Abstract: An aftertreatment module for use with an engine is disclosed. The aftertreatment module may include a housing having an inlet configured to direct exhaust in a first flow direction into the aftertreatment module, and an outlet configured to direct exhaust in the first flow direction out of the aftertreatment module. The aftertreatment module may also include a catalyst bank separating the inlet from the outlet. The catalyst bank may have a face disposed at an oblique angle with respect to the first flow direction. The oblique angle may create an inlet passage extending from the inlet to the catalyst bank and having a decreasing cross-sectional area, and an outlet passage extending from the catalyst bank to the outlet and having an increasing cross-sectional area.

Abstract: An exhaust gas purifying catalyst includes a monolithic substrate (2), and a transition metal oxide layer (3) formed in the monolithic substrate (2). The transition metal oxide layer (3) contains transition metal oxide powder including: transition metal oxide particles (10); a first compound (20) on which the transition metal oxide particles (10) are supported; and a second compound (30) that surrounds a single body or an aggregate of the transition metal oxide particles (10) and the first compound (20).

Abstract: Disclosed is a reactor, a retained catalyst structure, and a method for increasing the rate of decomposition of polysulfides and removal of hydrogen sulfide in liquid sulfur. The reactor, the retained catalyst structure, and the method include a retained catalyst structure arranged and disposed for contacting a first stream and a second stream in a reactor including a catalyst. The catalyst increases the rate of decomposition of polysulfides and facilitates the removal of hydrogen sulfide in the liquid sulfur of the first stream with the second stream. The first stream includes liquid sulfur containing polysulfides and dissolved hydrogen sulfide. The second stream includes an inert gas or a low oxygen-containing gas.

Abstract: A honeycomb structure whose shape is composed of plural honeycomb segments being bonded integrally by means of a bonding material; the honeycomb structure having inner partition walls with plural first pores and defining respective cells serving as flow channels for exhaust gas, outer circumferential wall having second pores, and surrounding the inner partition walls, and inner partition walls having third pores and contacting with a processed outer circumferential surface becoming an outermost circumference through processing of an outer circumferential portion. A filling composition for the second pores and a filling composition for the third pores having the specified functions respectively are also provided.

Abstract: The invention relates to a device for the catalytic treatment of exhaust gases of motor vehicles which comprises a catalyst substrate designed as a hollow cylinder, an inlet-side and an outlet-side gas baffle and an outer wall, wherein the gas baffles enclose the catalyst substrate and the outlet-side gas baffle and the catalyst substrate form a first cavity into which an exhaust-gas stream can be fed, passing through the catalyst substrate and entering a second cavity which is surrounded by outer wall, gas baffles and catalyst substrate, wherein the outlet-side gas baffle has gas vents, and wherein the recessed part of the outlet-side gas baffle is beaded, with the result that the catalyst substrate is fixed. The invention also relates to a process for the production of the device according to the invention and its use, plus a method for cleaning exhaust gases of motor vehicles.

Abstract: Using zeolites as the active adsorbent, adsorbent laminates have been fabricated with various sheet supports. These adsorbent laminates have been successfully operated for oxygen enrichment at high PSA cycle frequencies, such as upwards of at least 150 cycles per minute. Methods for making suitable adsorbent laminates are described. The methods generally involve forming a slurry comprising a liquid suspending agent, an adsorbent and a binder. Laminates are made by applying the slurry to support material or admixing support material with the slurry. The slurry can be applied to support material using a variety of techniques, including roll coaters, split roll coaters, electrophoretic deposition, etc. One method for making laminates by mixing support material with the adsorbent slurry comprises depositing the slurry onto a foraminous wire, draining the slurry material, and pressing the material to form a ceramic adsorbent paper. Spacers can be formed on adsorbent laminates to space one laminate from another.

Abstract: Methods are disclosed for providing a library of composite or novel composition samples on a support. The method involves depositing one or more components as concentration gradients on the surface of the support. The concentration gradients are placed on the support in the form of superimposed triangles which allow ready formation of composite or composition samples containing three or more components. The samples can be removed from the support by drilling out portions of the coated support so as to yield individual tablets containing the support with one or more component layers thereon. By using this method, a vast number of samples can be made.

Abstract: An oxidation-catalytic separation device for removing oil and volatile organic components from pressurized gases of a compression system has, proceeding from the inflow side of a tank which contains an oxidation catalyst, at least two chambers with different diameters and/or lengths. In this way, the chambers can also be matched to the desired main functions with respect to geometrical conditions, especially a first chamber with a smaller diameter being intended for aerosol separation, and a second chamber of greater diameter being intended for residual vapor catalysis. Even for variably operated compression systems, the pressurized gases can be reliably purified using this oxidation-catalytic separation device such that the required and desired degree of purity of a high-quality pressurized gas is obtained.

Abstract: A method for the production of a converter-carrier body having a metallic honeycomb body made of a plurality of metal layers, especially smooth layers and corrugated layers, the layers having layer ends, such that an outer shape of the honeycomb body is formed by the layer ends. At least one stack is produced having several alternately disposed metal layers that are structured such that channels are formed for a fluid to flow through. The at least one stack is transformed into a honeycomb body having a cylindrical form. The honeycomb body is deformed from the cylindrical form so that an outer shape that deviates from the cylindrical form is produced. Additionally, the invention relates to a corresponding converter-carrier body and a tool for the production thereof.

Abstract: A microporous paper filter (10) for particulates emitted together with the exhaust gases of internal combustion engines, made in the form of a folded up sheet to form a “Greek key” i.e. having several filtering layers (13) placed substantially parallel, connected by means of folds (14), the layers (13) being separated and maintained equidistant through the interposition of spacers (20) each comprising at least one corrugated paper sheet (21, 22) or pleated paper (23).

Abstract: The present invention provides an exhaust gas purifying filter that has an increased contact area, between a catalyst supported on the dividing walls of a honeycomb structural body and particulate matter deposited thereon, and can improve the capacity of the catalyst to oxidize the particulate matter, and a method of manufacturing the same. According to the present invention, the exhaust gas purifying filter 1 comprising the honeycomb structural body 10 made of ceramic and the catalyst 2 supported on the surface of the dividing walls 11 of the honeycomb structural body 10 has void ratio, of the dividing wall 11 of the honeycomb structural body 10, in a range from 55 to 80%, and the proportion of surface pores is 20% or higher.

Abstract: Monolithic metallic catalyst substrates offering improved heat conductivity are provided from metal powder extrusion batches of copper, tin, zinc, aluminum, iron, silver, nickel, and mixtures and alloys thereof by extrusion through a honeycomb extrusion die followed by drying and firing in a two stage firing process to oxidize organic extrusion batch components, remove residual oxides from the porous wall structure, and consolidate the metal powders to strong, integral honeycomb support structures.

Abstract: A method and system for the in situ synthesis of a combinatorial library including impregnating a first component with a second component. The method and system advantageously may be employed in the synthesis of materials for screening for usefulness as a catalyst.

Abstract: A method and device for loading a catalyst into a chamber. The catalyst loading is well suited for production of hydrogen producing microreactors. The catalyst is coated onto a strip which is mountable within the chamber.

Abstract: A honeycomb body made from a ceramic material with improved radial pressure resistance that is of cylindrical shape and features a first and a second end face and a cylindrical shell and that is traversed from one end face to the other by axially parallel channels formed by channel walls and distributed across the cross section of the honeycomb body in a regular grid pattern, in which design an outer marginal zone of the honeycomb body, the thickness of which amounts to several channel diameters, encloses a central area. The increase in radial pressure resistance of the honeycomb body is achieved by reinforcing the ceramic material of the cylindrical shell and of the channel walls in the outer marginal zone of the honeycomb body by depositing on or in it one or several inorganic substances for the purpose of increasing its mechanical stability.

Abstract: A method and system for the in situ synthesis of a combinatorial library including impregnating a first component with a second component. The method and system advantageously may be employed in the synthesis of materials for screening for usefulness as a catalyst.

Abstract: A conical honeycomb body and method for producing the honeycomb body that avoids the deformations occurring when fixing a conical lamellar body in a conical casing tube is described. Clamping aids are disposed in the casing tube at a distance from its openings and are configured such that at least in sections they have a ring shape. The clamping aids allow for the economical production of conical honeycomb bodies having greater mechanical strength. Their variants make it possible to influence the function of the edge area of the conical honeycomb body in a targeted manner. Especially beading, necking and/or rings achieve, for example, a barrier effect so that no fluids are able to circulate in the channels situated in the edge area of the casing tube. The openings of the casing tube are free of inserted elements and can therefore be easily welded to other components of the exhaust-gas system.

Abstract: The present invention is to provide a metal oxide sintered structure having a homogeneous catalyst supporting ability, and a production method therefor. Hardly reducing oxide powders and reducing oxide powders are mixed, and then kneaded with a binder. By extrusion molding, a structure comprising channels (fluid communicating holes) is formed. Then, after heating reaction and solid solution, it is reduced under an atmosphere containing a hydrogen. Thereby, a metal oxide sintered structure having the fluid communicating holes, with the metal particles precipitated on the surface is produced. The structure is suitable for use as a catalyst for a fuel cell, or the like.

Abstract: A catalyst carrier body for an exhaust system of an internal combustion engine, especially of a motor vehicle, includes a matrix having an inflow surface, an outflow surface, a periphery, and a multiplicity of catalytic surfaces around which exhaust gas can flow. The catalytic surfaces have front regions and form flow-through passages. The outflow surface has a shape, at least in an inner region thereof, causing the front regions to be exposed and not covered outwardly, toward the periphery, by others of the catalytic surfaces. The exposed front regions have lengths, at least in a partial region of the outflow surface, amounting to from 55% to 90% of the length of the flow-through passages, for increasing an outward dissipation of heat. As a result, outwardly open heat radiating areas are guaranteed for an improved emission of heat to the surroundings or into the exhaust system.

Abstract: A process for the recovery of sulphur trioxide, solutions of sulphuric acid, or organic derivatives thereof, using organic compounds and/or supercritical fluids, and catalyst. The process comprises the steps of passing a mixture of SO2 and an oxygen-containing gas over an activated carbon catalyst at a temperature of at least 15° C. and preferably at a pressure of 1-200 atmospheres, and stripping the activated carbon with either (i) a liquid organic compound selected from the group consisting of ketones, ethers, decalin, tetrahydrofurans, sulpholanes, glymes and formamides and which is non-reactive with sulphur trioxide or sulphuric acid, or (ii) a liquid organic compound capable of forming organic sulphates or sulphonates by reaction with sulphur trioxide or sulphuric acid. The process may be used to obtain sulphuric acid, or organic sulphates or sulphonates.

Abstract: A pollutant treating device especially adapted for motor vehicles in which a housing containing a catalyst composition for treating pollutants is positioned within the normal flow pattern of ambient air within the motor vehicle and is preferably removably placed within a support, such as a bracket assembly where the housing can be readily removed and replaced and/or reused.

Abstract: A catalyst carrier for exhaust systems in internal combustion engines, the catalyst carrier being made of wound metal foils and equipped with a mantle consisting of at least two portions (12, 13) having bent-out edges (16, 17), the portions being clamped around the catalyst carrier with the bent-out edges in mutual contact and joined to form longitudinal flanges (18) for instance by means of welding, upon which the flanges are usable to prevent rotation or displacement of the catalyst carrier when this is mounted in a canning included in an exhaust system.

Abstract: A metallic catalyst support of honeycomb construction easy to manufacture and having a large strength is obtained in the invention by bonding at least one predetermined part of an end face opening of a core unit in axial direction across the end face opening.

Abstract: A Fischer-Tropsch catalyst for the conversion of synthesis gas into Fischer-Tropsch products includes a stationary Fischer-Tropsch catalyst having a voidage ratio greater than approximately 0.45 or 0.6 and may further have a catalyst concentration for a given reactor volume of at least 10 percent. A Fischer-Tropsch catalyst has a structured shape promoting non-Taylor flow and/or producing a productivity in the range of 200-4000 vol CO/vol. Catalyst/hour or greater over at least a 600 hour run of a Fischer-Tropsch reactor with the catalyst therein. A system for converting synthesis gas into longer-chain hydrocarbon products through the Fisher-Tropsch reaction has a reactor for receiving synthesis gas directly or as a saturated hydrocarbon liquid or a combination, and a stationary, structured Fischer-Tropsch catalyst disposed within the reactor for converting at least a portion of the synthesis gas into longer-chain hydrocarbons through Fischer-Tropsch reaction.

Abstract: A microcombustor which is submillimetric in critical dimensions. The invention relies upon solving quenching at submillimetric dimensions. Chemical and thermal quenching are inhibited by selection of materials having a low well depth below approximately 40 kCal/mole. This allows formation of a microcombustor having submillimetric combustion chamber. A preferred microcombustor is formed in a substrate structure. The preferred microcombustor includes a wafer stack of at least three wafers, a central wafer housing a combustion chamber. At least one inlet and outlet are included for the insertion of reactants and exhaust of a flame.