An adsorption module and associated processes for conducting advanced separations processes such as sorption enhanced water-gas shift (SEWGS). The adsorption module contains at least one angled baffle to create at least two tapered adsorbent beds within the adsorption module. The taper is such that the adsorbent beds' cross-sections within the adsorption module decrease in the direction of feed flow, thereby taking advantage of increased product purity and process efficiency provided by tapered adsorption beds.

The present disclosure relates to a carbon capture adapter that may attach to high air flow locations. A carbon capture adapter may utilize the air flow of a high air flow location to allow for capture of unfiltered air, allowing for carbon removal and the scrubbing of the unfiltered air. The carbon capture adapter may comprise carbon sensors that may detect carbon levels of the air before and after the carbon has been scrubbed or removed from the ambient air. The carbon capture adapter may capture and transform the carbon into secondary substances that may be useful unto itself. The carbon capture adapter will have all inputs, outputs, processes, and flows that meet all aspects of a closed loop system that is specifically designed for CCS. The carbon capture adapter may be at least temporarily secured to at least one portion of a vehicle.

The present disclosure relates to a biodegradable porous bonded-grain monolithic CO2 scrubber for respiration devices. The scrubber comprises a monolithic body of bonded grains, including calcium hydroxide, sodium hydroxide, lithium hydroxide, and potassium hydroxide, to act as CO2 absorbents. The body features enclosed gas passages facilitating gas flow and CO2 absorption. The grains are bonded via adhesion, powder polymer, or heat sintering, and the structure includes hydrophobic additives to reduce caustic solution formation. The scrubber can be manufactured through extrusion or additive manufacturing, with various passage shapes and sizes. The monolithic body may include biodegradable polymers for environmentally sound disposal.

An emissions-filtering reaction-isolation apparatus for stimulating hydride reactions that are confined in the apparatus and allowing any MeV ions with energy greater than approximately 2 MeV emitted to escape from the apparatus. The apparatus can include a reaction region enclosed by an envelope. The apparatus also can include one or more conductors comprising crystal films or particles of Pd, Ti, W, or Ni. The apparatus additionally can include at least two supports for each conductor. The apparatus further can include a hydrogen storage material located adjacent to the conductors. When the apparatus is stimulated by heating by one or more lasers or MeV energy particle beams, hydrogen is released from the hydrogen storage material, the heating causes the hydride reactions with the conductors, the hydride reactions increase a temperature of the apparatus providing a hydride reaction signature, and if any reactions cause emission of the ions, the ions escape from the apparatus to allow detection of the ions. Other embodiments are described.

A diving apparatus for a diver underwater includes a portable habitat in which a breathable environment is maintained underwater. The habitat has a collapsible envelope. The collapsible envelope takes shape through inflation to an expanded state underwater. The habitat has a modular payload which removably attaches to the envelope underwater. The habitat has a seat on which a diver can sit while the habitat is underwater. The modular payload has a breathable gas source to provide breathable gas for the diver to breathe in the habitat and a carbon dioxide scrubber which removes carbon dioxide from the environment when the habitat is underwater. The apparatus has an anchor mechanism attached to the habitat to maintain the habitat at a desired depth underwater. A method for a diver to dive underwater. A system for supporting a diver underwater. A diving apparatus having a propulsion unit. An apparatus for a user in outer space or on another planet.

Consumed energy and cost relating to control of a carbon dioxide concentration is reduced. Each of CO.sub.2 concentration control systems (100 to 105) includes a measuring unit (20) that measures a CO.sub.2 concentration, a CO.sub.2 absorption unit (30) that has a CO.sub.2 absorption material (31) for absorbing CO.sub.2 at a rate depending on the temperature thereof, and a control unit (10) that controls the temperature of the CO.sub.2 absorption material (31) by using exhaust heat of a power system (40), so as to control a CO.sub.2 absorption rate of the CO.sub.2 absorption material (31).

A humidity control apparatus includes a housing having an air passage formed therein; a humidity control unit including a first conductive electrode provided in the air passage and having an adsorbent attached thereto, a second conductive electrode provided in the air passage and disposed along the first conductive electrode, and a third conductive electrode interposed between the first conductive electrode and the second conductive electrode and having a potential intermediate between potentials of the first conductive electrode and the second conductive electrode; a power supply unit configured to apply a voltage to the first conductive electrode and the second conductive electrode; and a fan configured to supply air to the air passage to cause the air to flow through the humidity control unit.

The invention relates to a method and control system to control the speed of a centrifugal compressor operating within a vacuum pressure swing adsorption process to avoid an operation at which surge can occur and directly driven by an electric motor that is in turn controlled by a variable frequency drive. The claimed method determines the optimal speed for operation of the compressor along a peak efficiency operating line of a compressor map thereof. Speed of the compressor is adjusted by a feed back speed multiplier when the flow or other parameter referable to flow through the compressor is below a minimum and a feed forward multiplier during evacuation and evacuation with purge steps that multiplies the feed back multiplier to increase speed of the compressor and thereby avoid surge.

In some embodiments, a solid oxide fuel system is provided. The solid oxide fuel cell system may include a chromium-getter material. The chromium-getter material may react with chromium to remove chromium species from chromium vapor. The solid oxide fuel cell system may also include an inert substrate. The chromium-getter material may be coated onto the inert substrate. The coated substrate may remove chromium species from chromium vapor before the chromium species can react with a cathode in the solid oxide fuel cell system.

The present invention generally relates to compounds, systems, and methods for adsorption of CO.sub.2 onto nanoclusters.