Patent classifications
B01D2273/20
Catalytic hot-gas filtration of biomass pyrolysis vapors
The present disclosure relates to a device that includes a filter element and a catalyst, where the filter element is configured to remove particulate from a stream that includes at least one of a gas and/or a vapor to form a filtered stream of the gas and/or the vapor, the catalyst is configured to receive the filtered stream and react a compound in the filtered stream to form an upgraded stream of the gas and/or the vapor, further including an upgraded compound, and both the filter element and the catalyst are configured to be substantially stable at temperatures up to about 500° C.
Direct biochar cooling methods and systems
Apparatus and associated methods relate to cooling hot biochar based on applying cool gas directly to the hot biochar. The gas may be steam comprising water vapor. Biochar may be cooled in a cooling chamber by cool steam injected into a steam loop configured to cool the steam. The biochar cooled with steam may be dried in a drying chamber by dry gas injected from a gas loop. The gas may be hydrocarbon gas. Biochar may be heated in a processing chamber. Heated biochar may be cooled in a cooling chamber by cool hydrocarbon gas injected to the cooling chamber. Biochar in the processing chamber may be heated with heat recovered from cooling. Filtered byproducts and tail gas may be recovered from the cooling chamber. Tail gas may be recycled. Various direct biochar cooling implementations may produce biochar having enhanced carbon content, increased surface area, and a hydrogen stream byproduct.
Filter with perforated separator plates
A filter for cleaning air includes: a housing; layers of a filter medium, the layers being arranged in the housing; and separator plates. One separator plate is arranged between each two layers of the filter medium. The separator plates are provided with a perforation. In an embodiment, the separator plates are fluted, corrugated, or folded.
Method and apparatus for gasifying carbon-containing material
An apparatus and a method for gasifying carbon-containing materials in which the material for gasification and oxygen, usually in the form of air, are supplied to a gas generator where the gasification takes place in a fixed bed reactor. The product gas is drawn off via a product gas line and introduced into a hot gas filter. A filter, preferably provided with filter candles, removes solids such as particles not yet gasified, ash and foreign bodies, while clean gas passes through and is taken off via a clean gas line. An outlet is provided in the bottom region of the hot gas filter to remove residual solids. The hot gas filter is supplied through a line with oxygen, preferably in the form of air, in its middle height region, between the filter bottom and the outlet.
Membrane method processing system and process for high-concentration salt-containing organic waste liquid incineration exhaust gas
A membrane method processing system and process for a high-concentration salt-containing organic waste liquid incineration exhaust gas is described. The system consists essentially of a waste liquid incinerator (I), a gas-solid separator (II), a heat exchanger (III), an air blower (IV), an anti-caking agent storage tank (V), a membrane method dust cleaner (VI), an induced draft fan (VII), a check valve (VIII), and a desulfurization tower (IX). The present invention introduces the dust collecting membrane into the tail gas treatment system and utilizes the small pore size and high porosity of the dust collecting membrane to prevent inorganic salt particles from entering the internal of the filter material and agglomerating there. When the humidity of the gas entering the dust collector increases during the dust removing process, the anti-caking agent is also introduced into the tail gas treatment system to change the surface structure of the inorganic salt crystal to prevent the crystal from agglomeration.
High-temperature dust removal and filtering apparatus, high-temperature dust removal and filtering system, and continuous dust removal and filtering method
A high-temperature dust removal and filtering apparatus, comprising a set of high-temperature dust removal and filtering devices and a pre-heating apparatus and regeneration apparatus provided for the high-temperature dust removal and filtering devices; a high-temperature dust removal and filtering system, comprising two or more sets of high-temperature dust removal and filtering devices, and a pre-heating apparatus and regeneration apparatus provided for the high-temperature dust removal and filtering devices; a continuous dust removal and filtering method consisting of two or more sets of high-temperature dust removal and filtering devices and a pre-heating apparatus and regeneration apparatus provided for the high-temperature dust removal and filtering devices. Said method is implemented with a high-temperature dust removal and filtering system capable of switching. The high-temperature dust removal and filtering system always keeps one or more sets of high-temperature dust removal and filtering devices in a normal filtering state.
Soot particle filter and method for operating a soot particle filter
In order to provide a flow device which is of simple construction and is operable reliably and in an energy-efficient manner, it is proposed that the flow device comprise the following: a plurality of flow segments which each comprise one or more flow bodies and through which a stream of raw gas is arranged to flow for removing impurities in a cleaning mode, wherein the stream of raw gas is arranged to be supplied to the flow segments via a raw gas supply system and wherein a stream of clean gas that has been cleaned by means of the flow segments is removable from the flow segments by means of a clean gas removal system; a regeneration device for regenerating the flow segments, wherein the regeneration device comprises a docking device for establishing a temporary connection between one or more flow segments that are to be regenerated on the one hand and a heating device and/or a flushing device of the regeneration device on the other hand.
PLEATED FILTER DESIGNS AND COMPONENTS THEREFOR FOR ELEVATED TEMPERATURE APPLICATION
A filter includes a pleated filter element having a fibrous support layer and a filtration layer bonded to the fibrous support layer. The fibrous support layer and the filtration layer are both in pleated form to provide a plurality of pleats. A cured stiffening agent is applied to the fibrous support layer, and the pleated form is maintained. The fibrous support layer is bonded to the filtration layer by other than the cured stiffening agent.
CATALYTIC HOT-GAS FILTRATION OF BIOMASS PYROLYSIS VAPORS
The present disclosure relates to a device that includes a filter element and a catalyst, where the filter element is configured to remove particulate from a stream that includes at least one of a gas and/or a vapor to form a filtered stream of the gas and/or the vapor, the catalyst is configured to receive the filtered stream and react a compound in the filtered stream to form an upgraded stream of the gas and/or the vapor, further including an upgraded compound, and both the filter element and the catalyst are configured to be substantially stable at temperatures up to about 500 C.
COMPOSITE CERAMIC FILTER MATERIAL FOR HIGH TEMPERATURE FLUE GAS DUST REMOVAL
The invention provides a composite ceramic filter material for high temperature flue gas dust removal, wherein the filter material is prepared by the following method: provide corn stalk raw material and silicon powder; crush the corn stalk raw material and pyrolyze the crushed corn stalk raw material to obtain carbonized corn stalks; spread silicon powders on, the corn stalk raw material to obtain mixed powder, perform first high-temperature heat treatment on the mixed powder to obtain silicon carbide powder; add silicon carbide powder into ethanol; add PVB to the ethanol suspension of silicon carbide to obtain a dispersion solution of silicon carbide; perform surface treatment on the aluminum alloy base material; porous silicon carbide film is formed on the surface of the surface treated aluminum alloy by air spraying technology; perform pre-sintering on the porous silicon carbide film; perform sintering on the pre-sintered porous silicon carbide film.