专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06334986B1 Process for the selective catalytic reduction of the nitrogen oxides contained in a lean exhaust gas 有权
公开(公告)号：US06334986B1
公开(公告)日：2002-01-01
申请号：US09757581
申请日：2001-01-11
申请人： Jürgen Gieshoff , Hans Van Den Tillaart , Thomas Kreuzer , Egbert Lox , Jürgen Lang
发明人： Jürgen Gieshoff , Hans Van Den Tillaart , Thomas Kreuzer , Egbert Lox , Jürgen Lang
IPC分类号： B01D5358
摘要： The invention relates to a process for the selective catalytic reduction of the nitrogen oxides contained in a lean exhaust gas from internal combustion engines by reducing the nitrogen oxides by means of ammonia on a catalyst. The process is characterized in that, in addition to the lean exhaust gas, a rich gas stream is produced that is treated in an electrical gas discharge plasma in order to form the ammonia required for the reduction.

2. 发明授权

US6077489A Oxidation catalyst for internal combustion engines 失效
标题翻译：内燃机氧化催化剂
公开(公告)号：US6077489A
公开(公告)日：2000-06-20
申请号：US212474
申请日：1998-12-16
申请人： Harald Klein , Hans Van Den Tillaart , Egbert Lox , Thomas Kreuzer , Stephan Eckhoff
发明人： Harald Klein , Hans Van Den Tillaart , Egbert Lox , Thomas Kreuzer , Stephan Eckhoff
IPC分类号： B01D53/94 , B01J23/62 , B01J21/12 , B01J23/14 , B01J23/42
CPC分类号： B01D53/945 , B01J23/626 , Y02T10/22 , Y10S502/50
摘要： An oxidation catalyst for internal combustion engines which contains platinum on a finely divided support material and containing lead as a promoter. The catalytic activity of the oxidation catalyst can be increased greatly by promoting the catalyst with lead at a molar ratio of lead to platinum of 2:1. The light-off temperatures of the promoted catalyst are well below the corresponding temperatures for a conventional, lead-free catalyst.
摘要翻译：一种用于内燃机的氧化催化剂，其在精细分散的载体材料上含有铂并含有铅作为助催化剂。氧化催化剂的催化活性可以通过用铅以2:1的铅与铂的摩尔比促进催化剂而大大提高。促进催化剂的关闭温度远远低于常规无铅催化剂的相应温度。

3. 发明授权

US06534439B2 Catalyst for reducing nitrogen oxides in oxidizing and reducing atmospheres 失效
标题翻译：在氧化和还原气氛中还原氮氧化物的催化剂
公开(公告)号：US06534439B2
公开(公告)日：2003-03-18
申请号：US09345787
申请日：1999-07-01
申请人： Hans van den Tillaart , Jürgen Leyrer , Wolfgang Strehlau , Egbert Lox , Thomas Kreuzer , Carsten Plog , Renato Andorf , Norbert Markert , Thomas Stengel
发明人： Hans van den Tillaart , Jürgen Leyrer , Wolfgang Strehlau , Egbert Lox , Thomas Kreuzer , Carsten Plog , Renato Andorf , Norbert Markert , Thomas Stengel
IPC分类号： B01J2340
CPC分类号： B01D53/9418 , B01D2255/1028 , B01D2255/504 , B01J23/468 , B01J35/006 , Y02T10/24
摘要： A catalyst for reducing nitrogen oxides in oxidizing and reducing atmospheres which contains iridium on a support material. Silicon dioxide or a dealuminized zeolite in the acid H form with a modulus of more than 20, preferably more than 100, or mixtures thereof are used as support materials. Iridium is deposited on the external surfaces of these support materials with average particle sizes between 10 and 30 nm. The catalyst is particularly suitable for treating exhaust gases from lean-burn gasoline engines or from diesel engines.
摘要翻译：用于在氧化还原气氛中还原氮氧化物的催化剂，其在载体材料上含有铱。酸性H形式的二氧化硅或脱铝沸石的模量大于20，优选大于100，或其混合物用作支撑材料。铱沉积在这些载体材料的外表面上，平均粒径在10和30nm之间。该催化剂特别适用于处理来自稀燃汽油发动机或柴油发动机的废气。

4. 发明授权

US6001318A Process for lowering nitrogen oxide levels in combustion engine exhaust gas 失效
标题翻译：降低内燃机废气中氮氧化物含量的方法
公开(公告)号：US6001318A
公开(公告)日：1999-12-14
申请号：US996215
申请日：1997-12-22
申请人： Hans Van Den Tillaart , Jurgen Leyrer , Egbert Lox , Thomas Kreuzer , Stephan Eckhoff
发明人： Hans Van Den Tillaart , Jurgen Leyrer , Egbert Lox , Thomas Kreuzer , Stephan Eckhoff
IPC分类号： F01N3/22 , B01D53/86 , B01D53/94 , F01N3/20 , F01N3/24 , F01N3/28 , B01D47/00 , B01J8/00 , F01N3/00 , F01N3/10
CPC分类号： B01D53/9409 , B01D53/9495 , F01N2610/03
摘要： A process is disclosed for lowering nitrogen oxide levels in combustion engine exhaust gas by a reduction catalyst and by controlling the exhaust gas temperature upstream from the catalyst to a constant value, at which the catalyst exhibits maximum conversion for nitrogen oxides. It is possible to maintain maximum conversion over a wide range of engine outlet temperatures of the exhaust gas.
摘要翻译：公开了一种通过还原催化剂降低内燃机废气中的氮氧化物含量并通过将催化剂上游的废气温度控制在恒定值的方法，在该值下催化剂表现出氮氧化物的最大转化率。可以在废气的发动机出口温度范围内保持最大转换。

5. 发明授权

US07431895B2 Exhaust gas treatment unit for the selective catalytic reduction of nitrogen oxides under lean exhaust gas conditions and a process for the treatment of exhaust gases 有权
标题翻译：废气处理单元，用于在贫废气条件下选择性催化还原氮氧化物，以及废气处理方法
公开(公告)号：US07431895B2
公开(公告)日：2008-10-07
申请号：US09985954
申请日：2001-11-06
申请人： Marcus Pfeifer , Paul Spurk , Jürgen Gieshoff , Yvonne Demel , Egbert Lox , Thomas Kreuzer
发明人： Marcus Pfeifer , Paul Spurk , Jürgen Gieshoff , Yvonne Demel , Egbert Lox , Thomas Kreuzer
IPC分类号： B01D50/00
CPC分类号： F01N3/2066 , B01D53/9418 , B01D53/9422 , B01D2251/2062 , B01D2255/102 , F01N3/0814 , F01N13/009 , F01N13/0097 , F01N2240/40 , F01N2570/18 , F01N2610/02 , Y02T10/22 , Y02T10/24
摘要： An exhaust gas treatment unit for the selective catalytic reduction of nitrogen oxides under lean exhaust gas conditions which contains at least one catalyst with catalytically active components for selective catalytic reduction (SCR components). The exhaust gas treatment unit is characterised in that the catalyst also contains, in addition to SCR components, at least one storage component for nitrogen oxides (NOx components).
摘要翻译：一种用于在贫废气条件下选择性催化还原氮氧化物的废气处理单元，其包含至少一种催化活性组分用于选择性催化还原（SCR组分）的催化剂。排气处理单元的特征在于，除了SCR组分之外，催化剂还含有至少一种用于氮氧化物（NOx组分）的储存组分。

6. 发明授权

US06739176B2 Process for checking the operability of an exhaust gas purification catalyst 有权
标题翻译：用于检查废气净化催化剂的可操作性的方法
公开(公告)号：US06739176B2
公开(公告)日：2004-05-25
申请号：US09809355
申请日：2001-03-16
申请人： Ulrich Neuhausen , Harald Klein , Egbert Lox , Jürgen Gieshoff , Thomas Kreuzer
发明人： Ulrich Neuhausen , Harald Klein , Egbert Lox , Jürgen Gieshoff , Thomas Kreuzer
IPC分类号： G01M1500
CPC分类号： F01N11/002 , F01N11/00 , F01N11/005 , F01N2550/02 , F02B3/06 , Y02T10/47
摘要： A process for checking the operability of an exhaust gas purification catalyst for diesel engines, which has a light-off temperature and a degree of conversion rCO for carbon monoxide (CO), by direct measurement of the carbon monoxide concentration in combination with a temperature measurement. To evaluate the remaining catalytic activity of the catalyst the difference &Dgr;T between the current catalyst exit temperature TE of the exhaust gas and the light-off temperature TCO,50%,fresh of the fresh catalyst for carbon monoxide stored as a function of the speed and load &Dgr;T=TE−TCO,50%,fresh is determined and the degree of conversion rCO for carbon monoxide is ascertained.
摘要翻译：通过一氧化碳浓度的直接测量与温度测量结合来检查具有一氧化碳（CO）的起燃温度和转化度rCO的用于柴油机的排气净化催化剂的可操作性的方法。为了评估催化剂的剩余催化活性，废气的当前催化剂出口温度TE与起燃温度TCO之间的差值ΔTT为50％，一氧化碳新鲜催化剂的新鲜作为速度存储，确定负载，并确定一氧化碳的转化程度rCO。

7. 发明授权

US06686075B2 Process for producing electrical energy with the aid of a fuel cell 失效
标题翻译：借助燃料电池生产电能的方法
公开(公告)号：US06686075B2
公开(公告)日：2004-02-03
申请号：US09859680
申请日：2001-05-18
申请人： Jürgen Gieshoff , Helga Vollmer , Barbara Diehl , Egbert Lox , Thomas Kreuzer
发明人： Jürgen Gieshoff , Helga Vollmer , Barbara Diehl , Egbert Lox , Thomas Kreuzer
IPC分类号： H01M816
CPC分类号： H01M8/0662 , H01M8/1007
摘要： A process for producing electrical energy with the aid of a fuel cell, which includes the steps of reforming an organic fuel, removing carbon monoxide from the reformate, and reacting the hydrogen present in the reformate with oxygen, in a fuel cell, to thereby produce electrical energy. The carbon monoxide is removed from the reformate by treating the reformate in a bioreactor which contains a thermophilic microorganism strain which metabolizes carbon monoxide, under anaerobic conditions, to give carbon dioxide and hydrogen.
摘要翻译：一种借助于燃料电池生产电能的方法，其包括重整有机燃料，从重整产物中除去一氧化碳，并使燃料电池中存在于重整产品中的氢与氧气反应的步骤，从而产生电能。通过在含有在厌氧条件下代谢一氧化碳的嗜热微生物菌株的生物反应器中处理重整产物，从重整产物中除去一氧化碳，得到二氧化碳和氢气。

8. 发明授权

US07313911B2 Method of removing nitrogen oxides from the exhaust gas of a lean-burn internal combustion engine and exhaust-gas purification system therefor 有权
标题翻译：从稀燃内燃机的废气中除去氮氧化物的方法及其废气净化系统
公开(公告)号：US07313911B2
公开(公告)日：2008-01-01
申请号：US10547249
申请日：2004-02-26
申请人： Markus Pfeifer , Barry Van Setten , Paul Spurk , Yvonne Demel , Tobias Kuhl , Jürgen Gieshoff , Egbert Lox , Thomas Kreuzer
发明人： Markus Pfeifer , Barry Van Setten , Paul Spurk , Yvonne Demel , Tobias Kuhl , Jürgen Gieshoff , Egbert Lox , Thomas Kreuzer
IPC分类号： F01N3/00
CPC分类号： F01N3/2066 , B01D53/9431 , B01D53/9495 , F01N13/009 , F01N13/0093 , F01N2240/40 , F01N2610/02 , Y02T10/24
摘要： The present invention relates to a method of removing nitrogen oxides from the exhaust gas of a lean-burn internal combustion engine by selective catalytic reduction (SCR) using ammonia. The exhaust gas is routed first over a platinum-containing pre-catalyst and then over an SCR catalyst. The ammonia needed for the selective catalytic reduction is added to the exhaust gas upstream of the pre-catalyst at an exhaust-gas temperature below 250° C., while it is supplied to the exhaust gas between the pre-catalyst and the SCR catalyst at an exhaust gas temperature above 150° C. By adopting this procedure, a very large temperature range for the selective catalytic reduction with high nitrogen conversion rates is obtained.
摘要翻译：本发明涉及通过使用氨的选择性催化还原（SCR）从贫燃内燃机的废气中除去氮氧化物的方法。排气首先通过含铂预催化剂然后超过SCR催化剂。在低于250℃的排气温度下，将催化剂选择性还原所需的氨加入到预催化剂上游的废气中，同时向预催化剂和SCR催化剂之间的排气供应废气温度高于150℃。通过采用该方法，获得了具有高氮转化率的选择性催化还原的非常大的温度范围。

9. 发明授权

US06238525B1 Process for reducing the nitrogen oxides content of exhaust gas from an internal combustion engine 失效
标题翻译：降低来自内燃机的废气的氮氧化物含量的方法
公开(公告)号：US06238525B1
公开(公告)日：2001-05-29
申请号：US09299630
申请日：1999-04-27
申请人： Egbert Lox , Jürgen Gieshoff , Wolfgang Strehlau , Thomas Kreuzer
发明人： Egbert Lox , Jürgen Gieshoff , Wolfgang Strehlau , Thomas Kreuzer
IPC分类号： C01B2100
CPC分类号： F01N3/0842 , B01D53/32 , B01D53/92 , B01D53/9431 , F01N3/0807 , F01N3/0892 , F01N2240/28 , F02B1/04
摘要： A process for reducing the nitrogen oxides content of the exhaust gas from an internal combustion engine includes treating the exhaust gas in an electric gas discharge such that at least one of nitrogen dioxide or nitric acid are formed from nitrogen oxides in the exhaust gas; storing the nitrogen dioxides and/or the nitric acid in the form of nitrates on a nitrogen oxides storage material during phases when the engine operates with a greater than a stoichiometric air/fuel ratio (i.e., the storage phase); decomposing the nitrates to give nitrogen oxides during brief phases when the engine operates with a less than the stoichiometric air/fuel ratio (i.e., the desorption phase); and reducing the nitrogen oxides which are released from the storage material to nitrogen. The nitrogen oxides storage material may be located in an electric gas discharge zone, and the exhaust gas may be passed through the discharge and then over the storage material.
摘要翻译：用于降低来自内燃机的废气的氮氧化物含量的方法包括以排气中的氮氧化物形成至少一种二氧化氮或硝酸的电气放电来处理排气，当发动机以大于化学计量的空气/燃料比（即储存阶段）运转时，在氮氧化物储存材料中将氮氧化物和/或硝酸以硝酸盐的形式储存在相中。当发动机以小于化学计量的空气/燃料比（即，解吸阶段）运行时，在短时间内分解硝酸盐以产生氮氧化物; 并将从储存材料释放的氮氧化物还原成氮气。氮氧化物存储材料可以位于电气放电区域中，并且排气可以通过排出物，然后通过存储材料。

10. 发明授权

US08136349B2 Exhaust-gas purification system with particulate filter and method of operation thereof with improved regeneration of the particulate filter 有权
标题翻译：具有微粒过滤器的废气净化系统及其操作方法，改善微粒过滤器的再生
公开(公告)号：US08136349B2
公开(公告)日：2012-03-20
申请号：US10556643
申请日：2004-05-12
申请人： Jürgen Gieshoff , Martin Votsmeier , Frank-Walter Schütze , Marcus Pfeifer , Egbert Lox , Thomas Kreuzer
发明人： Jürgen Gieshoff , Martin Votsmeier , Frank-Walter Schütze , Marcus Pfeifer , Egbert Lox , Thomas Kreuzer
IPC分类号： F01N3/00
CPC分类号： B01D53/9454 , F01N3/0222 , F01N3/023 , F01N3/035 , F01N3/0814 , F01N3/0835 , F01N3/20 , F01N2250/02 , F01N2370/24 , F01N2430/00 , F01N2430/06 , F01N2430/08 , F01N2430/085 , F02D41/0245 , F02D41/029 , Y02A50/2324 , Y02T10/22 , Y02T10/26
摘要： The present invention describes an exhaust-gas purification system for an internal combustion engine made of an oxidation catalyst arranged close to the engine, a subsequent hydrocarbon adsorber and a particulate filter arranged downstream thereof and provided with another oxidation catalyst. The oxidation catalyst ensures that emission limits with respect to carbon monoxide and hydrocarbons are satisfied in normal driving mode. During operating states with exhaust-gas temperatures below about 200° C., the oxidation catalyst can no longer oxidize carbon monoxide and hydrocarbons. Instead, the hydrocarbons are adsorbed by the hydrocarbon adsorber during these operating phases. In order to initiate the periodical regeneration of the particulate filter, the exhaustgas temperature of the internal combustion engine is raised by engine modifications. The increased exhaust-gas temperature leads to desorption of the previously stored hydrocarbons, which are then burned at the oxidation catalyst of the particulate filter, thereby supporting the regeneration of the particulate filter.
摘要翻译：本发明描述了一种由靠近发动机设置的氧化催化剂制成的内燃机排气净化系统，后续的烃吸附器和布置在其下游并具有另一氧化催化剂的颗粒过滤器。氧化催化剂确保在正常驾驶模式下满足一氧化碳和碳氢化合物的排放限制。在废气温度低于约200℃的运行状态下，氧化催化剂不再能够氧化一氧化碳和碳氢化合物。相反，烃在这些操作阶段被烃吸附器吸附。为了开始颗粒过滤器的定期再生，通过发动机改造来提高内燃机的废气温度。增加的废气温度导致先前储存的烃的解吸，然后在颗粒过滤器的氧化催化剂上燃烧，从而支持颗粒过滤器的再生。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式