An evaporated fuel processing device is installed to a vehicle having an internal combustion engine and a fuel tank and is configured to process evaporated fuel generated through evaporation of fuel in the fuel tank. A control device of the evaporated fuel processing device is configured to adjust an opening degree of a sealing valve based on a pressure of vapor-phase gas sensed with a pressure sensor and a concentration of evaporated fuel in the vapor-phase gas sensed with a concentration sensor and thereby adjust a supply amount of the evaporated fuel supplied to an air intake pipe at a time of executing a purge operation, in which the vapor-phase gas is purged from the fuel tank to the air intake pipe of the internal combustion engine.

The disclosure relates to an activated carbon scrubber apparatus 300 and a method of its operation for carbon dioxide (CO.sub.2) removal from a controlled environment. The scrubber apparatus is configured to switch between: an adsorption configuration in which it is configured to provide CO.sub.2-rich gas from the controlled environment to a sorbent bed 302 comprising activated carbon for CO.sub.2 adsorption, and to return the treated gas to the controlled environment; and a regeneration configuration in which it is configured to provide a regenerating gas from outside of the controlled environment to the sorbent bed to desorb CO.sub.2 and regenerate the activated carbon, and to discharge CO.sub.2-rich gas outside of the controlled environment. The method comprises alternately operating the scrubber apparatus in the adsorption configuration and the regeneration configuration over a plurality of cycles, wherein the scrubber apparatus is operated at a cycle frequency of between 4 and 30 cycles per hour. A heater 303 is controlled to heat the sorbent bed in the regeneration configuration.

To provide a hydrogen gas supply device with which pressure resistance of a filter that catches sulfur components contained in a hydrogen gas is improved. A hydrogen gas supply device for a hydrogen station includes a compression portion that compresses a hydrogen gas by reciprocating motion of a piston, in which a piston ring containing sulfur components is mounted on the piston, a filter arranged on the downstream side of the compression portion, the filter that catches sulfur components contained in the hydrogen gas, and a first pipe connecting the compression portion and the filter. The filter includes an element portion having activated carbon onto which the sulfur components contained in the hydrogen gas are absorbable, and a steel housing portion that houses the element portion, in which a gas introduction passage that communicates with the first pipe and guides the hydrogen gas to the element portion is formed.

The present invention provides for a method utilizing two sets of adsorber beds wherein one operates as a pressure swing adsorption system and the other operates as a vacuum swing adsorption system to separate carbon dioxide from a mixture of gases obtaining a higher purity of carbon dioxide thus separated than any prior art process.

A monitoring and control system of a molecular sieve oxygen plant generator comprising a PLC controller installed in an oxygen generator, which in turn is connected with an oxygen generator and an air storage tank. The system allows the generation of oxygen in situ and the control and monitoring is remotely controlled. The system comprises artificial intelligence for the monitoring, control and fault self-diagnosis.

An apparatus and process for separating and removing CO.sub.2 generated by one or more passengers in the air in the interior of a cabin of a vehicle. Provided are: —a first stream of the air from the interior of the cabin to an interior of a container holding a loose particulate sorbent for CO.sub.2; —a second stream of air depleted in CO.sub.2 from the interior of the container holding the sorbent to an interior of the cabin; —a third stream of the air from exterior of the cabin to the inferior of the container holding the sorbent; and —a fourth stream of air enriched in CO.sub.2 from the interior of the container holding the sorbent to an exterior of the cabin.

An air purification device includes an adsorption block, a housing, an introduction port for indoor air, an introduction port for heated air, a return port for indoor air, and a discharge port for used regeneration air. The adsorption block adsorbs purification target substances in indoor air, and is regenerated by dispersing the adsorbed purification target substances by circulating heated air. The housing accommodates the adsorption block therein. The introduction port for indoor air and the introduction port for heated air are provided on one end side of the housing. The return port for indoor air and the discharge port for used regeneration air are provided on the other end side of the housing. An insulating layer is provided between the housing and an outer surface of the adsorption block.

An air pollution remediation system is provided. The systemic apparatus includes a tubular column having a plurality of spaced apart vents along its outer surface. Each vent has adjustable louvers for controlling the airflow therethrough. An airflow conduit extends along the longitudinal length of the column with porous layers and a mass of absorbent disposed between the airflow conduit and the plurality of vents. A fan fluidly coupled to the airflow conduit urges ambient air into the airflow conduit and through the porous layers and the mass of absorbent and out of the vents in a selectively controlled manner by way of the adjustable louvers. A prefilter may be disposed upstream of the fan. A network of the systemic apparatus can be arranged to provide, in a selective enabled manner through the adjustable louvers, a contiguous looping canopy of purified air over large open spaces.

A device for the separation of a carbon dioxide of a gas stream by using a bed of particulate adsorber particles contained in a sorbent particle volume, comprising at least two inlet channels and at least two outlet channels in said sorbent particle volume, the inlet channels and outlet channels mutually intertwining at least partly to form a nested structure and being arranged parallel to each other. The inlet channels and outlet channels are alternatingly arranged in both lateral dimensions so that the sorbent particle volume is confined by the interspace defined by adjacent side walls of inlet and outlet channels. Further, the sorbent particle volume surrounds the channels circumferentially.

A hydrogen gas supply apparatus according to one aspect of the present invention includes a compressor configured to compress hydrogen gas and supply the hydrogen gas compressed to a pressure accumulator which accumulates the hydrogen gas, an adsorption column disposed between the discharge port of the compressor and the pressure accumulator, and configured to include an adsorbent for adsorbing impurities in the hydrogen gas discharged from the compressor, and a plurality of valves disposed at the gas inlet/outlet port side of the adsorption column, being at a discharge port side of the compressor, and configured to be able to seal the adsorption column, wherein the space in the adsorption column is sealed using the plurality of valves such that the inside of the adsorption column is maintained to have a high pressure by the hydrogen gas compressed in the case where the compressor is stopped.