The invention relates to an air dryer cartridge (5) for a compressed air system of a commercial vehicle.

According to the invention, the air dryer cartridge (5) comprises a base element coupling region (6) by which the air dryer cartridge (5) can be coupled to a base element (4) of an air dryer (1). Furthermore, the base element coupling region (6) of the air dryer cartridge (5) comprises a control port (93) for a control signal for a release valve (40). Furthermore, a release valve coupling region (94) is provided at the air dryer cartridge (5), a release valve (40) being coupled or coupleable to the release valve coupling region (94).

According to the invention, the base element coupling region (6) and the release valve coupling region (94) are arranged on opposite sides of the air dryer cartridge (5). Preferably, the inventive air dryer cartridge (5) can be assembled from below to a base element (4). The control signal for controlling the release valve (40) can be passed by a control line of control conduit (44) through the interior of the air dryer cartridge (5), in particular through a desiccant (14).

Methods for operating an adsorption separation zone are described. A trim bed is used with two adsorption beds in a swing bed arrangement. The trim bed will catch small amounts of treated feed remaining in the adsorption bed during the switch over from the spent adsorption bed to the fresh adsorption bed. In addition, any adsorbed material that desorbs from the spent adsorption bed during the displacement step of regeneration would be adsorbed onto the trim bed.

Disclosed is an energy-saving system and method for direct air capture with precise ion control. The system includes an air conveying device, an air distribution device and a CO.sub.2 adsorption device with a moisture swing adsorbent with high CO.sub.2 adsorption capacity, where the air conveying device, the air distribution device and the CO.sub.2 adsorption device are connected in sequence, and the CO.sub.2 adsorption device is provided with a spray desorption device; a valence-state ion sieving device; a pH swing regeneration device; and a CO.sub.2 regeneration device. In accordance with the energy-saving system provided by the present disclosure, ultra-low concentration of CO.sub.2 in the air can be enriched to the concentration of 95% step by step for industrial application or biological application at room temperature and pressure by consuming the electricity which cannot be connected to a power grid.

Systems and methods are provided for performing a swing adsorption process, such as a temperature swing adsorption process. During portions of a swing cycle where one or more components are being desorbed, a vibration or other perturbation can be induced in the adsorbent and/or in the adsorbent structure to assist with desorption. Inducing a vibration or other perturbation in the adsorbent structure can provide a way to introduce additional energy into the adsorbent system without having to increase the temperature of the adsorbent structure.

A carbon dioxide separation and recovery system includes an adsorption tower, a regeneration tower, and a drying tower. The adsorption tower causes a target gas to contact an adsorbent to adsorb carbon dioxide contained in the target gas to the adsorbent. The regeneration tower causes a normal-pressure wet gas which is a gas mixture of the carbon dioxide and steam to contact the adsorbent having adsorbed the carbon dioxide to desorb the carbon dioxide from the adsorbent. The drying tower dries the adsorbent. In addition, the carbon dioxide separation and recovery system includes a compressor that compresses the carbon dioxide, and an ejector that expands the carbon dioxide discharged from the compressor while suctioning negative-pressure steam, to generate the wet gas.

Methods for operating an adsorption separation zone are described. A trim bed is used with two adsorption beds in a swing bed arrangement. The trim bed will catch small amounts of treated feed remaining in the adsorption bed during the switch over from the spent adsorption bed to the fresh adsorption bed. In addition, any adsorbed material that desorbs from the spent adsorption bed during the displacement step of regeneration would be adsorbed onto the trim bed.

A rotary bottom ash regenerating (RBAR) system [100] comprises a cylindrical body [110] that receives ash [17] containing reactant particles [10] that are partially reacted limestone compounds having unreacted cores [13] from a furnace. Sensors [140] sense physical parameters within the cylindrical body [110]. A controller [170] receives the output of the sensors [140] and information indicating the amount of unreacted core [13] and causes a fluid actuator [135] to spray a proper amount of regeneration fluid regulator [135] from a plurality of spray nozzles [131] to different locations within the cylindrical body [110] to regulate the temperature and to cause the reactant particles [10] to have a require content of regeneration fluid. This causes the reactant particles [10] to be regenerated and reused. This results in a lower limestone costs and less overheating of ash handling systems.

Apparatus and methods are disclosed herein for capturing targeted gas in air. An air purification apparatus (110) is presented comprising: a targeted gas capture chamber (120) with an air inlet (118) and an air-permeable wall (122) configured to at least partially capture a targeted gas from air that passes into the air inlet and through the air-permeable wall; and a targeted gas removal unit (126) that is periodically positionable adjacent to the air-permeable wall of the targeted gas capture chamber to at least partially remove, e.g., via adsorption, the targeted gas captured by the air-permeable wall. Further, an air purification apparatus is presented that comprises: a targeted gas capture chamber (120) with an air inlet (118) and an air-permeable wall (122) configured to at least partially capture a targeted gas from air that passes into the air inlet and through the air-permeable wall; a valve (116, 516) that is operable to permit air to flow into the targeted gas capture chamber (120, 520); and a controller (114) operably coupled with the valve and configured to make a determination, based on a signal indicative of a level of the targeted gas detected in the air, that a threshold level of targeted gas is detected in the air, and to open the valve to permit air flow into the targeted gas capture chamber (120, 520) based on the determination.

A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. A first perforated sheet may be disposed between the first fin layer and the second fin layer. A sorbent material may be disposed within a volume of at least one of the first fin layer or the second fin layer.

A method for treating a synthesis gas from a gasification step. The synthesis gas is cooled to condense heavy organic impurities and water. At the end of the cooling step, light organic impurities and inorganic impurities are adsorped by at least one adsorption bed. The water and heavy tars are separated by decantation from the step of cooling the synthesis gas. At least one adsorption bed is regenerated by temperature-modulated or pressure-modulated desorption.