing composition.
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公开(公告)号：EP1177033A1
公开(公告)日：2002-02-06
申请号：EP00925391.5
申请日：2000-05-04
申请人： RHODIA CHIMIE , RHODIA CHIMIE , RENAULT
发明人： BOULY, Christophe , PONTIER, Thierry , SARDA, Christian , FRITZ, Arno , HEDOUIN, Catherine , SEGUELONG, Thierry , MORAL, Najat , GUYON, Marc , BERT, Christian
IPC分类号： B01D53/94
CPC分类号： B01D53/9422 , B01D2255/2022 , B01D2255/2027 , B01D2255/2042 , B01D2255/2061 , B01D2255/2063 , B01J23/02 , B01J23/10 , B01J23/34 , B01J37/0244
摘要： The invention concerns a composition for purifying exhaust gases of an internal engine capable of consuming fuel with lean air-fuel ratios, comprising means adsorbing NOx present in the exhaust gases, in the presence of excess oxygen and which release the adsorbed NOx when the oxygen concentration of the exhaust gases decreases. The invention is characterised in that the NOx adsorbing means comprise at least a support and at least an active phase based on manganese and that furthermore, a reducing and/or a three-way catalyst function is incorporated in the NOx adsorbing composition.
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6.发明授权
公开(公告)号：EP1034026B1
公开(公告)日：2003-07-02
申请号：EP98955718.6
申请日：1998-11-23
申请人： RHODIA CHIMIE
CPC分类号： B01D53/9422 , B01D53/8628 , B01D2255/2027 , B01D2255/204 , B01D2255/2065 , B01D2255/2066 , B01D2255/2073 , B01D2255/407 , B01J23/34
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7.发明公开ALUMINATE DE ZINC A SURFACE SPECIFIQUE ELEVES, SON PROCEDE DE PREPARATION ET SON UTILISATION DANS LE TRAITEMENT D'AUTOMOBILE 审中-公开具有高比表面积，其生产和它的用途汽车尾气处理的铝锌
公开(公告)号：EP1098701A1
公开(公告)日：2001-05-16
申请号：EP99920906.7
申请日：1999-05-21
申请人： RHODIA CHIMIE
CPC分类号： B01D53/9418 , B01D2251/2062 , B01D2251/208 , B01D2255/2025 , B01D2255/2065 , B01D2255/20707 , B01D2255/20792 , B01D2255/2092 , B01D2255/30 , B01D2258/012 , B01J23/06 , Y02A50/2325 , Y02T10/24
摘要： The invention concerns a zinc aluminate characterised in that it has, after calcination at 800 °C for 8 hours, a specific surface area of at least 85m2/g. The invention also concerns a precursor composition of said aluminate. The method for preparing the aluminate and the composition comprises the following steps: contacting in a solvent medium a salt, a zinc sol or alkoxide and an aluminium alkoxide; hydrolyzing the resulting mixture by adding an amount of water in excess relative to the aluminium alkoxide; recuperating the formed precipitate and optionally drying it, thereby obtaining the precursor composition; if required, calcining said precipitate, thereby obtaining the aluminate. Finally, the invention concerns the use of aluminate for treating motor vehicle exhaust gases.
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8.发明公开COMPOSITION A SUPPORT A BASE D'UN OXYDE DE CERIUM, D'UN OXYDE DE ZIRCONIUM ET D'UN OXYDE DE SCANDIUM OU DE TERRE RARE ET UTILISATION POUR LE TRAITEMENT DES GAZ D'ECHAPPEMENT 有权CARRIER组合物，含有氧化铈ZIRKONIUMOXYDUND USEFÜRDIE废气处理
公开(公告)号：EP1030732A1
公开(公告)日：2000-08-30
申请号：EP98954545.4
申请日：1998-11-09
申请人： RHODIA CHIMIE
CPC分类号： B01D53/9422 , B01D2255/2042 , B01D2255/2065 , B01D2255/2066 , B01D2255/2073 , B01D2255/407 , B01J23/10 , B01J23/34 , B01J35/002
摘要： The invention concerns a composition characterised in that it comprises a support based on cerium oxide, zirconium oxide and scandium or rare earth oxide other than cerium and a supported phase based on manganese and at least another element selected among alkaline, alkaline-earth and rare earth elements. Said composition can used to trap NOx and can therefore be used in a gas treatment process for reducing nitrogen oxides, in particular exhaust gas with excess of oxygen.
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9.发明公开
公开(公告)号：EP0994749A1
公开(公告)日：2000-04-26
申请号：EP98935077.2
申请日：1998-07-01
申请人： RHODIA CHIMIE
CPC分类号： B01J21/063 , B01D53/9418 , B01D2251/21 , B01D2255/1021 , B01D2255/2063 , B01D2255/20707 , B01J21/08 , B01J23/42 , B01J35/0013 , B01J37/0211 , Y02T10/24
摘要： The invention concerns a method for treating gases to reduce nitrogen oxide emissions wherein a catalytic composition containing a catalytic phase on a support is used, characterised in that the support is based on silica and titanium oxide in an atomic proportion Ti/Ti+Si ranging between 0.1 and 15 %. The method is particularly useful for treating exhaust gases of diesel engines or of engines using a weak mixture.
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10.发明授权
公开(公告)号：EP1030732B1
公开(公告)日：2003-03-26
申请号：EP98954545.4
申请日：1998-11-09
申请人： RHODIA CHIMIE
CPC分类号： B01D53/9422 , B01D2255/2042 , B01D2255/2065 , B01D2255/2066 , B01D2255/2073 , B01D2255/407 , B01J23/10 , B01J23/34 , B01J35/002
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