A filter body is provided with a filter medium that has filter layers arranged one over the other, wherein each filter layer is provided with at least one active material. The at least one active material is the same in all of the filter layers. The filter layers are to be flowed through serially in a through-flow direction of the filter body. Sensor devices are provided, wherein each sensor device is arranged between two of the filter layers neighboring each other, respectively, so that the sensor devices, in the through-flow direction of the filter body, are arranged one after another in order to determine a sorption capacity of the at least one active material of each filter layer over a service life of the filter body.

An improved regenerative separating device for separating impurities from an airflow, in particular a process exhaust airflow, provides a better distribution of the airflow in an annular gap between a rotary separating unit comprising a plurality of filter blocks for adsorbing impurities from the airflow and a circumferential wall of a housing incorporating the rotary separating unit. The airflow inlet provided in the circumferential wall for introducing the airflow into the annular gap and a regeneration system for regenerating the filter blocks of the rotary separating unit by a regenerating stream passing through the filter blocks to desorb impurities adsorbed in the filter blocks are both positioned in the same circumferential sector of maximum 180 degrees.

The invention relates to a monolithic porous material based on amorphous silica or activated alumina or on one of their mixtures, the material comprising substantially rectilinear capillary ducts that lie parallel to one another, and being intended to be used as packing in a chromatography column, characterised in that: the ducts have, relative to one another, a substantially uniform cross section; the cross-section of each duct is uniform over its entire length; the ducts pass right through the material; the volume of micropores smaller than 0.3 nm is smaller than 50% of the total porous volume of the material.

The present invention pertains to a radial flow adsorption vessel comprising a cylindrical outer shell and at least one cylindrical porous wall disposed co-axially inside the shell, wherein inside the shell one or more fluid permeable screens are rigidly connected to the at least one cylindrical porous wall, by a multitude of separate standoff elements so that the screen has a cylindrical shape co-axial to the shell, and to an adsorption process using the radial flow adsorption vessel.

An air purifier apparatus, comprising: a housing comprising an air intake opening to an external environment outside the housing; a plant pot disposed downstream of the air intake, configured to hold soil, and being perforated so as to enable contact between at least some air outside the plant pot and at least some of the soil inside the plant pot; an air purification filter disposed downstream of the plant pot; a fan disposed downstream of the air purification filter; an air outlet disposed downstream of the fan and located in a first compartment of the housing; a dehumidifier disposed in a second compartment of the housing separate from the first compartment and configured to extract water from air interacting with the dehumidifier, the second compartment having an air exchange perforation opening to the external environment; a watering system, configured to circulate water located inside the housing to the plant pot.

The adsorber vessel is configured for radial flow between a center column and a perimeter manifold. Space between the center column and the perimeter manifold contains adsorption media. End caps close off ends of the vessel. An inlet and an outlet are configured within one of the end caps to feed starting gas into the center column or perimeter manifold, and to draw off product gas from the perimeter manifold or center column. An end cap can be removed to provide access for media loading between the center column and the perimeter manifold. Media is preferably provided within cartridges which can slide into this media space. Cartridges can be concentric with one cartridge inboard of the other, or can be stacked vertically. A spring plate can be provided on an open end to hold the media in position, while sealing the open end of the adsorber vessel.

A cylindrical filter device of the present invention includes a wavy filter screen, a sealing device, and a connecting device. The wavy filter screen includes a first flexible side, a second flexible side opposite to the first flexible side, and a plurality of wavy structures disposed between the first flexible side and the second flexible side. The wavy filter screen wraps to form a cylindrical structure with respect to an axis. The opposite ends of the cylindrical structure are respectively wrapped to form a first opening and a second opening by the first flexible side and the second flexible side. The sealing device is disposed at the first opening and has a first groove. The first flexible side is able to engage with the first groove with its elasticity and makes the first opening be sealed by the sealing device. The connecting device is disposed at the second opening. The connecting device has a second groove and a port. The second flexible side is able to engage with the second groove with its elasticity and makes the second opening communicate with the port.

An adsorption device for adsorption of CO.sub.2 for an elemental analyzer includes a filter having an inlet for a fluid, an outlet for the fluid, and an adsorbent material through which the fluid can flow, and a heating device for heating the adsorbent material. The adsorption device is characterized in that the heating device extends along a longitudinal axis and the filter is arranged coaxially with the longitudinal axis and at least partially radially surrounds the heating device. In addition, an elemental analyzer includes a combustion reactor for burning a sample, an optional reduction reactor, an optional water separator, and a detector. The elemental analyzer further includes the adsorption device for adsorbing CO.sub.2 and a valve control for alternately passing an analysis fluid from the combustion reactor through the adsorption device for adsorbing CO.sub.2 and to the detector, or a flushing fluid through the adsorption device for adsorbing CO.sub.2.

An adsorbent bed, including at least one elementary composite structure that includes adsorbent particles in a polymer matrix, wherein the adsorbent bed has a bed packing, .sub.bed, defined as a volume occupied by the at least one elementary composite structure V.sub.ecs divided by a volume of the adsorbent bed V.sub.bed where .sub.bed is greater than 0.60.

An adsorbent bed, including at least one elementary composite structure that includes adsorbent particles in a polymer matrix, wherein the adsorbent bed has a bed packing, .sub.bed, defined as a volume occupied by the at least one elementary composite structure V.sub.ecs divided by a volume of the adsorbent bed V.sub.bed where .sub.bed is greater than 0.60.