The present disclosure provides an air carbon capture adsorption device and a low-resistance carbon capture system. The air carbon capture adsorption device includes: a support body, a heat exchange assembly, airflow dividing assemblies, an adsorption group, and external sealing assemblies; wherein the airflow dividing assemblies are provided on two sides of the support body, are communicated with the heat exchange assembly and are used to divide an airflow in an internal space of the support body while performing heat exchange in the internal space of the support body to form at least two small airflows; and the adsorption group is dispersedly filled in a space formed by the airflow dividing assemblies and the support body. The air carbon capture adsorption device can increase a porosity of a fine particle adsorbent, so that a resistance of an airflow passing through an adsorption layer is lower.

The present invention provides a carbon dioxide recovery apparatus that is configured to execute a desorbing step and an absorbing step through heat control by a heat pump-type heat source device, and is capable of suppressing the overall heat load fluctuation of the apparatus, enabling continuous operation. A heat exchanger of a carbon dioxide recovery apparatus includes: a heat source low-temperature water circuit; a hot water supply line that supplies hot water from a hot water tank to a module; a hot water return line that returns hot water having heated the module 11 to the hot water tank; a cold water supply line that supplies cold water from the cold water tank to the module; and a cold water return line 111b that returns cold water having cooled the module to the cold water tank.

Provided is a carbon dioxide recovery apparatus that reduces an energy loss to a low level, while preventing or reducing deterioration of an adsorbent that can be caused by a heat transfer medium compressed by a compressor. In a carbon dioxide recovery apparatus, a heat transfer medium decompressed by an expansion valve is supplied to a first reactor that performs an adsorption process so that heat exchange between the heat transfer medium and the first reactor cools an adsorbent and heats the heat transfer medium, and the heat transfer medium compressed by a compressor is cooled by a heat exchanger and then supplied to a portion which belongs to a second reactor that performs a desorption process and in which an adsorbent is cooled so that heat exchange between the heat transfer medium and the second reactor heats the adsorbent and cools the heat transfer medium.

A system for gas separation includes a first housing, a first reactor section that includes first adsorbent beds that are disposed within the first housing, a second housing, and a second reactor section that includes a second adsorbent bed disposed within the second housing. The first adsorbent beds (i) include respective solid sorbents configured to adsorb target molecules from a fluid stream that is subject to the gas separation and (ii) are arranged in parallel with respect to each other and relative to a flow direction of the fluid stream. The second adsorbent bed (i) includes a respective solid sorbent configured to adsorb the target molecules from the fluid stream and (ii) is staged in series relative to the first adsorbent beds and the flow direction. Each of the first adsorbent beds has a volume that is different from a volume of the second adsorbent bed.

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25 C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25 C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.

A carbon dioxide recovery apparatus includes: a first adsorption chamber having an intake port and an exhaust port open to an atmosphere; a fan that is configured to form a flow of air in a direction from the intake port toward the exhaust port; a damper that is configured to close the exhaust port; a first adsorption unit that is disposed in the first adsorption chamber and is configured to adsorb carbon dioxide contained in air; a second adsorption chamber that is formed alongside the first adsorption chamber; a connecting pipe that connects the first adsorption chamber and the second adsorption chamber to each other; a second adsorption unit that is disposed in the second adsorption chamber and is configured to adsorb carbon dioxide contained in a gas flowing into the second adsorption chamber from the connecting pipe; and an on-off valve that is provided on the connecting pipe.

Processes and apparatuses for producing a hydrogen stream by: producing an effluent stream in a reaction zone comprising a reactor, the effluent stream comprising hydrogen and oxygen; selectively adsorbing oxygen from the effluent stream in a separation zone, the separation zone comprising a plurality of vessels containing an adsorbent configured to selectively adsorb oxygen and provide a purified hydrogen stream; and regenerating spent adsorbent in a vessel from the plurality of vessels of the separation zone with at least a portion of the purified hydrogen stream to desorb oxygen as water.