子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Catalytic filter having a soot catalyst and an SCR catalyst | US15279511 | 2016-09-29 | US09849421B2 | 2017-12-26 | Guy Richard Chandler; Paul Richard Phillips |
| A catalytic filter is provided having a mixture of an SCR catalyst and soot oxidation catalyst where the soot oxidation catalyst is a copper doped ceria, iron doped ceria or manganese doped ceria. The mixture of an SCR catalyst and soot oxidation catalyst provides for a lowering of the peak oxidation temperature for soot removal from the filter. The use of the filter allows for improved soot combustion and reduces the susceptibility of an SCR catalyst contained on a filter to deterioration. The soot oxidation catalyst also improves the resistance of the SCR catalyst to poisoning and subsequent deterioration of SCR performance. | ||||||
| 162 | NOx ADSORBER CATALYST | US15618625 | 2017-06-09 | US20170356317A1 | 2017-12-14 | Andrew ARMITAGE; Desiree DURAN MARTIN; Rebecca MAKSYMOWICZ; Paul James MILLINGTON; Paul Richard PHILLIPS; Raj Rao RAJARAM; Stuart David REID; Daniel SWALLOW |
| A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst comprises a first layer consisting essentially of a support material, one or more platinum group metals disposed on the support material, and a NOx storage material. | ||||||
| 163 | APPLICATION OF SYNERGIZED-PGM WITH ULTRA-LOW PGM LOADINGS AS UNDERFLOOR THREE-WAY CATALYSTS FOR INTERNAL COMBUSTION ENGINES | US15586823 | 2017-05-04 | US20170328249A1 | 2017-11-16 | Zahra Nazarpoor; Stephen J. Golden; Maxime Launois |
| Synergized platinum group metals (SPGM) with ultra-low PGM loadings employed as underfloor (UF) three-way catalyst (TWC) systems with varied material compositions and configurations are disclosed. SPGM UF catalysts in which ZPGM compositions of binary and ternary spinel structures supported onto support oxides are coupled with commercialized PGM close-coupled (CC) catalysts and tested under Federal Test Procedure FTP-75 within TGDI and PI engines. The performance of the TWC systems including commercialized PGM CC and SPGM UF (with ultra-low PGM loadings) catalysts is compared to the performance of commercialized PGM CC and PGM UF catalysts. The disclosed TWC systems indicate that SPGM UF TWC catalytic performance is comparable or even exceeds high PGM-based conventional TWC catalysts, with reduced tailpipe emissions. | ||||||
| 164 | ENGINE EXHAUST SYSTEM | US15144871 | 2016-05-03 | US20170321590A1 | 2017-11-09 | Luciano Nunziato Di Perna; Raffaello Ardanese; Michael J. Paratore, JR.; Rahul Mital; Jianwen Li |
| An engine exhaust system includes an exhaust pipe assembly having an engine exhaust system inlet configured to receive engine exhaust and an engine exhaust system outlet. The system includes a first selective catalytic reduction (SCR) catalyst device positioned downstream in exhaust flow from the engine exhaust system inlet. The first SCR catalyst device includes a substrate with a metallic catalyst coated on the substrate. An electric heater is configured to heat the metallic catalyst. A second SCR catalyst device is positioned downstream in engine exhaust flow from the first SCR catalyst device and upstream of the engine exhaust system outlet. The first SCR catalyst device and the exhaust pipe assembly define an empty chamber between the substrate and the second SCR catalyst device. Engine exhaust flows directly from the substrate to the second SCR catalyst device through the empty chamber. | ||||||
| 165 | Supported catalyst particles for oxidizing carbon monoxide | US15483519 | 2017-04-10 | US09801410B2 | 2017-10-31 | Donald Miser; Diane Gee |
| A method for oxidizing carbon monoxide to carbon dioxide is provided which utilizes specific supported catalyst particles. The supported catalyst comprises catalyst particles that are supported on particles of an electrically conductive support selected from the group consisting of graphitic carbon and a partially reduced oxide of a transition metal of the Magnéli phase selected from the group consisting of titanium, vanadium, zirconium, niobium, molybdenum, and mixtures thereof. | ||||||
| 166 | Exhaust gas purification catalyst and method for producing the same | US15087532 | 2016-03-31 | US09795945B2 | 2017-10-24 | Shogo Shirakawa; Yui Kamada; Tatsuya Miyazaki |
| An object of the present invention is to provide an exhaust gas purification catalyst for purifying exhaust gas, in particular, fine composite-metal particles contained therein, and a method for producing the same; the exhaust gas purification catalyst according to the present invention includes fine composite-metal particles containing Rh and Pd, wherein, when the fine composite-metal particles in the exhaust gas purification catalyst are analyzed by STEM-EDX, the average ratio of the amount of Pd with respect to the total amount of Rh and Pd in the fine composite-metal particles is 1.7 atomic % or more and 24.8 atomic % or less. | ||||||
| 167 | EXHAUST GAS-PURIFYING CATALYST | US15482961 | 2017-04-10 | US20170297004A1 | 2017-10-19 | Sho Hoshino; Akimasa Hirai; Kenichi Taki; Satoshi Matsueda; Yuji Yabuzaki |
| An exhaust gas-purifying catalyst of the present invention comprises a substrate, and one or more catalytic layers provided on the substrate, wherein at least one of the catalytic layers (i) contains a precious metal, alumina, and an acidic oxide element, (ii) has a correlation coefficient ρAl,AE of 0.70 or more, and (iii) has a correlation coefficient ρPM,AE of 0.70 or more. | ||||||
| 168 | CATALYST SYSTEM FOR REDUCING NITROGEN OXIDES | US15328658 | 2015-08-12 | US20170218809A1 | 2017-08-03 | Ruediger HOYER; Thomas UTSCHIG; Michael SCHIFFER; Michael SEYLER; Frank-Walter SCHUETZE |
| The invention relates to a catalyst system for reducing nitrogen oxides, which comprises a nitrogen oxide storage catalyst and an SCR catalyst, wherein the nitrogen oxide storage catalyst consists of at least two catalytically active washcoat layers on a supporting body, wherein a lower washcoat layer A contains cerium oxide, an alkaline earth compound and/or alkali compound, as well as platinum and palladium, and an upper washcoat layer B, which is arranged over the washcoat layer A, contains cerium oxide, platinum and palladium, and no alkali compound and no alkaline earth compound. The invention also relates to a method for converting NOx in exhaust gases of motor vehicles that are operated by means of engines that are operated in a lean manner. | ||||||
| 169 | DIESEL OXIDATION CATALYST AND EXHAUST SYSTEM | US15492238 | 2017-04-20 | US20170216770A1 | 2017-08-03 | Andrew Francis CHIFFEY; John Benjamin GOODWIN; James LEELAND; Francois MOREAU; Stuart David REID; Daniel SWALLOW |
| An oxidation catalyst for treating an exhaust gas from a diesel engine, which oxidation catalyst comprises: a first washcoat region comprising a first platinum group metal (PGM), a first support material and a NOx storage component; a second washcoat region comprising platinum (Pt), manganese (Mn) and a second support material; and a substrate having an inlet end and an outlet end. | ||||||
| 170 | SYSTEMS AND METHODS FOR REDUCING SECONDARY EMISSIONS FROM CATALYST COMPONENTS | US15462260 | 2017-03-17 | US20170191921A1 | 2017-07-06 | Aleksey Yezerets; Z. Gerald Liu; Krishna Kamasamudram; Neal W. Currier |
| System and methods for reducing secondary emissions in an exhaust stream from an internal combustion engine are disclosed. The systems and methods include a filtration device positioned downstream from an SCR catalyst of an aftertreatment system disposed in the exhaust system. The filtration device can also be used for particulate filter diagnostics and for treatment of ammonia slip. | ||||||
| 171 | Method for oxidizing carbon monoxide | US14875146 | 2015-10-05 | US09669357B2 | 2017-06-06 | Donald Miser; Diane Gee |
| A method for oxidizing carbon monoxide to carbon dioxide is provided which utilizes specific supported catalyst particles. The supported catalyst comprises catalyst particles that are supported on particles of an electrically conductive support selected from the group consisting of graphitic carbon and a partially reduced oxide of a transition metal of the Magnéli phase selected from the group consisting of titanium, vanadium, zirconium, niobium, molybdenum, and mixtures thereof. | ||||||
| 172 | INTEGRATED SENSOR-CATALYST | US14955653 | 2015-12-01 | US20170152786A1 | 2017-06-01 | Luciano Nunziato Di Perna; Jianwen Li; Charles E. Dean; Rahul Mital; David B. Brown |
| An integrated sensor-catalyst is disclosed for an after-treatment (AT) system used to filter an exhaust gas flow emitted by an internal combustion engine. The integrated sensor-catalyst includes a sensor element configured to detect a parameter of the exhaust gas flow. The integrated sensor-catalyst also includes a micro-catalyst element configured to filter a pollutant from the exhaust gas flow. Additionally, the integrated sensor-catalyst includes a housing configured to hold the sensor element and the micro-catalyst element and fix the micro-catalyst element relative to the sensor element such that the micro-catalyst element is arranged and maintained in the exhaust gas flow upstream of the sensor element. A vehicle including such an AT system with the integrated sensor-catalyst is also disclosed. | ||||||
| 173 | EXHAUST SYSTEM | US15291143 | 2016-10-12 | US20170107878A1 | 2017-04-20 | Gavin Michael BROWN; Andrew Francis CHIFFEY; Paul Richard PHILLIPS; Jonathan RADCLIFFE |
| An exhaust system for an internal combustion engine, the exhaust system comprising, a lean NOx trap, a NOx storage and reduction zone on a wall flow monolithic substrate having a pre-coated porosity of 50% or greater, the NOx storage and reduction zone comprising a platinum group metal loaded on one or more first support, the or each first support comprising one or more alkaline earth metal compound, and a selective catalytic reduction zone on a monolithic substrate, the selective catalytic reduction zone comprising copper or iron loaded on a second support, the second support comprising a molecular sieve. | ||||||
| 174 | Systems and methods for reducing secondary emissions from catalyst components | US13551723 | 2012-07-18 | US09623377B2 | 2017-04-18 | Aleksey Yezerets; Z. Gerald Liu; Krishna Kamasamudram; Neal W. Currier |
| System and methods for reducing secondary emissions in an exhaust stream from an internal combustion engine are disclosed. The systems and methods include a filtration device positioned downstream from an SCR catalyst of an aftertreatment system disposed in the exhaust system. The filtration device can also be used for particulate filter diagnostics and for treatment of ammonia slip. | ||||||
| 175 | FORMING AGE-SUPPRESSING CATALYSTS | US15247601 | 2016-08-25 | US20170095807A1 | 2017-04-06 | Xingcheng Xiao; Gongshin Qi; Ryan J. Day |
| In an example of a method for forming a catalyst, a polymeric solution including a platinum group metal (PGM) is exposed to electrospinning to form carbon-based nanofibers containing PGM nanoparticles therein. An outer surface of the carbon-based nanofibers containing the PGM nanoparticles is coated with a metal oxide or a metal oxide precursor. The carbon-based nanofibers are selectively removed to form metal oxide nanotubes having PGM nanoparticles retained within a hollow portion thereof. | ||||||
| 176 | Oxidation Catalyst for Treating the Exhaust Gas of a Compression Ignition Engine | US15375745 | 2016-12-12 | US20170087512A1 | 2017-03-30 | David BERGEAL; Andrew Francis CHIFFEY; John Benjamin GOODWIN; Daniel HATCHER; Francois MOREAU; Agnes RAJ; Raj Rao RAJARAM; Paul Richard PHILLIPS; Cathal PRENDERGAST |
| An exhaust system for a compression ignition engine comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from the compression ignition engine, wherein the oxidation catalyst comprises: a platinum group metal (PGM) component selected from the group consisting of a platinum (Pt) component, a palladium (Pd) component and a combination thereof; an alkaline earth metal component; a support material comprising a modified alumina incorporating a heteroatom component; and a substrate, wherein the platinum group metal (PGM) component, the alkaline earth metal component and the support material are disposed on the substrate. | ||||||
| 177 | Catalysed soot filter for treating the exhaust gas of a compression ignition engine | US14710148 | 2015-05-12 | US09527035B2 | 2016-12-27 | David Bergeal; Andrew Francis Chiffey; John Benjamin Goodwin; Daniel Hatcher; Francois Moreau; Agnes Raj; Raj Rao Rajaram; Paul Richard Phillips; Cathal Prendergast; Gavin Michael Brown |
| A catalyzed soot filter comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from a compression ignition engine disposed on a filtering substrate, wherein the oxidation catalyst comprises: a platinum group metal (PGM) component selected from the group consisting of a platinum (Pt) component, a palladium (Pd) component and a combination thereof; an alkaline earth metal component; a support material comprising a modified alumina incorporating a heteroatom component. | ||||||
| 178 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE | US15098454 | 2016-04-14 | US20160303509A1 | 2016-10-20 | Kazuhiro ITOH; Hiromasa NISHIOKA; Yoshihisa TSUKAMOTO; Hiroshi OHTSUKI; Yasumasa NOTAKE |
| An apparatus may have a selective catalytic reduction NOx catalyst including a high-temperature catalyst layer having high capability of reducing NOx at high temperatures and a low-temperature catalyst layer having higher capability of reducing NOx at low temperatures than that of the high-temperature catalyst layer. The low-temperature catalyst layer may be arranged closer to a catalyst substrate than the high-temperature catalyst layer. A supply valve may add an addition quantity of reducing agent for reducing NOx to exhaust gas flowing into the selective catalytic reduction NOx catalyst. A controller may comprise at least one processor configured to control addition of the reducing agent by the supply valve such that the reducing agent concentration in a reducing agent atmosphere formed in the exhaust gas flowing into the selective catalytic reduction NOx catalyst is higher when the temperature of the selective catalytic reduction NOx catalyst is in a specific low temperature range. | ||||||
| 179 | EXHAUST GAS PURIFICATION CATALYST AND PRODUCTION METHOD THEREOF | US15038559 | 2014-10-27 | US20160296915A1 | 2016-10-13 | Naoto NAGATA; Kimiyasu ONO |
| Provided are an exhaust gas purification catalyst comprising a nanocomposite material comprising CeO2 and NiO which are uniformly mixed; and a production method thereof. The uniform mixing satisfies at least one of following conditions: (a) when the nanocomposite material is analyzed using STEM-EDX, the number of Ni atoms is from 3 to 20 atomic % relative to the total number of Ni and Ce atoms at a majority of randomly selected 5 or more measurement points in which both Ce and Ni elements are detected; and (b) in the Fourier transform of EXAFS spectrum at Ni—K absorption edge regarding the nanocomposite material, the ratio of the peak intensity of Ni—O near an interatomic distance of 1.8 Å to the peak intensity of Ni—Ni near an interatomic distance of 2.6 Å is 1:at least 0.50 to less than 2.18. | ||||||
| 180 | CATALYST FOR PURIFICATION OF EXHAUST GAS, NOX STORAGE-REDUCTION CATALYST, AND METHOD FOR PURIFYING EXHAUST GAS | US15061102 | 2016-03-04 | US20160279573A1 | 2016-09-29 | Miho HATANAKA; Toshiyuki TANAKA |
| A catalyst for purification of exhaust gas, comprising a first catalyst comprising: a first catalyst support comprising a first composite oxide composed of alumina, zirconia, and titania, and ceria supported on a surface of the first composite oxide in an amount of 0.5 to 10 parts by mass relative to 100 parts by mass of the first composite oxide; and a first noble metal supported on a surface of the first catalyst support in an amount of 0.05 to 5.0 parts by mass in terms of metal relative to 100 parts by mass of the first catalyst support. | ||||||
QQ群二维码
意见反馈
意见反馈