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 |
|---|---|---|---|---|---|---|
| 141 | Exhaust system with a modified lean NOx trap | US14487195 | 2014-09-16 | US10119445B2 | 2018-11-06 | Daniel Swallow |
| An exhaust system for treating an exhaust gas from an internal combustion engine is disclosed. The system comprises a modified lean NOx trap (LNT), a urea injection system, and an ammonia-selective catalytic reduction (NH3-SCR) catalyst. The modified LNT comprises platinum, palladium, barium, and a ceria-containing material, and has a platinum:palladium molar ratio of at least 3:1. The modified LNT stores NOx at temperatures below about 200° C. and releases the stored NOx at temperatures above about 200° C. The urea injection system injects urea at temperatures above about 180° C. | ||||||
| 142 | METHOD FOR RECYCLING DENITRATION CATALYST | US15764209 | 2017-03-07 | US20180280941A1 | 2018-10-04 | Eiji KIYONAGA; Kenji HIKINO; Keiichiro MORITA; Toshikazu YOSHIKAWA; Masatake HARUTA; Toru MURAYAMA; Makoto MINO |
| There is provided a method for recycling a catalyst that exhibits a high denitration efficiency at a relatively low temperature and does not cause oxidation of SO2 in a selective catalytic reduction reaction that uses ammonia as a reducing agent. A method for recycling a denitration catalyst includes a step of removing a used denitration catalyst from a denitration device and then coating the used denitration catalyst with a catalyst component. The catalyst component contains 43 wt % or more of vanadium pentoxide and has a BET specific surface area of 30 m2/g or more, and the denitration catalyst after recycling is used for denitration at 200° C. or lower. | ||||||
| 143 | COMBUSTION SYSTEM | US15764245 | 2017-03-07 | US20180280875A1 | 2018-10-04 | Eiji KIYONAGA; Kenji HIKINO; Keiichiro MORITA; Masatake HARUTA; Toru MURAYAMA; Makoto MINO |
| A combustion system operated at low cost is provided. A combustion system 1 includes a combustion device 10 that burns fuel, an exhaust line L1 through which exhaust gas flows, the exhaust gas being generated through combustion of the fuel in the combustion device 10, an air preheater 30 that is disposed in the exhaust line L1 and that recovers heat from the exhaust gas, and a denitration device 40 that is disposed in the exhaust line L1 and that removes nitrogen oxide from the exhaust gas using a denitration catalyst. The denitration device 40 is disposed downstream from the air preheater 30 in the exhaust line L1, and the denitration catalyst contains 43 wt % or more of vanadium pentoxide and has a BET specific surface area of 30 m2/g or more. | ||||||
| 144 | MOTOR VEHICLE INCLUDING A LEAN NOX TRAP REGENERATION SYSTEM AND METHOD FOR REGENERATION | US15470618 | 2017-03-27 | US20180274464A1 | 2018-09-27 | Stefano Pellegrino; Charles E. Solbrig; Jean-Yves Lavallee |
| An emissions control system for a motor vehicle including an internal combustion engine includes a lean NOx trap (LNT) device including an LNT inlet and an LNT outlet, and a LNT sensor arranged at the LNT inlet. The LNT sensor is operable to detect a temperature of exhaust gases passing into the LNT device. A selective catalytic reduction (SCR) member is fluidically connected to the LNT device. The SCR device includes an SCR inlet and an SCR outlet. An SCR sensor is mounted to the SCR. The SCR sensor is operable to detect a temperature of the SCR. A LNT regeneration control system including a LNT regeneration controller is operatively connected to the LNT sensor and the SCR sensor. The LNT regeneration control system is operable to activate the LNT regeneration controller based on inputs from the LNT sensor and the SCR sensor. | ||||||
| 145 | DENITRATION CATALYST AND METHOD FOR PRODUCING THE SAME | US15764038 | 2016-09-12 | US20180272318A1 | 2018-09-27 | Eiji KIYONAGA; Kenji HIKINO; Keiichiro MORITA; Masatake HARUTA; Toru MURAYAMA; Makoto MINO |
| There is provided a catalyst that exhibits a high denitration efficiency at a relatively low temperature and does not cause oxidation of SO2 in a selective catalytic reduction reaction that uses ammonia as a reducing agent. A denitration catalyst contains 3.3 wt % or more of vanadium oxide in terms of vanadium pentoxide and has a BET specific surface area of 10 m2/g or more. | ||||||
| 146 | Catalyzed ceramic candle filter and method of cleaning process off- or exhaust gases | US15545477 | 2015-03-20 | US10076743B2 | 2018-09-18 | Francesco Castellino; Lars Storm Pedersen |
| Ceramic candle filter and use of the filter in the removal of particulate matter in form of soot, ash, metals and met-al compounds, together with hydrocarbons and nitrogen oxides being present in process off-gas or engine exhaust gas, the filter includes a combined SCR and oxidation catalyst being arranged on the dispersion side and within wall of the filter; and a palladium including catalyst arranged on the permeation side and within wall of the filter facing the permeation side. | ||||||
| 147 | HONEYCOMB CATALYTIC BODY | US15901207 | 2018-02-21 | US20180250658A1 | 2018-09-06 | Shiori NAKAO; Shogo HIROSE |
| A honeycomb catalytic body including: a honeycomb structure having porous partition walls, and a catalyst layer including a vanadium catalyst, wherein a cell density of the honeycomb structure is in a range of 8 cells to 48 cells per square centimeter, an amount of the vanadium catalyst to be loaded is in a range of 150 g/L to 400 g/L, and a catalyst charging ratio represented by Equation (1) mentioned below in a cut face of the honeycomb catalytic body is from 50% to 100%. the catalyst charging ratio (%)=(the sectional area of the catalyst layer loaded onto the partition wall inner portions)/(the sectional area of the pores before the catalyst is loaded)×100. Equation (1): | ||||||
| 148 | Systems and methods for reducing secondary emissions from catalyst components | US15462260 | 2017-03-17 | US10060845B2 | 2018-08-28 | 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. | ||||||
| 149 | CATALYTIC MODULE WITH IMPROVED EFFECTIVENESS IN TERMS OF AGEING | US15513812 | 2015-09-22 | US20180221857A1 | 2018-08-09 | Sebastien DONET; Christelle ANGLADE; Thierry KREBS |
| A catalytic module, containing a solid support, and a stack including at least the following layers arranged in the following order, taking the solid support as a base: a first porous layer containing CeO2 and deposited by chemical vapour deposition, a first catalytic layer containing at least one metal and/or at least one alloy of metals selected from, for example, Pt, Pd, Rh. | ||||||
| 150 | Exhaust gas purifying catalyst | US15504430 | 2015-10-21 | US10022705B2 | 2018-07-17 | Toshiaki Kimura; Hiroyuki Horimura; Takumi Yamaguchi; Takeshi Endo; Akihiro Iimuro; Ryoichi Oshima; Ohki Houshito; Yunosuke Nakahara |
| To reduce an OSC material, while maintaining necessary OSC capacity; and to improve heat resistance and reactivity of a precious metal. Proposed is an exhaust gas purifying catalyst which comprises a first catalyst layer that is formed on the surface of a substrate that is formed of a ceramic or a metal, and a second catalyst layer that is formed on the upper side of the first catalyst layer. The first catalyst layer comprises a precious metal, an OSC material and an alumina, and the OSC material and the alumina are comprised at a mass ratio of OSC material:alumina=1:7 to 1:3. The second catalyst layer comprises a precious metal, an OSC material and an alumina, and the OSC material and the alumina are comprised at a mass ratio of OSC material:alumina=1:1 to 10:0. | ||||||
| 151 | CATALYSTS WITH ATOMICALLY DISPERSED PLATINUM GROUP METAL COMPLEXES | US15334109 | 2016-10-25 | US20180111112A1 | 2018-04-26 | Ming Yang; Ryan J. Day; Se H. Oh; Gongshin Qi; Wei Li |
| A catalytic converter includes a catalyst. The catalyst includes a non-modified metal oxide support and platinum group metal (PGM) complexes atomically dispersed on the non-modified metal oxide support. The PGM complexes include a PGM species selected from the group consisting of an atom of a platinum group metal, a cluster including from 2 atoms to less than 10 atoms of the platinum group metal, and combinations thereof. An alkali metal or an alkaline earth metal is bonded to the PGM species. The alkali or alkaline earth metal is part of a structure including oxygen atoms and hydrogen atoms. | ||||||
| 152 | STAINLESS STEEL SHEET FOR EXHAUST SYSTEM PART USE EXCELLENT IN INTERMITTENT OXIDATION CHARACTERISTIC AND EXHAUST SYSTEM PART | US15563159 | 2016-03-29 | US20180080106A1 | 2018-03-22 | Shinichi TERAOKA; Yoshiharu INOUE; Junichi HAMADA; Atsuhisa YAKAWA |
| A stainless steel sheet free of surface flaws, having an enhanced high temperature strength and corrosion resistance, not becoming brittle at a high temperature, and further exhibiting a high oxidation resistance enabling it to be suitably used as an inside pipe of a double pipe of an exhaust manifold, a turbocharger part, and other automobile exhaust system parts, which stainless steel sheet has a predetermined composition of chemical components and satisfies Cr+20Mo≧24.0%, and Si+20C+15N≧5.8%. Further, an automobile exhaust system part, excellent in both the oxidation resistances of the base material and weld zone using the above stainless steel sheet, having a gradient of change of sheet thickness between the weld metal and the base material of the above stainless steel sheet of 15 degrees or less. | ||||||
| 153 | Method for producing metal exchanged metallo-aluminophosphates by solid-state ion exchange at low temperatures | US15127881 | 2014-10-15 | US09914114B2 | 2018-03-13 | Ton V. W. Janssens; Peter N. R. Vennestrøm |
| Method for the preparation of a metal exchanged crystalline microporous metalloaluminophosphate or mixtures containing metal exchanged microporous metalloaluminophosphates materials comprising the steps of providing a dry mixture containing a) one or more metalloaluminophosphates starting materials that exhibit ion exchange capacity, and b) one or more metal compounds; heating the mixture in a gaseous atmosphere containing ammonia to a temperature (less than 300 C) and for a time sufficient to initiate and perform a solid state ion exchange of ions of the metal compound and ions of the crystalline microporous material; and obtaining the metal-exchanged microporous metalloaluminophosphate material or mixtures containing the metal-exchanged microporous metalloaluminophosphate material. | ||||||
| 154 | DIESEL OXIDATION CATALYST AND EXHAUST SYSTEM | US15806933 | 2017-11-08 | US20180065084A1 | 2018-03-08 | Andrew Francis CHIFFEY; John Benjamin GOODWIN; James LEELAND; Francois MOREAU |
| An oxidation catalyst for treating an exhaust gas from a diesel engine and an exhaust system comprising the oxidation catalyst are described. The oxidation catalyst comprises: a first washcoat region for oxidising carbon monoxide (CO) and hydrocarbons (HCs), wherein the first washcoat region comprises a first platinum group metal (PGM) and a first support material; a second washcoat region for oxidising nitric oxide (NO), wherein the second washcoat region comprises platinum (Pt), manganese (Mn) and a second support material; and a substrate having an inlet end and an outlet end; wherein the second washcoat region is arranged to contact the exhaust gas at the outlet end of the substrate and after contact of the exhaust gas with the first washcoat region. | ||||||
| 155 | CATALYTIC CONVERTERS WITH AGE-SUPPRESSING CATALYSTS | US15253039 | 2016-08-31 | US20180056276A1 | 2018-03-01 | Xingcheng Xiao; Gongshin Qi; Ryan J. Day; Ming Yang |
| A catalytic converter includes a catalyst. The catalyst includes a support, platinum group metal (PGM) particles dispersed on the support, and metal oxide nanoparticles formed on the support. The metal oxide nanoparticles are dispersed between a first set of the PGM particles and a second set of the PGM particles to suppress aging of the PGM particles. | ||||||
| 156 | Exhaust purification system of internal combustion engine | US14910055 | 2014-06-19 | US09890679B2 | 2018-02-13 | Yuki Bisaiji; Kohei Yoshida |
| An internal combustion engine in which a hydrocarbon feed valve, exhaust purification catalyst, and NOX selective reduction catalyst are arranged in an engine exhaust passage. A first NOX removal method which injects hydrocarbons from the hydrocarbon feed valve within a predetermined range of period and uses the reducing intermediate which is generated due to this so as to reduce the NOX contained in the exhaust gas and a second NOX removal method which makes the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst rich with a period longer than this predetermined range are used. When the first NOX removal method should be used and the amount of adsorbed ammonia at the NOX selective reduction catalyst is large, use of the first NOX removal method is stopped. | ||||||
| 157 | Exhaust gas purification apparatus for internal combustion engine | US15098454 | 2016-04-14 | US09889406B2 | 2018-02-13 | 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. | ||||||
| 158 | PLATINUM-CONTAINING CATALYSTS FOR COMBUSTION ENGINES | US15555233 | 2016-03-03 | US20180036716A1 | 2018-02-08 | Xinyi Wei; Stanley A. Roth; Haiyang Zhu |
| Emissions treatment systems of combustion engines are provided, which comprise a platinum-containing catalyst that is degreened during production, which is before exposure to operating conditions of a vehicle having a diesel engine. The platinum-containing catalyst, in the form of a platinum component on a high surface area refractory metal oxide support, exhibits a vibration frequency of about 2085 to about 2105 cm−1 as measured by CO-DRIFTS. Such catalytic material is essentially-free of platinum oxide species found at greater than about 2110 cm−1 as measured by CO-DRIFTS. Such catalysts can provide excellent and consistent conversion of nitrogen oxide (NO) to nitrogen dioxide (NO2). | ||||||
| 159 | EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE | US15547988 | 2016-01-29 | US20180023436A1 | 2018-01-25 | Ryosaku Takahara; Koichi Inaba; Nobuhiro Komatsu; Masafumi Sakota; Takahiro Kogawa; Michitaka Yamaguchi |
| An exhaust gas purification device is equipped with: an NOx purification unit disposed in exhaust gas piping of an engine supporting an NOx storage catalyst (NSC); a catalyzed soot filter (CSF) disposed downstream of the NOx purification unit supporting a particulate combustion catalyst causing captured particulates to combust; and an electronic control unit (ECU) which controls exhaust gas flowing into the NSC to be rich and which, by raising the temperature of the NSC, acts as a regeneration device that causes sulfur components captured in the NSC to be desorbed. The particulate combustion catalyst is provided where Ag and Pd have been alloyed on an Al2O3 carrier; the quantity of Ag supported by the Al2O3 carrier is 1.2-2.5 g/L; the quantity of Pd supported by the Al2O3 carrier is 0.7 g/L or less; and the ratio Ag/Pd of the Ag support quantity to the Pd support quantity is 1.7-8.3. | ||||||
| 160 | EXHAUST GAS TREATMENT DEVICE HAVING INTEGRATED GAS SAMPLING SENSOR | US15202981 | 2016-07-06 | US20180010507A1 | 2018-01-11 | Luciano Nunziato Di Perna; Jianwen Li; Raffaello Ardanese; Rahul Mital; David B. Brown |
| An exhaust gas treatment device includes a housing having a wall. The wall of the housing defines an interior chamber. A substrate is supported by the housing within the interior chamber of the housing. The substrate extends along a longitudinal axis. The substrate includes a flow through structure that allows the flow of exhaust gas to flow through the substrate. The substrate includes a catalytic composition disposed thereon for reacting with the flow of exhaust gas. The substrate includes a cavity, extending along a cavity axis, which is transverse to the longitudinal axis of the substrate. A sensor is attached to the housing. The sensor includes a probe that at least partially extends into the cavity of the substrate, for sensing a gaseous component in the flow of exhaust gas. The cavity mixes the flow of exhaust gas and directs the exhaust gas toward the probe of the sensor. | ||||||
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