Abstract: Synergy between component parts of desiccants is disclosed that teaches how to augment performance of desiccants in the reduction of humidity. Single component desiccants lack the synergistic effect. The problem of single component deficiency is solved by the disclosed methods that generally engage the synergy between humidity attracting substances and polymeric substances. Synergy is observed in the improved desiccation being greater than the sum of the desiccating effects of the component parts. Resultant products are dual purpose in that they can be used both as desiccants and component parts of packaging materials.

Abstract: In one embodiment, a carbon dioxide capturing system includes an absorber to discharge an absorption liquid having absorbed carbon dioxide, a regenerator to discharge the absorption liquid having released the carbon dioxide, a first line to introduce the absorption liquid discharged from the absorber to the regenerator, a second line to introduce the absorption liquid discharged from the regenerator to the absorber, and a heat exchanger to exchange heat between absorption liquids flowing in the first and second lines. The system further includes a bypass line to branch from the first line between the absorber and the heat exchanger and introduce the absorption liquid to the regenerator without passing through the heat exchanger, a valve on the bypass line, an instrument to measure a value indicating a state of the regenerator, and a controller to control a degree of opening of the valve based on the measured value.

Abstract: Disclosed is a novel adsorbent having excellent adsorption durability and high adsorption efficiency while having improved durability, thereby improving a carbon dioxide (CO2) separation process. A mesoporous cellular foam impregnated with an iron (Fe)-substituted heteropolyacid includes a mesoporous cellular foam support and an Fe-substituted heteropolyacid, and the mesoporous cellular foam impregnated with an Fe-substituted heteropolyacid has superior CO2 adsorption performance and exhibits excellent reproduction performance even after CO2 adsorption and desorption are performed several times through temperature changes, thereby enabling efficient and economical CO2 separation.

Abstract: The horizontal shaft fuel tank cap with charcoal canister includes a fuel tank inner cap and fuel tank outer cap. A hollow room with an upper opening is disposed in the center of the fuel tank inner cap. The fuel tank outer cap is disposed above the fuel tank inner cap. The ventilating pipe is disposed in the hollow room and divides the hollow room into filling room and containing room. The first air outlet leading the fuel vapor to the containing room is disposed on the bottom of the containing room. The second air outlets are disposed in the center of the ventilating pipe. The fuel-absorption substrate is disposed in the filling room. The residuary fuel is drained into the fuel tank under negative pressure of the fuel tank. The filtering performance of charcoal powder can be enhanced since it is exempted from long-time fuel soaking.

Abstract: The present invention is a sorbent-based atmosphere revitalization (SBAR) system using treatment beds each having a bed housing, primary and secondary moisture adsorbent layers, and a primary carbon dioxide adsorbent layer. Each bed includes a redirecting plenum between moisture adsorbent layers, inlet and outlet ports connected to inlet and outlet valves, respectively, and bypass ports connected to the redirecting plenums. The SBAR system also includes at least one bypass valve connected to the bypass ports. An inlet channel connects inlet valves to an atmosphere source. An outlet channel connects the bypass valve and outlet valves to the atmosphere source. A vacuum channel connects inlet valves, the bypass valve and outlet valves to a vacuum source. In use, one bed treats air from the atmosphere source while another bed undergoes regeneration. During regeneration, the inlet, bypass, and outlet valves sequentially open to the vacuum source, removing accumulated moisture and carbon dioxide.

Abstract: The present invention relates to an odor control material consisting of a water-insoluble particulate odor control agent and a thermoplastic water-soluble carrier matrix encapsulating the odor control agent. The carrier matrix dissolves when in contact with an aqueous solution, such as urine and the odor control material is obtained by means of thermoforming. The invention relates also to a method for the preparation of the odor control material and the use of the odor control material in absorbent products. The present odor control material minimizes dusting problems caused by particulate odor control agents in production processes.

Abstract: The present invention relates to a temperature enhanced pressure swing adsorption (TEPSA) process for removing at least two components including a less strongly adsorbed component and a more strongly adsorbed component from a gas mixture, said process comprising using one single heater and at least two adsorber vessels, in each of which repeated cycles comprising an adsorption phase and subsequent regeneration phases.

Abstract: An exhaust-gas aftertreatment device for an internal combustion engine, for use in a motor vehicle, includes an exhaust tract with at least one exhaust pipe and at least one exhaust-gas aftertreatment element. The exhaust-pipe internal wall and/or the at least one exhaust-gas aftertreatment element have/has a vapor-sorbing material forming at least one exhaust-tract-side sorption element.

Abstract: The present invention is a dehumidifier powered by an engine. The dehumidifier recycles waste heat from the engine and other components for the drying process. Moisture is transferred by advection and evaporation from an air stream flowing through the target environment (e.g., building interior) into a hot system air stream.

Abstract: A method and apparatus for removing water from compressed air is disclosed. The method includes the steps of passing a stream of compressed air through a pressure swing adsorption (PSA) dryer. The dryer includes at least one vessel containing a desiccant material bound into pieces, for example tubes, using a polymer binder. The PSA dryer also has a control system for controlling the flow of the compressed air and switching between drying and purging modes. In particular the vessel and desiccant material contained therein are sized to produce a dew point suppression of less than 50° C.

Abstract: Metal-organic framework (MOF) materials particularly useful for adsorbing CO2. More specifically the MOF has pores and comprises zinc ions, oxalate, and a cycloazocarbyl compound. A preferred cycloazocarbyl compound is 1,2,4-triazolate. Methods for making the porous MOH and methods for using the porous MOH for adsorbing CO2.

Abstract: An exemplary single bed reversing blower adsorption based air separation unit is configured to follow the O2 load placed thereon by adjusting flow rates therethrough and power consumption. At least one and preferably multiple pressure sensors sense O2 pressure within an O2 storage region downstream of an adsorber vessel. These sensed pressures are utilized to generate control signals controlling flow rates at locations upstream of the compressor, such as at a reversible blower and an output compressor. Control loops for the blower and the compressor are independent of each other and have different time constants. Effective following of the O2 load is thus achieved without driving the air separation unit into operational conditions outside of design and also maintaining optimal power consumption for the O2 produced, such that efficiency is maintained over a large turndown ratio.

Abstract: A hydrocarbon separation system for an engine fuel supply system is disclosed. The hydrocarbon separation system may include an untreated gas conduit configured to transport a raw gas stream including methane, ethane and higher carbon chainlength hydrocarbon molecules. The system may also include a separator downstream of and fluidly coupled to the untreated gas conduit configured to segregate methane or ethane of the raw gas stream from the higher carbon chainlength hydrocarbon molecules of the raw gas stream. A treated gas conduit may be located downstream of and fluidly coupled to the separator and be configured to transport the methane or ethane of the raw gas stream away from the separator. Lastly, the system may include an electronic controller configured to receive a breakthrough signal and transmit a regeneration signal in response to the breakthrough signal.

Abstract: A filter unit for a canister, which is disposed in a canister and removes foreign substances or powder in air flowing into or discharged from an air port may include a main filter that is a plate connected in a ring shape between an air port and activated carbon to pass air laterally, and configured to filter foreign substances or powder in air, and a top cover thermally bonded to a top of the main filter and configured to transversely distribute air flowing inside through the air port.

Abstract: A fuel vapor storage and recovery apparatus (1) comprising at least one main vapor storage compartment (3) filled with an adsorbent material, at least one vapor inlet port (7), at least one atmospheric vent port (8), and at least one purge port (9). The vapor inlet port (7) being connectable to a fuel tank venting line and the purge port (9) being connectable to an engine air intake line, wherein the main vapor storage compartment (3) comprises a purge buffer zone (14) as well as first vapor distribution chamber (10), wherein the first fuel vapor distribution chamber (10) includes a liquid trap.

Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and containing zinc (hydr)oxide. The first or second filter media particles also contain an amine-functional material. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in breakthrough times for nitrogen dioxide, hydrogen sulfide, ammonia and formaldehyde compared to a device containing only the first filter media particles or only the second filter media particles.

Abstract: The invention relates to a demister (1) configured for installation to a wet-type gas scrubber (2). The wet-type gas scrubber (2) comprises a wet-scrubbing phase (3) and a liquid separation phase (4). The liquid separation phase (4) includes a liquid collecting tank (5) and a cyclonic droplet separation tower (6) attached on the liquid collecting tank for receiving a gas stream therefrom. The demister (1) comprises a mist eliminator unit (A) for removal of liquid droplets in a gas stream. The invention also relates to a method of modifying an existing wet-type gas scrubber (2) by including the demister (1). The invention further relates to a wet-type gas scrubber (2) comprising the demister (1). The demister (1) is a separate integral unit adapted to be removably attachable between the liquid collecting tank (5) and the cyclonic droplet separation tower (6).

Abstract: Provided are apparatus and systems having an adsorbent bed unit for use in a cyclical swing adsorption process. The process is utilized to remove contaminants from a gas feed streams. The adsorbent bed unit includes an assembly of thermal polygon contactors with each of the thermal polygon contactors having one or more internal channels and two or more of the thermal polygon contactors form one or more external channels. The external channels having adsorbent coating that is utilized to remove contaminants from a gas feed streams.

Abstract: A gas separation unit for the separation of carbon dioxide from air is proposed for use in a cyclic adsorption/desorption process and using a loose particulate sorbent material. Sorbent material is arranged in at least two stacked layers, and each layer comprises two sheets of a flexible fabric material which is gas permeable but impermeable to the loose sorbent material. The sheets are arranged parallel defining an inlet face and an outlet face, are arranged with a distance in the range of 0.5-2.5 cm, and are enclosing a cavity in which the sorbent material is located. Said layers are arranged in the unit such that the inflow passes through the inlet face, subsequently through the particular sorbent material located in the cavity of the respective layer, subsequently to exit the layer through the outlet face to form the gas outflow.

Abstract: A method for controlling an adsorption dryer for the treatment of compressed gas includes vessels therein and a valve arrangement for selectively feeding upstream compressed gas to, and outputting dried downstream compressed gas from, the vessels. Compressed gas is fed to at least one of the vessels in a process phase for drying the compressed gas through liquid adsorption by the desiccant bed and removing the adsorbed liquid from the bed in the vessels in a regeneration phase. An ambient value occurring outside both the vessels and downstream compressed gas output is measured. Additional steps include determining a characteristic value based on the measured ambient value, matching the value to criteria associated with stored regeneration phase parameter settings, determining a regeneration phase parameter setting based on the matching of the value, and applying the parameter setting to the regeneration phase for setting a parameter of the regeneration phase.