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1. 发明专利

JP2003062464A Exhaust gas cleaning catalyst for internal combustion engine, exhaust gas cleaning apparatus, and automobile 审中-公开
标题翻译：用于内燃机的排气净化催化剂，排气净化装置和汽车
公开(公告)号：JP2003062464A
公开(公告)日：2003-03-04
申请号：JP2001258100
申请日：2001-08-28
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： HIRATSUKA TOSHIFUMI , KURODA OSAMU , SHINOZUKA NORIHIRO , DOI RYOTA , KITAHARA YUICHI , INOUE TAKESHI , OKUDE KOJIRO , IIZUKA HIDEHIRO , YAMASHITA HISAO , KANAE MASAHITO
IPC分类号： F01N3/28 , B01D53/94 , B01J23/58
CPC分类号： Y02A50/2322
摘要： PROBLEM TO BE SOLVED: To keep a high performance of cleaning NOx, etc., by preventing the exposed area of a noble metal from decreasing due to the migration of an NOx catching component upon exposure to high temperature in a lean NOx catalyst. SOLUTION: The lean NOx catalyst is divided into an NOx catch (alkali) layer 1 and an NOx reaction (noble metal) layer 3, and an NOx catch component migration inhibiting layer 2 is provided between the NOx catch layer and the NOx reaction layer. Thus, the thermal migration of the NOx catch component can be prevented, so that a high cleaning performance can be maintained.
摘要翻译：要解决的问题：为了保持高性能的清洁NOx等，通过防止贵金属的暴露面积由于NOx吸收组分在稀薄NOx催化剂中暴露于高温时的迁移而降低。解决方案：将稀NOx催化剂分为NOx捕集（碱）层1和NOx反应（贵金属）层3，NOx捕获组分迁移抑制层2设置在NOx捕获层和NOx反应层之间。因此，可以防止NOx捕集部件的热迁移，从而可以保持高清洗性能。

2. 发明专利

JP2002361083A EXHAUST GAS CLEANING CATALYST FOR INTERNAL COMBUSTION ENGINE, METHOD OF PRODUCING THE SAME AND CLAENING APPARATUS 失效
公开(公告)号：JP2002361083A
公开(公告)日：2002-12-17
申请号：JP2001173464
申请日：2001-06-08
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： SHINOZUKA NORIHIRO , KITAHARA YUICHI , KURODA OSAMU , INOUE TAKESHI , DOI RYOTA , HIRATSUKA TOSHIFUMI , OKUDE KOJIRO , IIZUKA HIDEHIRO , YAMASHITA HISAO , KANAE MASAHITO
IPC分类号： F01N3/10 , B01D53/94 , B01J21/16 , B01J37/02 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide a catalyst in which the migration of catalytically active components is suppressed. SOLUTION: An exhaust gas cleaning apparatus is constituted of a cordierite honeycomb and a carrier layer which is obtained by coating a slurry added with activated carbon on the honeycomb mentioned above, drying and firing so as to form fine cavities (physical barrier) and supporting the catalytically active components. A method of producing the catalyst comprises adding activated carbon into an alumina slurry comprising γ-alumina, nitric acid, an alumina precursor, and purified water, then coating the slurry added with activated carbon on the cordierite honeycomb, drying and firing the coated layer, further impregnating a solution containing NOx-trapping components including Na and K as main components, firing, further impregnating a noble metal solution, e.g. a dinitrodiamine-Pt solution, a dinitrodiamine-Pd solution, or a rhodium nitrate solution and finally firing.

3. 发明专利

JP2013198868A Carbon dioxide recovery system 审中-公开
标题翻译：二氧化碳回收系统
公开(公告)号：JP2013198868A
公开(公告)日：2013-10-03
申请号：JP2012068608
申请日：2012-03-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO DAIKI , YOSHIKAWA KOHEI , KANAE MASAHITO , SUGANO SHUICHI
IPC分类号： B01D53/04 , B01J20/04 , B01J20/06 , B01J20/08 , B01J20/10 , B01J20/12 , B01J20/18 , B01J20/20 , B01J20/22 , B01J20/34 , C01B32/50
CPC分类号： B01D53/0407 , B01D53/02 , B01D53/04 , B01D53/0462 , B01D53/62 , B01D53/82 , B01D2251/30 , B01D2251/40 , B01D2251/602 , B01D2253/102 , B01D2253/106 , B01D2253/108 , B01D2253/20 , B01D2253/204 , B01D2255/206 , B01D2255/2061 , B01D2255/20715 , B01D2257/504 , B01D2259/402 , B01D2259/4146 , B01D2259/4148 , B01J20/041 , B01J20/06 , B01J20/08 , B01J20/103 , B01J20/18 , B01J20/20 , B01J20/226 , B01J20/3408 , B01J20/3425 , B01J20/3433 , B01J20/3483 , Y02A50/2342 , Y02C10/04 , Y02C10/08
摘要： PROBLEM TO BE SOLVED: To suppress the reduction of CO2 trapping amount by temperature rise in an absorption tower by the heat of CO2 trapping reaction in the CO2 absorption tower storing a CO2 trapping agent.SOLUTION: In a carbon dioxide recovery system to recover CO2 from a CO2 containing gas, two or more different kinds of CO2 trapping agents are installed in an absorption tower.
摘要翻译：要解决的问题：通过CO 2捕集反应在储存二氧化碳捕集剂的二氧化碳吸收塔中吸收塔中的温度升高来抑制吸收塔温度升高的二氧化碳捕获量的减少。解决方案：在二氧化碳回收系统中回收二氧化碳在吸收塔中安装有二氧化碳气体，两种以上不同种类的二氧化碳捕集剂。

4. 发明专利

JP2012144393A Carbon dioxide recovery system 有权
标题翻译：二氧化碳回收系统
公开(公告)号：JP2012144393A
公开(公告)日：2012-08-02
申请号：JP2011003532
申请日：2011-01-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO DAIKI , KANAE MASAHITO , SUGANO SHUICHI , YOSHIKAWA KOHEI
IPC分类号： C01B32/50 , B01D53/04 , B01D53/62
CPC分类号： Y02A50/2342 , Y02C10/04 , Y02C10/08 , Y02P20/152
摘要： PROBLEM TO BE SOLVED: To provide a carbon dioxide recovery system whose recovery efficiency is improved by restraining lowering of capturing amount of carbon dioxide caused by an increase in the temperature of a capturing material or a container including the capturing material, when a solid carbon dioxide capturing material is used.SOLUTION: In the carbon dioxide recovery system for capturing and separating carbon dioxide from a carbon dioxide-containing gas containing carbon dioxide by using a solid carbon dioxide capturing material, a container for housing the solid capturing material, and a cooling pipe serving as a first cooling means, through which a cooling medium for cooling the capturing material flows down, are arranged at the inside of a wall member forming the container. Thereby, the rise in the temperature of the capturing material housed in the container is restrained by allowing the cooling medium to flow through the cooling pile.
摘要翻译：要解决的问题：提供一种二氧化碳回收系统，其回收效率通过抑制由捕获材料或包括捕获材料的容器的温度升高而引起的二氧化碳捕获量的降低而得到改善，当使用固体二氧化碳捕获材料。解决方案：在通过使用固体二氧化碳捕集材料捕获和分离含二氧化碳的含二氧化碳的二氧化碳的二氧化碳回收系统中，用于容纳固体捕获材料的容器和用于作为用于冷却捕获材料的冷却介质流过的第一冷却装置布置在形成容器的壁构件的内部。因此，容纳在容器内的捕集材料的温度上升通过使冷却介质流过冷却堆而被抑制。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2007222833A Sulfur-absorbing material and exhaust-gas cleaning apparatus using the same 审中-公开
标题翻译：使用硫磺吸收材料和排气清洁装置
公开(公告)号：JP2007222833A
公开(公告)日：2007-09-06
申请号：JP2006049476
申请日：2006-02-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MUKAIDE MASAAKI , IIZUKA HIDEHIRO , NAGAYAMA TOSHIAKI , KANAE MASAHITO , WATANABE HIROKO
IPC分类号： B01D53/94 , B01D53/86 , B01J20/04 , F01N3/08 , F01N3/10 , F01N3/20 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an exhaust-gas cleaning apparatus free from sulfur poisoning of a catalyst for removing nitrogen oxides in an exhaust-gas cleaning system of a diesel engine and the like, to solve the problem that a special control system is required for reactivation of the catalyst for removing nitrogen oxides poisoned by sulfur or that fuel consumption is increased in reactivation. SOLUTION: A sulfur-absorbing material including a zeolite carrier is installed at the upstream side of the catalyst for removing nitrogen oxides in an exhaust-gas flow. The catalyst for removing nitrogen oxides is prevented from poisoning by practically preventing the absorbed sulfur from escaping under normal conditions of an internal combustion engine. The performance of the sulfur-absorbing material can be improved by combining with an oxidation catalyst. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种排气净化装置，其不含有用于除去柴油发动机等的排气净化系统中的氮氧化物的催化剂的硫中毒，为了解决特殊控制需要用于催化剂再活化以除去由硫中毒的氮氧化物或者再活化中燃料消耗增加的系统。解决方案：包含沸石载体的吸硫材料安装在催化剂的上游侧，用于排出废气流中的氮氧化物。通过实际上防止吸收的硫在内燃机的正常条件下逸出，可以防止除去氮氧化物的催化剂中毒。可以通过与氧化催化剂结合来改善硫磺吸收材料的性能。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2004100659A Exhaust emission control device and exhaust emission purifying method for diesel engine 有权
公开(公告)号：JP2004100659A
公开(公告)日：2004-04-02
申请号：JP2002267534
申请日：2002-09-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IIZUKA HIDEHIRO , KAMIKAWA MASAYUKI , KANAE MASAHITO , OKUDE KOJIRO , HIGASHIYAMA KAZUHISA , KITAHARA YUICHI , KURODA OSAMU
IPC分类号： F01N3/02 , F01N3/08 , F01N3/24 , F01N3/28 , F01N3/36 , F02D41/38
摘要： PROBLEM TO BE SOLVED: To purify NOx included in diesel engine exhaust gas without providing a DPF to the upstream side of an exhaust gas purifying catalyst. SOLUTION: In this exhaust emission control device provided with the exhaust gas purifying catalyst in the exhaust channel of the diesel engine, an exhaust gas rectifying construction for branching exhaust gas into two or more in relation to the horizontal axial line of the exhaust channel is arranged on an exhaust upstream side rather than the exhaust gas purifying catalyst. An exhaust gas flow led to flow into the exhaust gas purifying catalyst is previously rectified in a laminar flow state by the exhaust gas rectifying construction, thereby collision frequency of fine particulates with the catalyst wall of the exhaust gas purifying catalyst is reduced, and adhesion of the particulates to the exhaust gas purifying catalyst is suppressed. Thereby, the performance deterioration of the exhaust gas purifying catalyst is suppressed. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2003144926A CATALYST FOR CLEANING EXHAUST GAS OF INTERNAL COMBUSTION ENGINE, EXHAUST GAS CLEANING METHOD AND EXHAUST GAS CLEANING APPARATUS 审中-公开
公开(公告)号：JP2003144926A
公开(公告)日：2003-05-20
申请号：JP2001353619
申请日：2001-11-19
申请人： HITACHI LTD
发明人： KANAE MASAHITO , OKUDE KOJIRO , IIZUKA HIDEHIRO , YAMASHITA HISAO , KITAHARA YUICHI , KURODA OSAMU
IPC分类号： F01N3/08 , B01D53/86 , B01D53/94 , B01J23/656 , B01J27/187 , B01J37/02 , F01N3/10 , F01N3/20 , F01N3/28 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas cleaning catalyst corresponding to lean burning having high NOx cleaning capacity and high heat resistance, and an exhaust gas cleaning method. SOLUTION: The catalyst for cleaning the exhaust gas of an internal combustion engine contains a porous carrier and a catalytically active component supported on the porous carrier and the catalytically active component contains at least one kind of a noble metal selected from Rh, Pt and Pd, Li, K and Mn, and the noble metal, Li, K and Mn are contained in a form of a metal or an oxide. Further, Li is contained in a form of a compound oxide with other element or a compound oxide with the porous carrier.

8. 发明专利

JP2001132432A EXHAUST GAS PURIFYING METHOD, AND EXHAUST GAS PURIFYING DEVICE 失效
公开(公告)号：JP2001132432A
公开(公告)日：2001-05-15
申请号：JP31426999
申请日：1999-11-04
申请人： HITACHI LTD
发明人： IIZUKA HIDEHIRO , OKUDE KOJIRO , KANAE MASAHITO , NAGAYAMA KOUSEI , YAMASHITA HISAO , KURODA OSAMU , KITAHARA YUICHI
IPC分类号： F02D43/00 , F01N3/08 , F01N3/24 , F01N3/28 , F02D41/02 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To provide a method and device for purifying exhaust gas at high efficiency. SOLUTION: In this method and device for purifying exhaust gas from an internal combustion engine, a cylinder which is actuated in a stoichiometric air-fuel ratio or fuel rich condition, and a cylinder in which the stoichiometric air-fuel ratio or fuel rich condition and lean burn are alternately conducted are provided, thereby NOx in lean burn exhaust gas is eliminated by ammonia denitration and NOx arresting.

9. 发明专利

JP2000300962A METHOD, APPARATUS AND CATALYST FOR PURIFYING EXHAUST GAS OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000300962A
公开(公告)日：2000-10-31
申请号：JP11455299
申请日：1999-04-22
申请人： HITACHI LTD
发明人： IIZUKA HIDEHIRO , OKUDE KOJIRO , KANAE MASAHITO , YAMASHITA HISAO , DOI RYOTA , KURODA OSAMU , KITAHARA YUICHI
IPC分类号： B01D53/94 , B01J23/54 , B01J23/58 , B01J23/62 , B01J23/648 , B01J23/652 , B01J23/656 , F01N3/08 , F01N3/24 , F01N3/28 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To improve the NOx purifying performance in an oxidizing atmosphere of an exhaust gas by a method wherein as an exhaust gas purifying catalyst, a catalyst for catching nitrogen oxides as a monomolecular layer on the catalyst surface is used, and the exhaust gas is purified. SOLUTION: A fuel-air mixture of intake air and a fuel is prepared in a direct injection engine 92, the fuel-air mixture is burnt at the top dead center of a piston, and a power is obtained. Further an ECU 25 controls an injector 5 or the like based on various detected signals, and a specific control program group. Further, for an exhaust combustion gas, an exhaust gas purifying catalyst 13 is provided to an exhaust gas system to be introduced. In this case as the exhaust gas purifying catalyst 18, a Langmuir type catalyst wherein a NOx- catching material for catching by forming a NOx monomolecualr layer on the surface in an oxidizing atmosphere is provided, and an adsorbate of Langmuir type, for example, of a monomolecular layer, is used. Then, as the NOx-catching material, an alkali metal or an alkaline earth metal is employed. Thereby, structural change of the NOx-catching material is hindered, and the durability is improved.

10. 发明专利

JP2000176249A PURIFYING DEVICE OF EXHAUST GAS FROM INTERNAL COMBUSTION ENGINE, PURIFYING METHOD OF EXHAUST GAS, AND PURIFYING CATALYST OF EXHAUST GAS 失效
公开(公告)号：JP2000176249A
公开(公告)日：2000-06-27
申请号：JP35227298
申请日：1998-12-11
申请人： HITACHI LTD
发明人： KANAE MASAHITO , OKUDE KOJIRO , IIZUKA HIDEHIRO , OGAWA TOSHIO , NAGAYAMA KOUSEI , YAMASHITA HISAO , KITAHARA YUICHI , KURODA OSAMU
IPC分类号： B01D53/94 , B01J21/06 , B01J23/02 , B01J23/32 , B01J23/40 , B01J23/68 , B01J23/72 , B01J23/89 , B01J37/02
摘要： PROBLEM TO BE SOLVED: To highly efficiently purify nitrogen oxides included in the exhaust gas from an internal combustion engine on which a lean-burn engine is mounted. SOLUTION: In the purifying device and the purifying method of exhaust gas to purify nitrogen oxides in a combustion exhaust gas from an internal combustion engine with a reducing gas such as carbon monoxide and hydrocarbons included in the exhaust gas in the presence of a catalyst, the catalyst used has all of Rh, Pt and Pd, at least one kind selected from alkali metals and alkaline earth metals, and Mn or its compds. deposited on a porous carrier.

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