The present invention relates to a hot gas filtration system and a process for regenerating such a hot gas filtration system, said filtration system comprising a filter vessel, a tubesheet separating the interior of said filter vessel into a raw gas section and a clean gas section, and a plurality of filter elements. Said filter elements, arranged in two or more groups, are connected to the tubesheet with a clean end and extend with a raw gas portion into the raw gas section. Two or more plenum chambers are accommodated in the clean gas section and groupwise accommodate the clean gas ends of the filter elements, each of said plenum chambers comprising a gas exchange opening providing a direct fluid communication with the clean gas section. The hot gas filtration system furthermore comprises a blowback arrangement comprising a blowback gas reservoir and a blowback gas pipe for each group of filter elements, said blowback gas pipes having an outlet positioned in said clean gas section of the vessel, said outlet of the blowback gas pipes being directed at the gas exchange opening of the plenum chambers, said outlet of said blowback pipe having a free cross-sectional area of from about 10% to about 90% of the free cross-sectional area of said gas exchange opening.

An anti-clogging filter system for filtering a fluid containing large particles and small particles includes an enclosure with at least one individual elongated tubular filter element in the enclosure. The individual elongated tubular filter element has an internal passage, a closed end, an open end, and a filtering material in or on the individual elongated tubular filter element. The fluid travels through the open end of the elongated tubular element and through the internal passage and through the filtering material. An anti-clogging element is positioned on or adjacent the individual elongated tubular filter element and provides a fluid curtain that preferentially directs the larger particulates to one area of the filter material allowing the remainder of the filter material to remain more efficient.

A high efficiency, stepped-top cartridge filter with a separate flow transition insert for installation in a uniform circular or oblong hole of a baghouse tube sheet. The cartridge includes a tubular core supporting a tube of pleated filter media to form a pleat pack having a molded cap at its lower end A open-mouthed, molded top fitting includes an upper flange, a side wall and a stepped portion leading to the bore of the filter. The flow transition insert is pressed into the top fitting to create a seal with the hole in the tube sheet. The insert includes an aerodynamically contoured mouth leading to a bore corresponding to the bore of the filter and further defines an air passageway between the top fitting and the insert for supplying tertiary cleaning air to supplement the primary and secondary air flows during a cleaning cycle.

A sealing element (5) for a filter element (2) in a housing body (1) of a filtration device, preferably in a cross-flow filtration device. The sealing element (5) is of one-piece annular design and comprises a section for the sealing arrangement of the filter element (2) in the housing body (1) and a section for stop damping the filter element (2).

An air filtration assembly has a box having a wall having at least one outflow mouth, and a filtering cartridge insertable into the box and having at least two tubular filtering partitions and a plate group having a plate body extending with respect to an imaginary development plane and having a first face having at least one sealing profile, a second face having at least two abutment profiles, and at least one outflow opening for putting the tubular filtering partitions in fluid communication with the at least one outflow mouth. The box has a housing region. The plate group is housed in the housing region. The at least one sealing profile and/or the at least two abutment profiles are shaped or mutually positioned with respect to the imaginary development plane having vertical and longitudinal variable distances therefrom. The plate body is a single component made of an elastically yielding material, and is subjected to volume compression.

A dust filtering and collection system for filtering dust and other debris particles from an incoming dust laden air stream, such air stream generally being used for conveying granular material into or from a bulk tank trailer, a railroad car, or other conveying vehicle, the filtering system designed to be functioned by vacuum air pressure, operatively generated by a blower, to draw in the soiled air into the filter system, to cleanse such air for further use in the conveying of the granular material. The air flow may be reversed, to provide for a dislodging of any dust particles from the filtering system, and to cleanse the filter for further efficient usage of the system in conveying granular material into or out of the tank trailer, or other vehicle during usage. The filter system includes a pod of filter tubes encapsulated by a polymer header that mounts to a transverse plate that secures to the approximate upper end of the filter canister of the filtration system.

An autothermal process of concentric bubbling fluid double bed for the production of syngas by gasification with biomass steam, in the presence of a granular material includes: continuous gasification under stationary bed condition of said granular material in bubbling fluidisation regime of biomass with water vapour with thermochemical transformation of the fuel into raw syngas and char, the raw syngas including heavy hydrocarbons in the steam state and any harmful compounds in traces, in a first reaction volume; combustion in bubbling fluidised bed with air of the char and of auxiliary fuel in a second reaction volume; the transfer velocity of the granular material between the first and second reaction volumes being such that the thermal difference does not exceed 20 C.; separation from the raw syngas by hot filters; and elimination of any harmful compounds in traces.

A fiber bed assembly and mist eliminator system operable to collect a liquid phase from a gas stream has a fiber bed with first and second collection layers of dense collection media having randomly positioned fibers. An intermediate drainage layer disposed between and abutting the first and second collection layers has drainage media composed of a highly ordered geometric mesh structure having a high void fraction. The drainage layer forms a lateral drainage channel immediately downstream of the first collection layer and generally perpendicular to the gas flow direction, and the drainage layer is operable to drain the liquid phase collected by the first collection layer, in a lateral flow direction through the drainage layer.

A process for producing liquid hydrocarbon products from a solid feedstock includes feeding the solid feedstock and hydrogen to a first stage hydropyrolysis reactor having one or more deoxygenation catalyst, and the solid feedstock includes biomass, waste plastic, or a combination thereof. The process also includes hydropyrolysing the solid feedstock in the first stage hydropyrolysis reactor to generate a process gas stream having partially deoxygenated hydropyrolysis product, H.sub.2O, H.sub.2, CO.sub.2, CO, C.sub.1-C.sub.3 gases, and char and catalyst fines and feeding the process gas stream to a solid separation system having a hot gas filtration unit having a plurality of filter elements that may separate the char and catalyst fines from the process gas to generate a vapour phase product and a dust filter cake.

A fiberbed mist collector and method of use for filtering gas emissions having contaminants, including one or more unwanted gases that are produced during an asphalt concrete production process. The fiberbed mist collector includes a housing, a pre-filter area for receiving gases, a transition area for receiving gas emissions from the pre-filter area, a primary filter area provided with one or more primary filters, a liquid collecting chamber configured to collect liquid waste material falling from the primary filter area, a housing outlet, and an exhaust stack that receives gas emissions from the housing. A pre-filter is located between the pre-filter area and the transition area for filtering out particulate matter that is entrained with the gas emissions. Condensing filters are provided in the primary filter area to condense at least a portion of the gas emissions. An acid-impregnated filter removes at least one non-condensing gas from the gas emissions.