摘要:
The present invention addresses the problem and purpose of providing a honeycomb structure that has a sufficiently high strength and is excellent in endurance, and a catalyst for cleaning an exhaust gas using the same that is excellent in resistance to sulfur oxide (SOX). The honeycomb structure of the present invention is one consists of a flat inorganic fiber sheet comprising an inorganic fiber sheet having supported thereon an inorganic binder and zeolite, and a corrugated inorganic fiber sheet comprising an inorganic fiber sheet having supported thereon the same inorganic binder and zeolite, which are alternately combined with each other, wherein it is characterized in that the zeolite has a particle diameter (i.e., a median particle diameter, D50) of from 0.5 to 10.0 µm.
摘要:
Provided are a holding material for a gas treatment device, which is inexpensive, has a simple structure, and exhibits high holding force, a gas treatment device, and a method for manufacturing the same. A holding material for a gas treatment device according to the present invention is a holding material (10), which is a holding material to be arranged, in a gas treatment device (1) including a treatment structure (20) and a casing (40) for housing the treatment structure (20), between the treatment structure (20) and the casing (40), the holding material (10) including silica fibers and an alumina sol in an amount of 3 parts by mass or more in terms of a solid content with respect to 100 parts by mass of the silica fibers.
摘要:
Die Erfindung betrifft eine Vorrichtung zur Reinigung eines Abgasstroms einer Brennkraftmaschine eines Kraftfahrzeuges, insbesondere eines Nutzfahrzeuges, mit einem eine Einströmseite und eine Abströmseite aufweisenden Partikelabscheider, der in vorgegebenen Abscheiderbereichen eine katalytisch aktive Oberfläche zur Reduzierung von Stickoxiden aufweist. Erfindungsgemäß weist der Partikelabscheider (8) einen Abgaspartikel (21), insbesondere Rußpartikel, definierter Größenordnung ein- und/oder anlagernden einströmseitigen Abscheiderbereich (6) auf, der einen abströmseitigen Abscheiderbereich (17, 17') wenigstens bereichsweise ringförmig umgibt und/oder in seinem Innenhohlraum (13) aufnimmt, wobei die katalytisch aktive Oberfläche (7) zur Reduzierung von Stickoxiden am bzw. im abströmseitigen Abscheiderbereich (17, 17') vorgesehen ist.
摘要:
Thermal insulation comprises sol-gel formed fibers comprising 10 to 99 mol % of a refractory base composition, and 1 to 90 mol % of a component selected from earth metal oxides, alkali metal oxides, and mixtures thereof, and wherein said alkaline earth metal oxides if present comprise one or more of calcium oxide, strontium oxide, barium oxide or a mixture thereof. The refractory base comprises SiO2 and Al2O3.
摘要:
A catalytic converter as subject of the invention comprises fibers, which fibers have a fiber surface. The converter further comprises catalytic material, substantially all of this catalytic material is present on the fiber surface. The fibers are present in the catalytic converter as discrete fibers. A method for making the catalytic converter comprises providing a bundle of discrete fibers, coating them with catalytic material and inserting the coated bundle into a can.
摘要:
An improved, efficient, and regenerable exhaust emission filter and filter system are provided which incorporate the use of an inorganic, non-woven fiber filter element. The filter is able to capture exhaust pollutants and particulates through the interwoven nature of the filter element and due to area enhancements applied to the filter element including microscopic enhancements. The filter has an improved life and is able to combust a greater percentage of trapped particulates due to the high temperatures the filter element can withstand. The filter element if formed from a non-woven fiber block which is machined or shaped into a filter foundation. The filter element can have a multitude of coatings and catalysts applied and can be wrapped in insulation and a casing. The improved exhaust emission filter is particularly useful for diesel engine exhausts.
摘要:
The invention relates to a catalytic device with internal heat exchange that among other things can be used for vehicles with an internal combustion engine or for stationary engines where there is a certain amount of unburned gas components in the exhaust that can be converted in the catalyst. By the invention it is obtained that the maximum temperature in the catalyst is always nearly constant whatever the inlet temperature. Hereby, the catalyst can be designed to work at a very specific temperature, by which it is possible, partly to ensure a better and safer burnout of the unburned components, and partly to save expenses for catalyst materials. The exhaust gas is guided through the catalyst by at least three passage sections that have a mutual internal heat exchange. In the main reaction passage section there are catalytic materials of one or several kinds, in which the gas can react, and in which the gases heat exchange with the succeeding main heat transfer passage section passage.
摘要:
An electrical contact system (11) is provided which comprises an electrically conductive porous fleece (12) and one or more contact bodies (13, 14). The electrically conductive porous fleece (12) and the contact bodies (13, 14) are sintered to each other, so avoiding hot spots during use of the element.