Patent
Catalysts for the purification of exhaust gas
Hiroyuki Kanesaka,Naoki Kachi +1 more
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TLDR
A catalyst for the purification of exhaust gas comprises a first coating layer of activated alumina containing at least one of Pt, Pd and Rh, a second coating layer consisting no noble metal and a third layer of zeolite ion exchanged with Cu or Co and develops excellent purification performance in lean-burn atmosphere after engine aging treatment as mentioned in this paper.Abstract:
A catalyst for the purification of exhaust gas comprises a first coating layer of activated alumina containing at least one of Pt, Pd and Rh, a second coating layer of activated alumina containing no noble metal and a third coating layer of zeolite ion-exchanged with Cu or Co and develops excellent purification performance in lean-burn atmosphere after engine aging treatment.read more
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Exhaust gas purifying catalyst
TL;DR: An exhaust gas-purifying catalyst includes a substrate, and a catalytic layer formed on the substrate using slurry containing a precious metal, alumina, an oxygen storage material and a sulfate of an alkaline-earth metal having an average particle diameter falling within a range of 0.01 to 0.70 μm, the average particle size being obtained by observation using a scanning electron microscope as mentioned in this paper.
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Process for purifying exhaust gases
TL;DR: In this article, a support for purifying carbon monoxide, hydrocarbons and nitrogen oxides in exhaust gases at the stoichiometric point or in oxygen-rich atmospheres is presented.
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Catalytic converter for cleaning exhaust gas
Hirohisa Tanaka,Isao Daihatsu Motor Co. Ltd. Tan,Koji Daihatsu Motor Co. Ltd. Yamada,Mari Daihatsu Motor Co. Ltd. Yamamoto,Shinji Matsuura,Yasunori Sato +5 more
TL;DR: A catalytic converter for cleaning exhaust gas includes a heat resistant support, and a catalytic coating formed on the heat-resistant support as discussed by the authors, which consists of Pd-carrying particles of a cerium complex oxide, Pt & Rh-carving particles of zirconium complex oxides, and particles of heat resistant inorganic oxide.
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TL;DR: In this article, a polymer matrix and sequestering agents are used to remove particulate and gaseous organic and inorganic materials from a fluid stream, such as an air stream.
References
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Patent
Catalyst for exhaust gas purification and method for exhaust gas purification
Toshio Takahata,Hideharu Ehara,Fuminori Yamanashi,Katsuhiro Shibata,Fumio Abe,Tomoharu Kondo,Junichi Suzuki,Naomi Noda +7 more
TL;DR: In this paper, a monolith carrier, at least one first catalyst layer having a three-way catalytic activity, provided on the carrier, and a second catalyst layer with a hydrocarbon purification activity provided by the first layer.
Patent
Monolithic catalyst for purifying exhaust gas
TL;DR: In this article, the authors proposed a method to use the title catalyst without any waste by providing a plugging member on the end surface of the monolithic catalyst carrier on the inflowing side of exhaust gas.
Patent
Catalyst for clarifying exhaust gas
TL;DR: In this paper, the authors proposed a method to improve clarification capacities for NOx, CO, and nitrogen oxides in an exhaust gas out of an internal combustion engine by forming a catalyst, wherein a carrier is first coated with a catalyst layer composed of catalyst components for oxidation reaction and further coated with an additional layer consisting of copper and zeolite.
Patent
Waste gas cleaning catalyst
TL;DR: In this paper, a waste gas cleaning catalyst provided at the exhausting path for waste gas, a primary catalyst layer 3 consisting of a catalyst containing a noble metal which cleans NOx when temp. of waste gas is low, and reacts with hydrocarbon, is formed on a carrier 2.