A method for controlling an adsorption phase of a gas generator, said generator comprising an adsorbent medium capable of selectively adsorbing a first gaseous component from an inlet gas flow comprising a gaseous mixture, and allowing an outlet gas flow mainly comprising a second gaseous component, said method comprising: directing the inlet gas flow through an inlet of said gas generator; measuring the outlet gas flow; determining the concentration of said second gaseous component at the outlet of said vessel; wherein the method further comprises: calculating the capacity of the generator; comparing the measured outlet gas flow with the calculated capacity; maintaining the generator in adsorption phase for a predetermined time interval, s; subjecting the generator to a regenerating cycle after said predetermined time interval.

In a method of operating an adsorption apparatus including a plurality of adsorption beds each packed with a physical adsorbent, when an adsorption step is performed in a part of the adsorption beds and another adsorption bed is to be regenerated, after the adsorption target component adsorbed on the physical adsorbent is desorbed, a gas for cooling is caused to flow through the another adsorption bed so that the another adsorption bed is cooled until an outlet temperature of the another adsorption bed reaches a temperature set in advance. Further, the cooled adsorption bed stands by for switching to the adsorption step while a gas for standby for maintaining a cooled state is caused to flow through the cooled adsorption bed.

Systems including a moisture pump for removing moisture from an inside environment to an outside environment. The moisture pump includes a housing defining a heating chamber and a condensation chamber. Maintained by the housing is a desiccant, a heater, and a heat sink for selectively adsorbing water vapor in the heating chamber when the heater is off and desorbing water vapor into the heating chamber when the heater is on. A valve assembly is also maintained by the housing transitionable between an adsorption position and desorption position. The adsorption position allows water vapor to be selectively transmitted into the heating chamber from the inside environment. The desorption position allows water vapor to be transmitted from the heating chamber into the condensation chamber for transmission into the outside environment, respectively. Insulation is optionally used around the heating chamber to increase desiccant desorption efficiency.

A portable oxygen concentrator is disclosed. An output of a high pressure compressor is fluidly coupled to an adsorbent device that increases the concentration of oxygen gas for storage in a high pressure accumulator. The adsorbent device is purged of the collected nitrogen via a valve fluidly coupled to the outlet of the high pressure compressor and the inlet of the adsorbent device. The outlet of the adsorbent device is fluidly coupled to the high pressure accumulator through a first valve. Additionally, a re-circulation loop fluidly couples the outlet of the adsorbent device to a valved inlet of the high pressure compressor.

A valve arrangement in particular four-way switch, for an adsorber station of an air separation plant, having a first valve device comprising a first gas inlet/gas outlet, a second valve device, comprising a second gas inlet/gas outlet, and a first connecting piece, which fluidically connects a first housing section of the first device to a second housing section of the second valve device, the first connecting piece has a third gas inlet/gas outlet. A second connecting piece, fluidically connects the first housing section to the second housing section, wherein the second connecting piece has a fourth gas inlet/gas outlet. The valve arrangement is selectively switchable into a first switching state, in which the first gas inlet/gas outlet is fluidically connected to the fourth gas inlet/gas outlet and the second gas inlet/gas outlet is simultaneously fluidically connected to the third gas inlet/gas outlet, or into a second switching state, in which the first gas inlet/gas outlet is fluidically connected to the third gas inlet/gas outlet and the second gas inlet/gas outlet is simultaneously fluidically connected to the fourth gas inlet/gas outlet.

A three-product PSA system which produces three product streams from a feed gas mixture comprising a light key component, at least one heavy key component, and at least one intermediate key component is described. The three-product PSA system produces a high pressure product stream enriched in the light key component, a low pressure tail gas stream enriched in the at least one heavy key component, and an intermediate pressure vent gas stream enriched in the at least one intermediate key component.

An air dryer includes a first flow path through the air dryer and a second flow path through the air dryer in parallel with the first flow path. A diverter valve has a first position that provides fluid communication to the first flow path and a second position that provides fluid communication to the second flow path. A system parameter signal is reflective of fluid flow through the air dryer, and a controller receives the system parameter signal and produces a first control signal based on the system parameter signal. The first control signal controls the position of the diverter valve.

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).

Provided are apparatus and systems for performing a swing adsorption process. This swing adsorption process may involve passing streams through adsorbent bed units to remove contaminants, such as water, from the stream. As part of the process, the adsorbent bed unit may include additional space for the valves of the adsorbent bed unit.

A gas laser apparatus may include: a laser chamber connected through a first control valve to a first laser gas supply source that supplies a first laser gas containing a halogen gas and connected through a second control valve to a second laser gas supply source that supplies a second laser gas having a lower halogen gas concentration than the first laser gas; a purification column that removes at least a part of the halogen gas and a halogen compound from at least a part of a gas exhausted from the laser chamber; a booster pump, connected through a third control valve to the laser chamber, which raises a pressure of a gas having passed through the purification column to a gas pressure that is higher than an operating gas pressure of the laser chamber; and a controller that calculates, on a basis of a first amount of a gas supplied from the booster pump through the third control valve to the laser chamber, a second amount of the first laser gas that is to be supplied to the laser chamber and controls the first control valve on a basis of a result of the calculation of the second amount.