A breather device for dehumidifying air to be supplied into an expansion vessel of a power electrical apparatus, said breather device comprising an air demoisturizer unit including one or more tanks having an internal volume accommodating a moisture absorbing substance and being adapted to be in fluid-dynamic communication with the external environment and with said expansion vessel.

The breather device comprises one or more capacitive electric arrangements accommodated in said one or more tanks.

Each capacitive electric arrangement comprises first and second electrodes arranged spaced one from another in the internal volume of a corresponding tank and a quantity of said moisture absorbing substance between said first and second electrodes.

The breather device breather device further comprises or is operatively coupleable with a detection device electrically connectable with the capacitive electric arrangement of a tank and adapted to provide at least first measurement data indicative of the equivalent capacitance of said capacitive electric arrangement.

An apparatus (10, 110, 210, 310) for the separation and recovery of CO.sub.2, from air, by a cyclic adsorption/desorption process using a loose particulate sorbent for gas adsorption. The apparatus has a plurality of adjacent, parallel, spaced-apart layers (24, 124, 224, 324), each having a stiff frame supporting a flexible, gas-permeable fabric enclosure for the sorbent. The gas inlet (14, 114, 214, 314) and outlet (18,1 18, 216, 316) of the apparatus are on its axially opposite sides, and each layer (24,124, 224, 324) extending axially within the apparatus. The recovered CO.sub.2 can be either supplied to an enclosed space, recycled to an enclosed space, from which the CO.sub.2 had been separated, or vented to the exterior of the latter enclosed space.

A method for regeneration of a carbon dioxide absorbent includes steps of a) bringing a used carbon dioxide absorbent in contact with a carbon-containing dielectric material to form a dielectric energy-susceptible combination, and b) subjecting the dielectric energy-susceptible combination to a dielectric heating to remove carbon dioxide from the used carbon dioxide absorbent for the regeneration.

Disclosed is a CO.sub.2 concentration reducing device for separating and removing CO.sub.2 from a gas containing CO.sub.2 with a CO.sub.2 adsorbent, the CO.sub.2 concentration reducing device including: an adsorbent container which contains the CO.sub.2 adsorbent; and a heating unit which heats the CO.sub.2 adsorbent by an induction heating or a dielectric heating. Thus, a ventilation quantity can be reduced when CO.sub.2 accumulated in a room is removed, and an electric power required for the ventilation and the electric power required for air conditioning can be reduced.

The invention of the present application provides a self-heating sheet-like material for moisture absorption and desorption which includes at least a self-heating layer and an adsorption layer in a laminate thereof, in which the self-heating layer and the adsorption layer are connected in a state in which heat conduction is enabled; a moisture absorption and desorption body formed of this material; and a moisture absorption and desorption device.

Provided is a desulfurizer for removing a sulfur compound contained in a fluid, comprising a desulfurization agent for removing the sulfur compound from the fluid and a housing which contains the desulfurization agent and the inside of which the fluid flows through. The desulfurization agent includes a metal organic framework. The metal organic framework has copper ions and organic ligands. The organic ligands include 1,3,5-benzenetricarboxylic acid and 1,3-benzenedicarboxylic acid.

A structured material assembly for removing CO.sub.2 from a gas, comprises a substrate, a sorbent for adsorbing CO.sub.2 from the gas, and a desorption material integrated into the structured material assembly, which is responsive to inputted energy to generate heat to desorb CO.sub.2 from the sorbent. The CO.sub.2-containing gas may comprise ambient air.

A method of adsorption allows separation of a first fluid component from a fluid mixture comprising at least the first fluid component in an adsorptive separation system having a parallel passage adsorbent contactor with parallel flow passages having cell walls which include an adsorbent material. The method provides for transferring heat from the heat of adsorption in a countercurrent direction along at least a portion of the contactor during adsorption and transferring heat in either axial direction along the contactor and/or a direction transverse to the axial direction, to provide at least a portion of the heat of desorption during a desorption step. A carbon dioxide separation process to separate carbon dioxide from flue gas also includes steps transferring heat from adsorption or for desorption along the parallel passage adsorbent contactor.

A sorbent structure that includes a continuous body in the form of a flow-through substrate comprised of at least one cell defined by at least one porous wall. The continuous body comprises a sorbent material carbon substantially dispersed within the body. Further, the temperature of the sorbent structure can be controlled by conduction of an electrical current through the body.

Systems including a moisture pump for removing moisture from an inside environment to an outside environment. The moisture pump includes a housing defining a chamber with a heater, a heat spreader, and a desiccant 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 for transmission into the outside environment. The adsorption and desorption ports can have asymmetric adsorption and desorption areas.