摘要:
A catalyst for reducing nitrogen oxides, carbon monoxide and hydrocarbons, the noxious components in exhaust gases from internal combustion engines, etc., comprising: a porous carrier of ceramic selected from the group consisting of alumina and alumina-magnesia spinel; and a catalyst ingredient supported thereon consisting essentially of zirconium oxide, cerium oxide and a metal selected from the group consisting of platinum, palladium and mixtures thereof.
摘要:
A catalyst for reducing nitrogen oxides, carbon monoxide and hydrocarbons, the noxious components in exhaust gases from internal combustion engines, etc., which comprises: a carrier having a substructure of refractory material in the form of a honeycomb structure, etc., and a porous layer of a powder formed on the surface thereof selected from the group consisting of a powder of zirconium oxide and a mixed powder of zirconium oxide powder with at least one powder selected from the group consisting of alumina, alumina-magnesia spinel and cerium oxide; and a catalyst ingredient supported thereon consisting of cerium oxide and a metal selected from the group consisting of platinum, palladium and mixtures thereof.
摘要:
A catalyst for reducing nitrogen oxides, carbon monoxide and hydrocarbons, the noxious components in exhaust gases from internal combustion engines, etc., comprising: a porous carrier consisting essentially of zirconia and at least one oxide selected from the group consisting of cerium oxide, manganese oxide and iron oxide; and a metal as a catalyst ingredient supported thereon selected from the group consisting of platinum, palladium and mixtures thereof.A method for producing the aforesaid catalyst.
摘要:
A self-heating type ignition plug according to the present invention includes a base portion having a fixing portion formed on an outer wall thereof and a terminal insulately provided therein and connected to an electrical source; an ignition means, integrally connected to the base portion, having an ignition surface formed on a wall surface thereof and composed of a catalyst comprising a transition material, thereby to come in contact with the fuel; and a heating means having a resistive exothermic element connected to the terminal of the base portion, the resistive exothermic element being provided adjacent to the ignition surface within the ignition means, whereby the fuel may be ignited and burned as a whole by the ignition surface of the catalyst which is maintained to a preset temperature due to the oxidation reaction of the catalyst and the fuel being in contact therewith after the heating means is deenergized.
摘要:
A catalyst for removing nitrogen oxide, carbon monoxide and hydrocarbon impurities from exhaust gases comprising a porous carrier consisting essentially of alumina-magnesia spinel; and a metal supported thereon selected from the group consisting of platinum, palladium and mixtures thereof.
摘要:
A catalyst for synthesizing hydrocarbons such as butane etc. by hydrogenation of carbon monoxide, which comprises cobalt and cerium oxide as catalytic components supported on a conventional porous material, or cobalt as a catalytic component and cerium oxide as a support thereof. This catalyst can produce C.sub.1 or more hydrocarbons and especially C.sub.5 or more hydrocarbons in good yields.
摘要:
The exhaust gases, such as of an internal combustion engine are contacted with a catalyst containing copper in the presence of hydrocarbons in an oxidizing atmosphere, whereby nitrogen oxides are reduced from the exhaust gases. Then, the exhaust gases are preferably contacted with an oxidizing catalyst. The former catalyst contains copper loaded on a porous support formed from alumina, silica, silica-alumina or zeolite or mixture thereof. The support is preferably a monolithic body having a first portion loaded with copper and a second portion loaded with a metal or metals defining the oxidizing catalyst.
摘要:
An exhaust gas purifying catalyst of this invention is a catalyst for mainly removing nitrogen oxides contained in exhaust gases, comprising: crystalline copper silicate expressed by the following composition formula;M.sub.n+m (Cu.sub.n Al.sub.m Si.sub.96-n-m O.sub.192).16H.sub.2 O, where M denotes one of sodium (Na) and potassium (K), and n+m
摘要:
An image forming apparatus, which forms a predetermined image on each recording paper of a plurality of recording papers and ejects each recording paper therefrom through a feed path, includes a body and a first lid. The first lid is pivotably provided on the body so as to pivot from a closing position to an opening position, and the feed path is mostly exposed when the first lid is located at the opening position. The body includes photosensitive member, a latent image forming device, and a developing device, whereas the first lid includes merely a transfer device so that the first lid is light enough to be opened easily. In addition, a jammed paper can be removed easily from the feed path because the feed path is mostly exposed when the first lid is located at the opening position.