Abstract: An exhaust-gas treating apparatus, which includes an adsorption tower for removing various harmful substances in an exhaust gas using an adsorbent, a regeneration tower for releasing adsorbed substances from the adsorbent, a first transfer passage for transferring the adsorbent from the adsorption tower to the regeneration tower, a second transfer passage for transferring the adsorbent from the regeneration tower to the adsorption tower, a lock hopper connected to one end of the regeneration tower on a higher differential pressure side of a first differential pressure between an inside of the regeneration tower and an inside of the first transfer passage and a second differential pressure between the inside of the regeneration tower and an inside of the second transfer passage to thereby secure gas-tightness, a sealing unit connected to the other end of the regeneration tower on a lower differential pressure side to thereby secure gas-tightness, and an adjusting unit for maintaining the differential pressure

Abstract: A regeneration tower including a regeneration tower main body having a long trunk, and desorbed gas discharge passages through which a desorbed gas is discharged. The regeneration tower main body is configured so that a heating unit that heats an adsorbent, a separation part that separates desorbable substances as a desorbed gas from the heated adsorbent, and a cooling unit that cools the adsorbent from which the desorbable substances have been desorbed by heating are communicatively disposed in one direction and the heating unit and the cooling unit have approximately the same sectional outer diameter.

Abstract: There is provided method and apparatus for creating a longitudinally disposed, sharp puff of gas, useful for puffback renewal of gas-entry faces of a panel-bed gas filter or a panel-bed gas-powder contactor. Perforations are disposed along the wall of a tank in a path generally parallel to the tank's axis. Stoppers are provided for stoppering the perforations. With the perforations so stoppered, a gas is introduced at high pressure into the tank. Thereafter, quickly unstoppering the perforations releases the gas from the tank in form of a longitudinally disposed, sharp puff of gas moving in a direction perpendicular to the tank's axis. If the tank is placed vertically alongside or within a space receiving gas from a panel bed, the sharp puff can effectively puffback the panel bed.

Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.

Abstract: The present invention relates generally to a method for removing contaminants from a fluid stream and chemically upgrading the stream at the same time. More particularly, the invention relates to a catalytic moving bed filter for removing contaminants from a gas or vapor stream and to compositions comprising both moving bed filter materials and one or more catalysts intimately admixed therewith.

Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.

Abstract: An apparatus (10) for purifying polluted air consisting of particle phase pollutants and gaseous phase pollutants, the apparatus (10) comprising: a dust level sensor (23) to measure the amount of particle phase pollutants in the polluted air; a dust removal component (14) to remove the particle phase pollutants from the polluted air; a catalyst filtering core (17) to decompose the gaseous phase pollutants by chemical reaction; a valve (22) for selectively controlling a path of air flow within the apparatus (10) and is movable between an open position and closed position, the valve (22) being positioned downstream from the dust removal component (14); wherein if the amount of particle phase pollutants measured by the dust level sensor (23) is above a predetermined value, the valve (22) is moved to the open position to enable the air to bypass the catalyst filtering core (17); and if the amount of particle phase pollutants measured by the dust level sensor (23) is less than a predetermined value, the valve (22)

Abstract: A filter includes a filter chamber of adjustable volume. The filter chamber encloses a compactable filter medium through which fluid to be filtered may flow. The filter medium includes a plurality of filter particles. A filter particle has an initial shape and is deformable upon application of a deforming force, being capable of substantially regaining its initial shape upon removal of the deforming force. The porosity of the filter medium is adjustable by adjusting the volume of the filter chamber so as adjust the compaction of the filter medium.

Abstract: The present invention relates to a cleaning device (5) to be used in a preimpregnated carbon fiber placement machine including at least one guiding roller (47) for guiding a band (21) of tows to an application head (25), comprising two filtering elements (11, 13) arranged such that a band (21) of tows supported by two plates (15, 17) joined with adjustable clamping means (29) for said filtering elements (11, 13) and means of fixing/separating them to/from said machine, circulates between them. The invention also relates to a preimpregnated carbon fiber placement machine with at least one cleaning device (5).

Abstract: A method and to a device for the regeneration of a particle arranged in the exhaust gas train of an internal combustion engine. An exhaust gas stream to be cleaned is supplied to the at least one particle filter. At least in a regeneration mode, a predetermined amount of an exhaust gas stream to be heated is branched off from the exhaust gas stream upstream of an exhaust gas turbine of an exhaust gas turbocharger which branched-off stream, after it has been heated by a heater is mixed in the form of a heated exhaust gas stream at a point upstream of the at least one particle filter back into the residual gas stream which is coming from the exhaust gas turbine and which is at a lower temperature than that of the other stream.

Abstract: A cone (36) and a ring (38) are accessories separately used during respective phases of cleaning a diesel particulate filter (10, 10?) in a cleaning machine that uses compressed air pulses to clean the substrate (12) where particulate matter in engine exhaust has been trapped. In one phase the ring covers the outer perimeter margin of one end face of the substrate, and in the other phase the cone covers a central inner zone of the end face.

Abstract: The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be filtered out as it passes through the dust filter. In order to produce a device which separates dust in a highly efficient manner and which can be operated in a highly reliable manner and be used to heat combustion air for the combustion plant, the at least one dust filter is embodied as a bulk material filter in whose bulk material heat from the flue gases can be collected when the bulk material is cross-flown by the flue gases and by means of whose bulk material heat collected from the flue gases when the combustion air of the combustion plant flows through the bulk material filter can be given off to said combustion air.

Abstract: Particles may be used to filter oleo material such as grease from a flow of fluid such as a gas. The particles can be arranged into a bed to filter the oleo material from the fluid. The filtrate substance collect on the inorganic particles. The particles are re-usable, in that they can be subjected to filtrate-separation techniques, e.g., solvent extraction, detergent washing, and centrifugal separation, to separate the oleo material from the particles.

Abstract: Inorganic, porous particles filter a substance or substances from a flow of fluid such as a gas. The particles can be arranged into a bed to filter a substance (filtrate substance) from a fluid. The filtrate substance can collect on or within the pores of the inorganic particles. Collection of the filtrate substance within the pores of the particles rather than within the interstices of the bed enhances the filtering capacity and does not impede the flow of fluid through the bed of particles. Furthermore, the inorganic particles are re-usable, in that they can be subjected to harsh filtrate-separation techniques, e.g., heat treatment, solvent extraction, detergent washing, and centrifugal separation, yet retain their desired properties.

Abstract: There is provided an improved panel-bed method and apparatus for achieving an intimate contact of a gas and a loose granular solid material (e.g., for filtering dust from the gas). A bed of the material is housed in a tall, narrow panel, across which gas moves in a substantially horizontal direction. Gas-entry portions of the granular bed are supported by louvers that slope inwardly and upwardly from nearby their outer edges. The total area of the gas-entry faces presented by these gas-entry portions is greater than the projected vertical frontal area of the panel. After an interval of the contact, gas-entry faces of the granular material are renewed by causing en masse displacement of the material respecting the supporting louvers, the displacement producing a spill of a surface layer from each gas-entry face. This displacement is preferably accomplished by causing louvers to move sharply upward (e.g., as may be caused by an upward blow of a hammer).

Abstract: Described are filters containing free-activated carbon fibers or activated carbon fibers in the form of a composite used for filtering a variety of contaminants, including pathogens, from air. These filters can provide effective and efficient removal of contaminants from air, requiring only short contact time between the air being filtered and the filter itself, with only a minimum pressure drop across the filter. The characteristics of these filters allow for effective filtration with only thin filter layers being required. The process of filtering air utilizing these filters is also disclosed.

Abstract: A moving granular bed filter for removing contaminants from a gas or vapor stream employs a quantity of granular media that is passed through a vessel while the contaminant-laden gas stream is passed through the granular media to remove at least a portion of the contaminants from the gas stream and into the granular media. The vessel includes a media inlet that extends between a pair of opposite regions of the vessel and delivers the granular media into the interior of the vessel such that the granular media forms a freely-formed filtration pile within the interior of the vessel to define first and second chambers above the upper surface of the pile and on opposite sides of the media inlet. In one embodiment, the media inlet is disposed at the lower end of a media delivery channel that extends downwardly into the interior of the vessel and which supplies the granular media to the media inlet.

Abstract: Phthalic acid anhydride is recovered from a gas stream containing phthalic acid anhydride vapors by passing the gas stream upwardly through a vertical tube so that the gases expand at the orifice at the upper end of the tube and mix with granules entrained above the tube by fluidizing gas of a fluidized bed of phthalic acid anhydride granules around the tube. The tube, kept free from phthalic acid anhydride granules and the fluidized bed, is indirectly cooled.

Abstract: The filtering plant has a plurality of porous, gas-permeable filter elements with at least one raw gas side and at least one clean gas side. The gas to be cleaned (raw gas) flows towards the raw gas side, and the clean gas side is connected with a clean gas passage. Into the clean gas passage and into the filter elements, pulse gas coming from a pressure vessel is introduced for periodically detaching dust adhering at the raw gas side. Via a gas-permeable passage, the pressure vessel is connected with a measuring chamber having a smaller volume than the pressure vessel. While pulse gas flows out of the pressure vessel into the clean gas passage and to the filter elements, the pressure difference .DELTA.p=p1-p2 is measured and monitored, where p1 is the static pressure in the measuring chamber, and p2 is the static pressure in the pressure vessel. Expediently, an alarm signal is activated when the maximum of the pressure difference falls below a predetermined minimum value.