A catalytically active filter for use in hot gas filtration to simultaneously remove solid particles and one or more undesirable compounds from a hot gas stream is partly or fully impregnated with a suitable catalyst. The compounds are selected from HCN, arsenic, organic sulfur compounds and carbonyls. The filter is prepared by making an impregnation liquid, which comprises a catalytically effective amount of at least one active metal and an oxide support, impregnating the filter substrate with the impregnation liquid by dipping it in the liquid or spraying it with the liquid to control the amount of liquid and drying and optionally calcining the impregnated filter.

Embodiments of the present invention include systems and methods for providing a filter that is sealed solely with mechanical forces. The filter may be a high pressure filter used in semiconductor manufacturing. In various embodiments, the filter includes a housing with an angled end and a filter element disposed inside the housing. The filter further includes a fluid fitting with an angled side. The angled side of the fitting has a different angle than the angled end of the housing. The filter also includes a compression collar fitted over the housing to compress the housing and the fitting. The result is a filter that may be used as a high-pressure fluid restrictor. The filter uses only mechanical seals to provide leak-proof highly filtered fluids in which impurities, contaminants and particulates are removed.

An air filter cartridge (1) for an air intake system for a vehicle engine extends along a main axis (X-X). The air filter cartridge includes a filter element (5), suitable to filter the air sucked through the filter element and having extension along the main axis (X-X) and an internal structure (3) that extends inside of the filter element (5). The internal structure (3) identifies a plurality of ducts (30) fluidically independent from each other through which the filtered air flows separately. Each duct (30) extends between an inlet mouth (31), placed in proximity of a respective filter element portion (51), and an outlet mouth (32) placed in proximity of the head element (2) in such a way as to induce the intake of air through each duct (30) through the respective portion of the filter element (51).

A system for filtering a gas-solids mixture, comprises: a housing a separating body dividing the housing in a raw gas chamber and a clean gas chamber, the raw gas chamber being accessible via an inlet for the gas-solids mixture and the clean gas chamber comprising an outlet for discharging a cleaned gas; a number of filter elements suspended from the separating body; lower ends of the filter elements being connected to a support grid the support grid comprising a number of arms; one or more cleaning elements provided on the arms of the support grid for cleaning thereof.

Apparatus (1) for producing nonwoven fabrics, comprising: a spinneret (2) comprising an extrusion surface (2a) having at least one first group (4) of extrusion holes (3) and a second group (5) of extrusion holes (4); cooling elements (15, 15); suction elements (7, 8, 9, 10, 11, 12, 13, 14); drawing elements to draw said filaments (100); wherein said suction elements (7, 8, 9, 10, 11, 12, 13, 14) comprise a plurality of first suction channels (7) forming corresponding openings (7a) on said extrusion surface (2a), which are arranged between the first group (4) and the second group (5) of extrusion holes (3), said first channels (7) being fluidically connected to a first chamber (8) made in said spinneret (2), the suction elements (7, 8, 9, 10, 11, 12, 13, 14) comprising one or more second suction channels (9) configured to suction gas from said first chamber (8).

Chemical systems and methods for synthesis gas (syngas) production relying on pyrolysis gases containing a pyrolysis carbon product and pyrolysis-derived hydrogen from a pyrolysis reactor that pyrolyzes a hydrocarbon feedstock. A high-temperature carbon separation mechanism separates the pyrolysis carbon product from the pyrolysis gases while maintaining their temperature above 800? C. A carbon dioxide source provides a gas stream primarily made up of a carbon dioxide gas. The hot pyrolysis gases containing pyrolysis-derived hydrogen and the carbon dioxide gas are sent to a reverse water gas shift reactor to react the pyrolysis gases with carbon dioxide to form the syngas. The syngas thus formed in the reverse water gas shift reactor can be used in many types of downstream systems and applications, including in reducing a metal oxide such as iron ore or other metal oxide to obtain a metal oxide reduction product. Recycling and heat exchange are provided for achieving further system efficiencies.

A filter cartridge has a filter medium that is provided at least on an end face with a flange that serves for the installation of the filter cartridge in a filter arrangement, whereby the flange has a radial flange and a support section, whereby the support section extends in the lengthwise direction of the filter cartridge.

The present invention relates to a modular filter element comprising a first elongate hollow body, a second elongate hollow body and connection means for connecting the first elongate hollow body to the second elongate hollow body, wherein the connection means comprises a connection member that extends into a lower wall of the first elongate hollow body and into the upper wall of the second elongate hollow body to provide a gas-tight seal between the first elongate hollow body and the second elongate hollow body.

Methods and apparatus to treat exhaust streams are disclosed. A disclosed example treatment device to treat a carbon monoxide-containing exhaust stream includes a conversion device to convert carbon monoxide to carbon dioxide, where the energy released in the conversion is used to supply thermal energy and/or electrical energy. The example treatment device also includes a cleaning device to clean the exhaust gas stream to be provided to the conversion device, where the cleaning device is provided upstream in an inlet of the conversion device.

The invention first relates to an air filter attachment (4) for a turbomachine, in particular a side channel compressor, comprising a housing, comprising a filter material (8) arranged in a housing interior, and comprising an inlet (9) and an outlet (10) which are formed in the housing, which have a free opening cross section, and through which air is suctioned. The aim of the invention is to advantageously design a turbomachine comprising an air filter attachment. This is achieved in that the housing interior that has the filter material (8) extends laterally relative to the opening cross section of the inlet (9) and/or the outlet (10) in a non-uniform manner and in any case in a direction by a magnitude of 1 or more times the dimension from a central axis (M) of the respective opening cross section to a periphery of the opening cross section in the direction. The invention further relates to a turbomachine, in particular a side channel compressor, comprising such an air filter attachment. Additionally, the invention relates to a filter part (12, 19) consisting of a pleated filter material (8) or a circumferential filter wall (21) which is connected to a base part (22) and which consists of a filter material.