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公开(公告)号:US20180272279A1
公开(公告)日:2018-09-27
申请号:US15991565
申请日:2018-05-29
发明人: JOSEPH MICHAEL FEDEYKO , RODNEY KOK SHIN FOO , PAUL JOSEPH ANDERSEN , JILLIAN ELAINE COLLIER , JOHN LEONELLO CASCI , HAI-YING CHEN , RAJ RAO RAJARAM
IPC分类号: B01D53/94 , B01J29/06 , B01J29/00 , B01J29/076 , B01D53/86
CPC分类号: B01D53/9418 , B01D53/565 , B01D53/8628 , B01D53/9431 , B01D53/945 , B01D2251/2062 , B01D2251/2067 , B01D2255/2065 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/30 , B01D2255/50 , B01D2255/502 , B01D2255/504 , B01J29/005 , B01J29/061 , B01J29/064 , B01J29/072 , B01J29/076 , B01J29/46 , B01J29/56 , B01J29/72 , B01J29/76 , B01J29/7615 , B01J29/763 , B01J29/80 , B01J29/83 , B01J29/85 , B01J29/87 , B01J35/04 , B01J2029/062 , B01J2229/18 , B01J2229/183 , B01J2229/36 , C01B39/38 , C01B39/46 , C01B39/54 , Y02A50/2324 , Y02A50/2325 , Y02C20/10 , Y02T10/22 , Y02T10/24
摘要: A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt.
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公开(公告)号:US20180223711A1
公开(公告)日:2018-08-09
申请号:US15771999
申请日:2015-10-29
申请人: VOLVO TRUCK CORPORATION , Centre national de la recherche scientifique , Université Claude Bernard Lyon 1
IPC分类号: F01N3/035 , B01D53/94 , B01J29/40 , B01J29/70 , B01J29/08 , B01J29/60 , B01J35/04 , B01J35/10 , B01J37/02 , B01J29/85 , B01J35/02 , F01N3/20 , F01N3/28
CPC分类号: F01N3/035 , B01D53/9418 , B01D53/944 , B01D2255/50 , B01D2255/502 , B01D2255/504 , B01D2255/9155 , B01D2255/9202 , B01D2255/9205 , B01J29/08 , B01J29/10 , B01J29/40 , B01J29/42 , B01J29/60 , B01J29/61 , B01J29/7007 , B01J29/7015 , B01J29/7207 , B01J29/7215 , B01J29/723 , B01J29/85 , B01J35/0006 , B01J35/023 , B01J35/04 , B01J35/10 , B01J35/1057 , B01J35/1061 , B01J35/1066 , B01J37/0215 , B01J37/10 , B01J2229/64 , B01J2229/66 , F01N3/2066 , F01N3/2828 , F01N2330/06 , F01N2330/30 , F01N2370/04 , F01N2510/063 , Y02A50/2325 , Y02C20/10 , Y02T10/24
摘要: Disclosed is a reactive filter, that is a selective catalytic reduction filter or an oxidative reaction filter, including a porous substrate including internal pores having their inner surface, totally or partially, directly coated with a catalytic zeolite material resulting from an in situ hydrothermal synthesis. Also disclosed is a process for preparing such a reactive filter and the use thereof in an engine exhaust depolluting system.
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公开(公告)号:US10035142B2
公开(公告)日:2018-07-31
申请号:US15437634
申请日:2017-02-21
申请人: NGK INSULATORS, LTD.
CPC分类号: B01J35/04 , B01D46/247 , B01D46/2474 , B01D53/9413 , B01D53/9418 , B01D2046/2437 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , B01D2255/504 , B01D2255/915 , B01D2255/9155 , B01D2255/9205 , B01D2258/012 , B01J35/002 , F01N3/021 , F01N3/0222 , F01N3/035 , F01N3/2066 , F01N3/2842 , F01N2260/06 , F01N2330/30 , F01N2330/48 , Y02A50/2325 , Y02T10/24
摘要: The honeycomb structure includes a honeycomb structure body having porous partition walls, and a plugging portion disposed in one of open ends of each cell, a thickness of the partition walls is 0.30 mm or more and 0.51 mm or less, a cell density is 30 cells/cm2 or more and 93 cells/cm2 or less, a filtration area (cm2) of inflow cells included per cm3 of the honeycomb structure body is defined as an inflow side filtration area G (cm2/cm3), a value obtained by dividing a pore volume Vp (cm3) formed in the partition walls by a total volume Va (L) including the cells is defined as a pore volume ratio A (cm3/L), and in this case, a product of the inflow side filtration area G (cm2/cm3) and the pore volume ratio A (cm3/L) is 1800 cm2/L or more and 3200 cm2/L or less.
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4.
公开(公告)号:US20180185826A1
公开(公告)日:2018-07-05
申请号:US15741341
申请日:2016-06-14
发明人: Masatoshi Uetani , Takahiro Mishima
IPC分类号: B01J29/46 , F01N3/035 , F01N3/022 , B01J21/06 , B01J35/04 , B01J37/00 , B01J37/08 , B01J37/30 , B01D53/94
CPC分类号: B01J29/46 , B01D53/94 , B01D53/9413 , B01D2255/504 , B01D2255/915 , B01J21/063 , B01J35/04 , B01J37/00 , B01J37/0009 , B01J37/04 , B01J37/08 , B01J37/30 , B01J2229/183 , B01J2229/38 , F01N3/022 , F01N3/0222 , F01N3/035 , F01N2510/063
摘要: Provided is a method for producing an exhaust gas purifying filter that enables a catalyst to be supported on an exhaust gas purifying filter in a simple manner without the need for impregnation with or application of a solution containing catalyst particles after the production of the exhaust gas purifying filter and also enables an exhaust gas purifying filter having a high NOx reduction efficiency to be obtained. The method includes the steps of: extruding a mixture containing zeolite and raw material particles of a support to prepare a green body; firing the green body to prepare a sintered body; treating the sintered foody with alkali under a condition at pH 9.5 or more; and exchanging an element at an ion-exchange site of the zeolite contained in the alkali-treated sintered body with a transition metal.
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公开(公告)号:US09981251B2
公开(公告)日:2018-05-29
申请号:US15319243
申请日:2015-06-15
申请人: UMICORE AG & CO. KG
发明人: Naohiro Kato , Franz Dornhaus
IPC分类号: B01D53/56 , B01D53/94 , B01J23/10 , B01J23/40 , F01N3/20 , F01N3/28 , B01J23/63 , B01J29/76 , B01J35/00 , F01N3/10 , F01N13/00
CPC分类号: B01J23/63 , B01D53/9418 , B01D53/9477 , B01D2251/2067 , B01D2255/1021 , B01D2255/1023 , B01D2255/2063 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , B01D2255/504 , B01D2255/904 , B01D2255/9155 , B01D2258/012 , B01J21/04 , B01J21/12 , B01J29/763 , B01J35/0006 , B01J37/0201 , B01J37/0215 , F01N3/103 , F01N3/2066 , F01N3/2825 , F01N13/009 , F01N2330/30 , F01N2510/06 , Y02T10/24
摘要: The present invention provides an exhaust gas treatment system comprising an oxidation catalyst and an SCR catalyst, wherein the oxidation catalyst comprises an inert ceramic or metal honeycomb body and a catalytically active coating comprising a platinum group metal supported on a refractory support oxide and lanthanum wherein lanthanum is present in an amount of at least 13% by weight calculated as La2O3 and based on the weight of the refractory support material.
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公开(公告)号:US09757691B2
公开(公告)日:2017-09-12
申请号:US14935048
申请日:2015-11-06
申请人: Randal A. Goffe
发明人: Randal A. Goffe
IPC分类号: B01D53/56 , B01D53/94 , B01J23/00 , B01J29/04 , B01J21/06 , B01J29/46 , B01J29/06 , B01J29/70 , B01J23/22
CPC分类号: B01D53/9418 , B01D2255/2061 , B01D2255/2065 , B01D2255/20715 , B01D2255/20723 , B01D2255/50 , B01D2255/504 , B01D2257/404 , B01D2258/012 , B01J21/066 , B01J23/10 , B01J23/22 , B01J23/34 , B01J23/40 , B01J23/74 , B01J29/061 , B01J29/46 , B01J29/7015 , B01J29/723 , B01J29/80 , B01J29/85 , B01J35/0006
摘要: This disclosure features an exhaust aftertreatment system that includes a selective catalytic reduction catalyst that includes (1) a metal oxide catalyst and a metal zeolite catalyst, (2) a metal oxide catalyst that is other than a vanadium oxide catalyst and a vanadium oxide catalyst, or (3) a metal oxide catalyst that is other than a vanadium oxide catalyst together with a metal zeolite catalyst and a vanadium oxide catalyst. When used in a selective catalytic reduction system in a diesel engine, the catalyst composition can increase a conversion efficiency of nitrogen oxides (NOx) to nitrogen and water by a minimum of 2 percent compared to the metal zeolite catalyst alone, the metal oxide catalyst alone, or the vanadium oxide catalyst alone, when present.
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7.
公开(公告)号:US20170197178A1
公开(公告)日:2017-07-13
申请号:US15315344
申请日:2015-06-01
发明人: Christian Perbandt
IPC分类号: B01D53/86 , B01J29/072 , B01D53/90
CPC分类号: B01D53/8628 , B01D53/8631 , B01D53/8696 , B01D53/90 , B01D53/9495 , B01D2251/206 , B01D2251/2062 , B01D2251/2067 , B01D2255/1021 , B01D2255/20738 , B01D2255/20746 , B01D2255/20761 , B01D2255/2092 , B01D2255/30 , B01D2255/50 , B01D2255/504 , B01D2255/91 , B01D2257/402 , B01D2257/404 , B01D2258/02 , B01J29/072 , C01B21/02 , Y02C20/10 , Y02P20/153
摘要: A method of reducing the concentration of NOx nitrogen oxides in tail gas obtained during the startup of a plant for preparation of nitric acid may involve heating the tail gas as a result of measures for preparation of nitric acid from a starting temperature T0, through a threshold temperature TG, and to an operating temperature TB at which steady-state operation of the plant can be effected (T0
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公开(公告)号:US20170128883A1
公开(公告)日:2017-05-11
申请号:US14935048
申请日:2015-11-06
申请人: Randal A. Goffe
发明人: Randal A. Goffe
CPC分类号: B01D53/9418 , B01D2255/2061 , B01D2255/2065 , B01D2255/20715 , B01D2255/20723 , B01D2255/50 , B01D2255/504 , B01D2257/404 , B01D2258/012 , B01J21/066 , B01J23/10 , B01J23/22 , B01J23/34 , B01J23/40 , B01J23/74 , B01J29/061 , B01J29/46 , B01J29/7015 , B01J29/723 , B01J29/80 , B01J29/85 , B01J35/0006
摘要: This disclosure features an exhaust aftertreatment system that includes a selective catalytic reduction catalyst that includes a metal oxide catalyst and a metal zeolite catalyst, a metal oxide catalyst that is other than a vanadium oxide catalyst and a vanadium oxide catalyst, or a metal oxide catalyst that is other than a vanadium oxide catalyst together with a metal zeolite catalyst and a vanadium oxide catalyst. When used in a selective catalytic reduction system in a diesel engine, the catalyst composition can increase a conversion efficiency of nitrogen oxides (NOx) to nitrogen and water by a minimum of 2 percent compared to the metal zeolite catalyst alone, the metal oxide catalyst alone, or the vanadium oxide catalyst alone, when present.
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公开(公告)号:US20170096923A1
公开(公告)日:2017-04-06
申请号:US15285546
申请日:2016-10-05
发明人: Andrew Francis CHIFFEY , Jack CORPS , Laura MITCHELL-DOWNIE , Francois MOREAU , Matthew O'BRIEN
IPC分类号: F01N3/08 , B01J29/74 , F01N13/00 , B01J23/656 , B01J35/04 , F01N3/022 , B01D53/94 , B01J29/78
CPC分类号: F01N3/0842 , B01D53/18 , B01D53/9422 , B01D53/944 , B01D53/9463 , B01D53/9468 , B01D53/9472 , B01D53/9481 , B01D2255/10 , B01D2255/1021 , B01D2255/1023 , B01D2255/2061 , B01D2255/2063 , B01D2255/2065 , B01D2255/2066 , B01D2255/20707 , B01D2255/20776 , B01D2255/30 , B01D2255/407 , B01D2255/50 , B01D2255/502 , B01D2255/504 , B01D2255/9022 , B01D2255/9032 , B01D2255/908 , B01D2255/91 , B01D2258/012 , B01J23/6562 , B01J29/7415 , B01J29/743 , B01J29/783 , B01J35/04 , B01J37/0244 , B01J37/0246 , B01J37/0248 , B01J2229/186 , B01J2229/42 , F01N3/0222 , F01N3/0814 , F01N3/0821 , F01N13/009 , F01N13/0093 , F01N2370/04 , F01N2510/063 , F01N2570/14 , F01N2570/16 , Y02A50/2325 , Y02A50/2344
摘要: A NOx absorber catalyst for treating an exhaust gas from a diesel engine. The NOx absorber catalyst comprises a first NOx absorber material comprising a molecular sieve catalyst, wherein the molecular sieve catalyst comprises a noble metal and a molecular sieve, and wherein the molecular sieve contains the noble metal; a second NOx absorber material comprising palladium (Pd) supported on an oxide of cerium; and a substrate having an inlet end and an outlet end.
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公开(公告)号:US09403156B2
公开(公告)日:2016-08-02
申请号:US14662946
申请日:2015-03-19
申请人: UT-Battelle, LLC
发明人: Chaitanya K. Narula , Xiaofan Yang
IPC分类号: B01J29/06 , B01J29/46 , B01J29/40 , C01B39/02 , C01B39/06 , C01B39/36 , B01D53/94 , B01J23/825 , B01J23/83 , B01J37/00 , B01J37/02 , B01J37/08
CPC分类号: B01J29/46 , B01D53/9418 , B01D2255/206 , B01D2255/2063 , B01D2255/207 , B01D2255/20738 , B01D2255/20761 , B01D2255/209 , B01D2255/504 , B01D2258/012 , B01J23/825 , B01J23/83 , B01J29/405 , B01J37/009 , B01J37/0203 , B01J37/088 , B01J2229/186 , C01B39/02 , C01B39/026 , C01B39/06 , C01B39/36 , Y02T10/24
摘要: A catalyst comprising a zeolite loaded with copper ions and at least one trivalent metal ion other than Al+3, wherein the catalyst decreases NOx emissions in diesel exhaust. The trivalent metal ions are selected from, for example, trivalent transition metal ions, trivalent main group metal ions, and/or trivalent lanthanide metal ions. In particular embodiments, the catalysts are selected from Cu—Fe-ZSM5, Cu—La-ZSM-5, Fe—Cu—La-ZSM5, Cu—Sc-ZSM-5, and Cu—In-ZSM5. The catalysts are placed on refractory support materials and incorporated into catalytic converters.
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