A smart multi-modal vehicular air filtration management system including a first filter element and a second filter element disposed in a fresh air housing, wherein the fresh air housing has an inlet and an outlet. Additionally, a third filter element is provided which is disposed in a cabin housing, the cabin housing having one or more inlet. A fluid channel arranged between the fresh air and cabin housing. Finally, a diverter is included which is disposed near an outlet of the fresh air housing, wherein the diverter is configured to cause air to flow through the fresh air housing selectively through one or both of the first filter element and the second filter element.

A method of transporting hydrogen and natural gas by means of a natural gas conduit system is proposed, especially by means of an existing natural gas conduit system. According to the invention, the hydrogen is recovered only downstream of one or preferably multiple natural gas consumers. This resulted in a stepwise increase in the hydrogen content in the natural gas-hydrogen mixture transported, and the subsequent recovery of the pure hydrogen can be affected more easily and efficiently.

A system for enhancing adsorption of contaminated vapors to increase treatment capacity of a regenerable, synthetic adsorptive media. The system includes an inlet configured to receive a flow of contaminated vapors. One or more vessels are coupled to the inlet, the one or more vessels each including a regenerable, synthetic adsorptive media therein, are configured to remove contaminants from the vapors by adsorption. A vapor cooling subsystem is coupled to the inlet, and configured to cool the flow of contaminated vapors, thereby increasing the treatment capacity of the regenerable synthetic adsorptive media.

An installation for treating a gas stream includes: a vessel having an inlet for the gas stream for treatment so as to provide a treated gas stream; an outlet for the treated gas stream; and an adsorbent mass. The vessel is bounded by a double wall defining a peripheral enclosure that surrounds the vessel and that comprises an enclosure inlet and an enclosure outlet for the gas stream for treatment, the enclosure outlet being connected to the inlet of the vessel.

A dryer for compressed gas includes a pressure vessel containing a drying zone and a regeneration zone, a drum within the rotation symmetrical part, equipped with a regenerable drying agent; driving means for rotating the aforementioned drum so that the drying agent is successively moved through the drying zone and the regeneration zone, an inlet for the supply of the compressed air to be dried to the drying zone, an outlet for the removal of the dried compressed gas, and a first connection line for branching off of a partial stream of the dried compressed gas and transfer of this partial stream to the regeneration zone. The drying zone is on outlet side is subdivided using a divider into a first outlet zone with which the outlet is connected for the dried compressed gas, and a second outlet zone with which the first connection line is connected.

In a method for operating an adsorption device a laden gas stream is fed to an inlet of a sorption buffer device. In the device the laden gas stream passes through a sorbent for receiving a loading of sorbable substance along a sorption path from the inlet to an outlet. The sorbable substance passes from the gas stream to the sorbent, or vice versa, depending on the loading of the gas stream and the sorbent. During a phase of elevated loading, a region with an elevated loading of the sorbent extends from the inlet along the sorption path. During a phase of reduced loading, the region with the elevated loading of the sorbent is shifted in the direction toward the outlet. Length of the sorption path and quantity of the sorbent in the sorption buffer device are selected for accommodating at least three different regions of elevated loading.

A combined power conversion and carbon capture and recycling subsystem including a fossil fueled oxidation unit, a physical adsorbent CO2 capture medium, rotor, motor, heater, CO2 compressor, diffuser and water storage tank. Exhaust gas from fossil fuel oxidation is scrubbed of CO2 via passage across a physical adsorbent and then released from the adsorbent via fuel oxidation waste heat. High CO2 concentration scrubber exhaust air is then compressed and fed to a diffuser which facilitates dissociation of the CO2 into water where it is temporarily stored for use in watering plants. Carbon from fossil fuel is recycled back into the environment and permanently stored as biomass by natural means of photosynthesis.

Several embodiments of the present technology are directed to the removal of one or more air pollutants using cooling and/or calcium-containing particles. In some embodiments, a method for removing air pollutants comprises flowing a gas stream having calcium-containing particles and one or more of mercury or hydrochloric acid molecules, and cooling the gas stream, thereby causing at least a portion of the calcium-containing particles to adsorb to the mercury and/or hydrochloric acid molecules in the gas stream. The method can further comprise, after cooling the gas stream, filtering the gas stream to remove at least a portion of the calcium-containing particles having adsorbed mercury and hydrochloric acid.

It is an objective of the present invention to provide a gas separation method by which a removal performance to remove a removal object gas component and a recovery rate to recover a recovery object gas component can be satisfied at the same time, and furthermore, a generation efficiency of a product gas can be improved. A raw material gas g0 is fed to one adsorption vessel 11 of an adsorbing device 10 and a permeated gas g1 is sent out. A pressure of the other the adsorption vessels 12 is made lower than a pressure during adsorption and a desorbed gas g2 is sent out. In accordance with an operating cycle of the adsorbing device 10 or according to a condition of the raw material gas g0 or the like, one of the permeated gas g1 and the desorbed gas g2 that has a lower concentration of a priority removal object gas component than the raw material gas g0 is provided as a return gas to the adsorbing device 10, the priority removal object gas component being a gas component to be preferentially removed.

A method for producing biomethane by purifying biogas from non-hazardous waste storage facilities involves compressing the initial gas flow, introducing the gas flow to be purified into at least one adsorber loaded with adsorbents capable of reversibly adsorbing the VOCs, and subjecting the VOC-depleted gas flow to at least one membrane separation step in order to partially separate the CO.sub.2 and O.sub.2 from the gas flow. The method also involves introducing the retentate from the membrane separation step into at least one adsorber loaded with adsorbents capable of reversibly adsorbing the major portion of the remaining CO.sub.2, subjecting the CO.sub.2-depleted gas flow exiting the adsorber loaded with adsorbents capable of reversibly adsorbing the major portion of the remaining CO.sub.2 to a cryogenic separation step in a distillation column in order to separate the O.sub.2 and N.sub.2 from the gas flow, and recovering the CH.sub.4-rich flow from the cryogenic separation step.