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公开(公告)号：US20240326020A1
公开(公告)日：2024-10-03
申请号：US18614779
申请日：2024-03-25
发明人： Brenda BENET RAJKUMAR , Guy CHANDLER , John TURNER , Rui LI , Olivia DUNSEATH , Chris CORRIGAN
CPC分类号： B01J23/40 , B01D53/945 , B01D53/9454 , B01J35/40 , B01J35/56 , B01J37/0018 , B01J37/0219 , B01D2255/102 , B01D2255/9155 , B01D2258/012
摘要： A washcoat slurry comprising a platinum group metal (PGM) selected from the group consisting of Pt, Pd, Rh and mixtures thereof; an oxygen storage capacity (OSC) material having a D90 in a range of from 1 to 50 μm; an inorganic oxide support; an organic pore former; and a solvent is disclosed. A method for the manufacture of a catalytic gasoline particulate filter for the treatment of an exhaust gas comprises coating a wall-flow filter substrate with the washcoat slurry.
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公开(公告)号：US12064727B2
公开(公告)日：2024-08-20
申请号：US17931415
申请日：2022-09-12
发明人： Paul Joseph Andersen , John Leonello Casci , Hai-Ying Chen , Jillian Elaine Collier , Joseph Michael Fedeyko , Rodney Kok Shin Foo , Raj Rao Rajaram
IPC分类号： B01D53/94 , B01D53/56 , B01D53/86 , B01J29/00 , B01J29/06 , B01J29/064 , B01J29/072 , B01J29/076 , B01J29/46 , B01J29/56 , B01J29/76 , B01J29/80 , B01J29/83 , B01J29/85 , B01J35/56 , C01B39/38 , C01B39/46 , C01B39/54 , B01J29/72 , B01J29/87
CPC分类号： B01D53/9418 , B01D53/565 , B01D53/8628 , B01D53/9431 , B01D53/945 , B01J29/005 , B01J29/061 , B01J29/064 , B01J29/072 , B01J29/076 , B01J29/46 , B01J29/56 , B01J29/76 , B01J29/7615 , B01J29/763 , B01J29/80 , B01J29/83 , B01J29/85 , B01J35/56 , C01B39/38 , C01B39/46 , C01B39/54 , B01D2251/2062 , B01D2251/2067 , B01D2255/2065 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/30 , B01D2255/50 , B01D2255/502 , B01D2255/504 , B01J2029/062 , B01J29/72 , B01J29/87 , B01J2229/18 , B01J2229/183 , B01J2229/36 , Y02A50/20 , Y02C20/10 , Y02T10/12
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, Jr and Pt.
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公开(公告)号：US20240269613A1
公开(公告)日：2024-08-15
申请号：US18427898
申请日：2024-01-31
发明人： Shuhei NAGAOKA , YILIGUMA
CPC分类号： B01D53/945 , B01D53/9468 , B01J23/10 , B01J23/20 , B01J23/464 , B01J35/19 , B01J37/0215 , F01N3/101 , F01N3/2803 , B01D2255/1025 , B01D2255/9022 , B01D2255/908 , B01D2257/404 , B01D2257/502 , B01D2257/702 , B01D2258/012 , F01N2370/04
摘要： A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. In particular, provided is a catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first alumina, wherein the first alumina is doped with from 0.01 to less than 5.0 wt. % Ta, based on the total weight of the doped alumina.
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公开(公告)号：US20240269611A1
公开(公告)日：2024-08-15
申请号：US18437280
申请日：2024-02-09
发明人： Silvia ALCOVE CLAVE , Jillian COLLIER , Veselina Mihaylova GEORGIEVA , Alexander Nicholas Michael GREEN , Loredana MANTAROSIE , Maria Pia RUGGERI , Roberta VILLAMAINA
IPC分类号： B01D53/94 , B01J29/68 , B01J29/76 , B01J35/00 , B01J35/57 , B01J37/02 , B01J37/08 , F01N3/20 , F01N3/28
CPC分类号： B01D53/9418 , B01D53/9436 , B01D53/9472 , B01D53/9477 , B01J29/68 , B01J29/763 , B01J35/19 , B01J35/57 , B01J37/0201 , B01J37/0236 , B01J37/08 , F01N3/2066 , F01N3/2803 , B01D2251/2062 , B01D2251/2067 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9032 , B01D2255/9155 , B01D2257/402 , B01D2257/404 , B01D2257/406 , B01D2258/012 , B01D2258/016 , F01N2370/04 , F01N2610/02
摘要： Provided is an SCR catalyst article comprising a substrate having thereon a second catalyst composition downstream of a first catalyst composition, wherein the first and second catalyst compositions are different and wherein the first catalyst composition is an SCR catalyst composition and the second catalyst composition comprises an Fe-loaded small- or medium-pore molecular sieve, the small- or medium-pore molecular sieve having a silica-to-alumina ratio (SAR) of from 6 to 19.
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公开(公告)号：US20240238725A1
公开(公告)日：2024-07-18
申请号：US18409927
申请日：2024-01-11
发明人： Satoshi KAMEOKA , Shuhei NAGAOKA , Xiaorui ZHANG
CPC分类号： B01D53/945 , B01J23/8906 , B01J23/894 , B01J35/392 , B01J37/0215 , F01N3/101 , F01N3/2803 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2061 , B01D2255/2063 , B01D2255/2065 , B01D2255/2068 , B01D2255/20715 , B01D2255/20738 , B01D2255/2092 , B01D2255/407 , B01D2255/908 , B01D2255/9207 , B01D2257/404 , B01D2257/502 , B01D2257/702 , B01D2258/01 , F01N2370/04 , F01N2510/068
摘要： A catalyst composition comprising an intermetallic compound is disclosed. The intermetallic compound comprises a transition metal selected from Fe, Ce, Y, Nb and combinations thereof; and a noble metal selected from Pt, Pd, Rh and combinations thereof. The invention further relates to a washcoat comprising the catalyst composition, and a catalyst article comprising the catalyst composition, a method of treating exhaust gas with the catalyst article, a method for manufacturing the catalyst article and systems comprising the catalyst article.
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6.发明公开公开(公告)号：US20240149249A1
公开(公告)日：2024-05-09
申请号：US18542894
申请日：2023-12-18
发明人： Qinghe ZHENG , Jing LU , Michael HOWARD
CPC分类号： B01J23/42 , B01J21/04 , B01J23/10 , B01J23/464 , F01N3/101 , F01N2570/10 , F01N2570/12 , F01N2570/14
摘要： A method of manufacturing a catalyst article, the method comprising: providing a complex of a polyphenol and a PGM, the PGM comprising rhodium and/or platinum, the polyphenol comprising an ester functional group; providing a support material; applying the complex to the support material to form a loaded support material; disposing the loaded support material on a substrate; and heating the loaded support material to form nanoparticles of the PGM on the support material.
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公开(公告)号：US20240109055A1
公开(公告)日：2024-04-04
申请号：US18536322
申请日：2023-12-12
发明人： Shuhei NAGAOKA , Xiaorui ZHANG
CPC分类号： B01J23/58 , B01D53/945 , B01J21/04 , F01N3/101 , B01D2255/9032 , B01D2255/908 , B01D2257/40 , B01D2257/502 , B01D2257/702
摘要： A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first alumina, wherein the first alumina is doped with a first dopant of at least 5 wt. %, and wherein the first dopant is selected from the group consisting of Zr, Ta, Mo, W, Ti, Nb, and a combination thereof.
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公开(公告)号：US20240091757A1
公开(公告)日：2024-03-21
申请号：US18263661
申请日：2022-03-03
发明人： Alan BOOTLAND , David DAVIS , Mikael CARLSSON , Jonathon HIGGINS , Andrew Edward RICHARDSON , John WEST , Emma SOFTLEY
CPC分类号： B01J37/08 , B01J23/755 , B01J33/00 , B01J37/14 , B01J37/18 , C01B3/40 , C01B2203/0233 , C01B2203/1058
摘要： A method for activating a catalyst is described comprising the steps of: (i) installing a reduced and passivated catalyst containing crystallites of a catalytic metal comprising nickel, cobalt or iron in elemental form encapsulated by a layer comprising an oxide of the catalytic metal in a reactor, such as a steam methane reforming reactor, in which it is to be used, and (ii) heating the reduced and passivated catalyst in the reactor under a vacuum or an inert gas to a temperature in the range (TT−X) to (TT+Y), where TT is the Tammann temperature of the catalytic metal in elemental form in degrees Centigrade, X is 400 and Y is 200, to form a catalytically active surface on the catalyst without requiring the application of a reducing gas.
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公开(公告)号：US20240066468A1
公开(公告)日：2024-02-29
申请号：US18239850
申请日：2023-08-30
发明人： Ceren AYDIN , Patrick BANNON , Penelope MARKATOU , Dennis MURRAY , Rahul MITAL , Eric Darvin THOMAS
CPC分类号： B01D53/9418 , B01D53/9495 , F01N3/208 , B01D2255/1023 , B01D2255/50
摘要： Methods and systems related to an exhaust gas treatment system including, in order:
(i) a first means for injecting a nitrogenous reductant;
(ii) a first selective catalytic reduction (SCR) catalyst;
(iii) an ammonia slip catalyst (ASC); and
(iv) a second selective catalytic reduction (SCR) catalyst,
wherein the ASC comprises an SCR catalyst and a supported palladium (Pd) component.-
公开(公告)号：US11904305B2
公开(公告)日：2024-02-20
申请号：US17662377
申请日：2022-05-06
发明人： Daniel Avis , Alexander Nicholas Michael Green , Matthew Eben Harris , Carmelo Iacono , Caitlin Jenkins , Alanna Murphy
CPC分类号： B01J29/783 , B01D53/9418 , F01N3/2803 , B01D2255/2065 , B01D2255/2073 , B01D2255/20761 , B01D2255/50 , F01N2370/04
摘要： A catalytic composition for treating a NOx-containing exhaust gas, wherein the composition comprises a copper-substituted zeolite comprising: i) Ce in a total amount of about 0.1 to about 200 g/ft3; and ii) Mn in a total amount of about 0.1 to about 200 g/ft3.
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