A system for managing an oxygen generating system including an oxygen storage tank, a compressor, and groups of at least one oxygen generator, wherein the oxygen generating system is configured for supplying a sustained flow of a gaseous mixture comprising mostly oxygen. The system includes at least one controller device. The at least one controller device is configured to control group circuits based at least upon a pressure. Each of the group circuits are for providing power to a particular group of the groups of at least one oxygen generator. The at least one controller device is also configured to control a circuit for providing power to the compressor.

A carbon dioxide recovery apparatus has a separator which separates carbon dioxide from a gas by utilizing adsorption and desorption of carbon dioxide to and from an adsorbent caused by pressure fluctuation, the separator including a pressurizer which pressurizes the gas to a pressure that the adsorbent is capable of adsorbing carbon dioxide, and has a dryer having a hygroscopic agent for drying the gas. A regeneration system supplies the residual gas discharged from the separator to the dryer as a regeneration gas for regenerating the hygroscopic agent in the dryer, and the regeneration gas to be supplied to the dryer is heated by an energy converter by utilizing a pressure of a post-regeneration gas discharged by the regeneration of the hygroscopic agent.

An oxygen separator for generating an oxygen-enriched gas from an oxygen comprising gas, said oxygen separator comprising: a) an oxygen separator device comprising i) a sorbent material for sorbing at least one component of the oxygen comprising gas; and ii) at least two controllable interfaces, comprising a first controllable interface and a second controllable interface, for controlling the communication of gas between the inside and the outside of the oxygen separator device, b) a processor for controlling the oxygen separator such that a plurality of phases are sequentially carried, amongst them a purging phase; wherein the processor is configured to control the at least two controllable interfaces such that a flow of gas is generated between the first controllable interface and the second controllable interface during at least the purging phase, wherein the second controllable interface is located and/or controlled such that it controls the fluidic coupling between the inside of the oxygen separator device and a volume of non-oxygen-enriched gas during the purging phase.

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).

Disclosed herein is a CA system which allows first and second adsorption columns to alternately perform an adsorption operation and a desorption operation so that nitrogen-enriched air having a higher nitrogen concentration and a lower oxygen concentration than the air is produced and supplied into the container. The CA system executes a second operation mode in which the nitrogen-enriched air produced for a predetermined time since the desorption operation was started is discharged to the outside of the container, and the nitrogen-enriched air produced until the end of the desorption operation since the predetermined time passed is supplied into the container.

A gas concentration device according to an embodiment of the present invention includes: an air supplier supplying pressurized air; a plurality of adsorption beds which separate pressurized air supplied from the air supplier into product gas and purge gas by a pressure swing adsorption method and discharge the separated product gas and purge gas; a flow passage regulating valve unit which regulates flow passages so as to allow the pressurized air to be supplied to the adsorption bed from the air supplier and so as to reduce pressure of the adsorption bed so that a nitrogen adsorption process and a nitrogen desorption process are alternately performed; and a pressure boosting unit which is configured to be fed with the purge gas and the product gas discharged from the adsorption bed and is configured to pressurize the product gas in multi-stage sequentially using the purge gas and the product gas.

Methods, systems, and devices for an automotive vehicle air cleaning system are provided which may be configured to operate in at least an adsorption mode and an in-situ regeneration mode are disclosed. The system includes at least one type of sorbent material configured to remove CO.sub.2 from a cabin of an automotive vehicle according to a repeated adsorption-desorption swing cycle, a first inlet configured to supply a first airflow of air from the cabin to the system during an adsorption mode, and a first outlet configured to return the first airflow after passing over and/or through the sorbent material during the adsorption mode. The system includes a second inlet configured to supply a second airflow of outside air to the system during a regeneration mode, a second outlet to return the second airflow after passing over and/or through the sorbent material during the regeneration mode.

The invention relates to a method and system for improving PSA/VPSA plant energy efficiency during times of reduced production demand and capital efficiency through optimizing feed, vacuum, and centrifugal product compressors to achieve lower energy consumption and lower unit gas product production cost. More specifically, the present invention relates to a new energy efficient PSA/VPSA turn down process and system which employs high speed direct drive centrifugal product compressor to achieve desired production. Significant lower energy consumption can be achieved by employing lower flow, and lower adsorption top pressure in the lower production range.

The present invention provides a gas separation system and a gas separation method capable of separating various types of hydrocarbon gas with high selectivity, and a gas separation system is for separating one type or more of hydrocarbon gases from mixed gas consisting of two types or more of hydrocarbon gases; having a porous metal-organic complex having pores determined by metal ion-containing planar ligands facing each other and pillar ligands coordinating between the planar ligands, and a controller for controlling at least a pressure of the mixed gas; and in which the pressure is controlled to control adsorption of the hydrocarbon gas to the porous metal-organic complex or desorption thereof from the porous metal-organic complex.

A dehumidifier includes a first air distribution assembly connected to a process air inlet for receiving process air, and to a regeneration air outlet for exhausting regeneration air; and a second air distribution assembly connected to a process air outlet for delivering process air, and to a regeneration air inlet for receiving regeneration air. The dehumidifier includes multiple stationary modules connected in parallel between the air distribution assemblies. Each module contains desiccant and has opposing apertures for connecting to the air distribution assemblies. The air distribution assemblies are configured to cycle between a number of positions equal to the number of modules. In each position, the air distribution assemblies establish a regeneration air flow from the regeneration air inlet to the regeneration air outlet via one module, and a plurality of process air flows from the process air inlet to the process air outlet via each remaining module.