Provided is a canister that includes a first adsorbing layer K1 including a first adsorbing material Q1 as an adsorbing material Q and a second adsorbing layer K2 including, as the adsorbing material Q, a second adsorbing material Q2 different from the first adsorbing material Q1. The first absorbing layer K1 and the second absorbing layer K2 are provided inside a casing 10. In a flowing direction X of fuel vapor J between one end and another end of the casing 10, the first adsorbing layer K1 is disposed at a position in contact with an air port 10a at the other end, and the second adsorbing layer K2 is disposed closer to the one end than the first adsorbing layer K1 is. The first adsorbing material Q1 adsorbs the fuel vapor J at an adsorbing rate that is higher than an adsorbing rate of the second adsorbing material Q2.

A system for capturing CO.sub.2 from gases, a pre-cooled stream of the gases is conducted through a bed of CO.sub.2 adsorbent in a first direction capturing CO.sub.2 from the gases in the CO.sub.2 adsorbent bed, a stream of warm heating gas is conducted from a heat storage unit to said CO.sub.2 adsorbent bed in a second direction opposite the first direction transferring stored heat from the heat recovery unit to the adsorbent bed, while simultaneously transferring coldness from the adsorbent bed to the heat storage, the heating gas is conducted through the adsorbent bed in a closed loop desorbing CO.sub.2 from the adsorbent bed, the desorbed CO.sub.2 is extracted a stream of cooling gas is conducted through the heat storage unit and the CO.sub.2 adsorbent bed in the first direction transferring low-temperature heat to the adsorbent bed and high-temperature heat from the adsorption bed to the heat storage unit.

A carbon capture system includes two carbon capture plates. A first carbon capture plate collects carbon dioxide from a flow of ambient air. A second carbon capture plate releases carbon dioxide upon application of heat from a heat exchanger. The heat is exhaust heat from a data center. The first carbon capture plate and the second carbon capture plate are rotatable between the capture and release positions. The carbon capture system uses the waste heat from a data center to collect and store atmospheric carbon dioxide, thereby reducing the concentration of atmospheric carbon dioxide.

Systems and methods for heat exchange during gas adsorption and desorption cycling, one method including removing heat from an adsorbent material during gas adsorption to the adsorbent material; storing the removed heat for later use during desorption of gas from the adsorbent material; heating the adsorbent material during desorption of gas from the adsorbent material using at least a portion of the removed heat; and recycling heat during the step of heating to prepare a working fluid for the step of removing heat via temperature reduction of the working fluid.

A vehicle air purification system includes a first flow path which includes a first heating device (130-1), a first adsorption block (140-1), and a first flow path switching mechanism (150-1); and a second flow path that includes a second heating device (130-2), a second adsorption block (140-2), and a second flow path switching mechanism (150-2); and an air distribution mechanism (120) configured to distribute air flowing from the vehicle cabin to the first flow path and the second flow path; and a control device (20). The control device (20) controls components at a timing that can inhibit the flow of air from a flow path on the side where purification target substances to be purified are being desorbed into the vehicle cabin.

An exhaust gas purifying system for an engine includes a three-way catalyst, a particulate filter, an ammonia sorbent unit, an exhaust gas purifying catalyst unit, and a gas injection component including an oxygen-containing gas, all coupled to an exhaust line. Methods for purifying exhaust gas from an engine include exposing the exhaust gas to a three-way catalyst and a particulate filter, thus generating ammonia. The ammonia may be stored in an ammonia sorbent unit during a cold start condition. An oxygen-containing gas may be injected into the exhaust line. Once the ammonia sorbent has reached a desorption temperature, the ammonia may be released into the exhaust line and exposed to an exhaust gas purifying catalyst unit. The exhaust gas purifying catalyst partially oxidizes the ammonia to nitrous oxides (NOx) and subsequently catalyzes a reaction between the remaining ammonia and the nitrous oxides to give nitrogen gas and water.

The polymer material of the invention is an amine-containing polymer that contains a polymer of a monomer mixture consisting of a monofunctional monomer and more than 10 mol% and 30 mol% or less of a polyfunctional monomer, and exhibits a large reversible gas absorption amount though having a low water content. An efficient production method for the polymer material of the invention includes a polymer synthesis step of synthesizing a polymer by polymerizing monomers in a reaction mixture containing a monofunctional monomer, a polyfunctional monomer, a solvent and an initiator, and an amine infiltration step of infiltrating an amine-containing processing liquid into the polymer, wherein the total monomer concentration in the reaction mixture is 0.7 mol/L. or more, the proportion of the polyfunctional monomer among the monomers contained in the reaction mixture is 10 to 30 mol%. When the monofunctional monomer has an amino group, the amine infiltration step can be omitted.

Systems and methods are provided for separation of CO.sub.2 from dilute source streams. The systems and methods for the separation can include use of contactors that correspond radial flow adsorbent modules that can allow for efficient contact of CO.sub.2-containing gas with adsorbent beds while also facilitating use of heat transfer fluids in the vicinity of the adsorbent beds to reduce or minimize temperature variations. In particular, the radial flow adsorbent beds can be alternated with regions of axial flow heat transfer conduits to provide thermal management. The radial flow structure for the adsorbent beds combined with axial flow conduits for heat transfer fluids can allow for sufficient temperature control to either a) reduce or minimize temperature variations within the adsorbent beds or b) facilitate performing the separation using temperature as a swing variable for controlling the working capacity of the adsorbent.

A gas purification processing apparatus is described. The gas purification processing apparatus can control the generation of adsorption heat by an adsorbate substance in purification processing and thereby prevent desorption or ignition or the like of the adsorbate component by performing cooling processing on an adsorbent itself when needed. This advantageously ensures high adsorption efficiency with a simple and convenient configuration. During operation of the apparatus, gas is supplied from the source and purified by a purification part and then discharged as a purified gas. When the temperature of the purification part exceeds a predetermined temperature, a cooling medium is supplied from the cooling processing part to cool the purification part.

A filter assembly including a plurality of filter modules, wherein each filter module in the plurality of filter modules includes a frame, a filtration element coupled within the frame, and at least one mating feature. The at least one mating feature of each filter module is configured for selective engagement with the at least one mating feature of another filter module such that the plurality of filter modules are coupled together in a serial arrangement.