Abstract: A ventilator, including an enclosure; a tubing configured to receive an input gas; a flow outlet airline in fluid communication with the tubing, wherein the flow outlet airline includes an airline outlet, and the flow outlet airline is configured to supply an output gas to a user via the airline outlet; a breath detection airline including an airline inlet, wherein the airline inlet is separated from the airline outlet of the flow outlet airline, and the breath detection airline is configured to receive breathing gas from the user during exhalation by the user via the airline inlet; a pressure sensor in direct fluid communication with the breath detection airline, wherein the pressure sensor is configured to measure breathing pressure from the user, and the pressure sensor is configured to generate sensor data indicative of breathing by the user.

Abstract: An energy recovery system for an air handling unit includes a support frame, an energy recovery wheel, and a wheel actuator. The support frame supports the energy recovery wheel within the air handling unit. The energy recovery wheel is configured to rotate about a rotation axis during operation. The wheel actuator is configured to drive the energy recovery wheel to rotate about the rotation axis.

Abstract: A spray booth especially adapted for painting operations having a dry filter module with features for allowing changing of the filters quickly and in a contained environment, which reduces exposure to non-authorized and non-properly-protected personnel. A carousel-like filter module flips a wall to move dirty filters into a containment space while placing clean filters in position to continue the painting process. The process and device in accordance with this invention is safe, repeatable, predictable, and capable of changing a large number of filters in a short period of time, for example, during lunch break or other short break in the painting operation.

Abstract: The present disclosure relates to a drier cartridge that can improve the effect of cleaning compressed air by filtering out water, oil, and foreign substances, which are contained in compressed air, through several steps therein. In particular, when a narrow compressed air channel is formed between a cartridge body and a cartridge housing, a collision member that is a pre-filtering member that can primarily filter out oil, etc. is formed between the cartridge body and the housing, whereby it is possible to improve the performance of removing oil and water from a filter cartridge.

Abstract: An air suspension system includes an air suspension, a compressor, a dryer apparatus, and so forth. The dryer apparatus includes a dryer case, an inner cylinder, a first inlet port, a first outlet port, a first desiccant, an outer cylinder, a second inlet port, a second outlet port, a second other-end side filter, a second desiccant, and so forth. The first desiccant comprises a molecular sieve, for example, which exhibits high water adsorption performance at high temperature. On the other hand, the second desiccant comprises silica gel, for example, which exhibits high water adsorption performance at low temperature.

Abstract: A portable oxygen concentrator designed for medical use where the adsorbent beds, are designed to be replaced by a patient. The concentrator is designed so that the power supply and adsorbent bed mount is one module and the compressor and air filter are part of another module configured to provide a unitary cooling and air supply system. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation.

Abstract: A device for arrangement in a container of a sorption dryer for a fluid, wherein a cartridge for accommodating a drying agent can be inserted into the container, wherein the device has at least one projection and/or at least one recess on a front side, wherein the projection and/or the recess is arranged eccentrically on the front side.

Abstract: Lightweight, small, portable devices and methods are disclosed that provide oxygen-enriched air using an ultra rapid adsorption cycle based on advanced molecular sieve materials.

Abstract: A dehydrator for dehydrating air supplied to a power related or mechanical device includes a first container configured to hold a desiccant, a first heater arranged with the first container configured to heat the desiccant in the first container, a second container configured to hold a desiccant, and a second heater arranged with the second container configured to heat the desiccant in the second container. The dehydrator further includes a conduit configured to selectively connect one of the first container and the second container to the power related or mechanical device and a controller configured to selectively operate one of the first heater and the second heater.

Abstract: In order to provide a technique for enriching a combustible gas that allows enrichment of the combustible gas to a higher concentration in an efficient manner with minimization of loss of a source material, there are provided an adsorption tower charged with an adsorbent, a feeding/discharging means for feeding a source gas containing a combustible gas and air, a collecting means for desorbing the combustible gas adsorbed to the adsorbent and collecting the desorbed gas, a controlling means for sequentially effecting a combustible gas adsorption process and a combustible gas desorption process, a detecting means for detecting the concentration of the combustible gas in the source gas, and an operation condition setting section for varying an adsorption completion timing for the controlling means to complete the adsorption process, based on the combustible gas concentration detected by the detecting means.

Abstract: A fuel vapor processing apparatus may include a latent heat storage material that releases latent heat during desorption of fuel vapor from an adsorption material.

Abstract: Apparatus and methods are disclosed that allow for the monitoring and analysis of production process data for a multi-step asynchronous cyclic production process (e.g. pressure swing adsorption) in a steady state plant (such as a steam methane reforming plant). Data collected from cooperating sensors is processed applying a moving window discrete Fourier transform (DFT). The transformed data can be further analyzed in the broader steady-state plant environment to accurately detect any process anomalies and avoid false alarms.

Abstract: High volumetric-efficiency thermally integrated systems for capturing a target gas from a process gas stream include a monolithic body and a distribution system. The monolithic body includes a first plurality of channels and a second plurality of channels each having sorbent surfaces that reversibly adsorb the target gas. The channels are in thermal communication such that heat from an exothermic adsorption of target gas in one plurality of channels is used by an endothermic desorption of target gas from the other plurality of channels. Methods for separating a target gas from a process gas stream include switching the high volumetric-efficiency thermally integrated systems between a first state and a second state. In the first state, the first plurality of channels undergoes desorption while the second undergoes adsorption. In the second state, the second plurality of channels undergoes desorption while the first plurality undergoes adsorption.

Abstract: Provided is an air drying system that includes a desiccant container including desiccant material for removing moisture from a pressurized air stream directed through the container in a first direction, a heater coupled to the container for selectively providing heated air to the container in a second direction opposite the first direction, and an air source coupled to the container for selectively providing cooled air to the container in the first direction. By introducing the cooled air in the opposite direction as the heated air, the duration of the cooling can be extended to allow for further removal of adsorbed moisture from the desiccant, thereby lowering the dew point. The extended duration of cooling also allows for additional removal of heat from the desiccant container to minimize heat spikes when the desiccant container is switched to the adsorbing cycle.

Abstract: A regeneration controller for an air dryer on a vehicle includes a location identifier that determines a current location, a regeneration profile identifier that selects a regeneration profile based on the current location, and a regeneration initiator that initiates regenerations of the air dryer based on the regeneration profile.

Abstract: Methods for releasing associated guest materials from a metal organic framework are provided. Methods for associating guest materials with a metal organic framework are also provided. Methods are provided for selectively associating or dissociating guest materials with a metal organic framework. Systems for associating or dissociating guest materials within a series of metal organic frameworks are provided. Thermal energy transfer assemblies are provided. Methods for transferring thermal energy are also provided.

Abstract: A fuel vapor removal method for an aircraft includes removing an ullage mixture from ullage of a fuel tank of an aircraft, exposing the ullage mixture to adsorption media on the aircraft to reduce its fuel-air ratio, and returning the reduced fuel-air ratio ullage mixture to the fuel tank. A fuel vapor removal system onboard an aircraft includes a fuel tank, having ullage containing an ullage mixture, a pumping device, configured to pump the ullage mixture in a closed loop from the fuel tank ullage and back, an adsorption system, interposed in the closed loop, and a controller, including a microprocessor and system memory. The adsorption system includes an adsorber having adsorption media capable of adsorbing fuel vapor from the ullage mixture, and the controller is programmed to activate the pumping device, to pump the ullage mixture from the ullage, through the adsorption system, and return a reduced fuel-air ratio ullage mixture back to the ullage.

Abstract: A method and apparatus are disclosed for controlling a concentration of carbon dioxide in a gaseous atmosphere within a closed environment of a refrigerated transport container to maintain the concentration of carbon dioxide therein at a desired level. A carbon dioxide scrubber apparatus operates alternately in an adsorption mode and a regeneration mode. When a perishable produce is stowed in the closed environment, for example in a cargo box of a refrigerated transport container, the concentration of carbon dioxide may be maintain at a desired level to retard ripening of the perishable produce.

Abstract: Apparatus and methods are disclosed that allow for the monitoring and analysis of production process data for a multi-step asynchronous cyclic production process (e.g. pressure swing adsorption) in a steady state plant (such as a steam methane reforming plant). Data collected from cooperating sensors is processed applying a moving window discrete Fourier transform (DFT). The transformed data can be further analyzed in the broader steady-state plant environment to accurately detect any process anomalies and avoid false alarms.

Abstract: A dehydrator for dehydrating air supplied to a power related or mechanical device includes a first container configured to hold a desiccant, a first heater arranged with the first container configured to heat the desiccant in the first container, a second container configured to hold a desiccant, and a second heater arranged with the second container configured to heat the desiccant in the second container. The dehydrator further includes a conduit configured to selectively connect one of the first container and the second container to the power related or mechanical device and a controller configured to selectively operate one of the first heater and the second heater.

Abstract: Described herein are various embodiments of an oxygen concentrator system that includes a home oxygen concentrator system couplable to a portable oxygen concentrator system.

Abstract: Provided herein are methods and apparatus for capturing or otherwise decreasing the amount of CO2 in an exhaust stream. The separation process for removing CO2 from a waste stream preferably operates substantially at atmospheric pressure and at a preselected temperature, and without the need of thermal swing regeneration. This novel elimination of the heat up and cool down periods allows the inventive cycle herein to be run faster, and more efficiently than in previously known systems. Further, in some examples herein, the heat of adsorption is used to provide the heat of regeneration.

Abstract: Pressure swing adsorption purification unit (PSA unit) comprising: N adsorbers comprising N inlets and N outlets with N?2; at least one rotary distributor connected via N connections to the N inlets or to the N outlets of the N adsorbers; and characterised in that each of these N connections comprises a means for regulating a flow rate.

Abstract: A cyclic adsorption process is provided, the process containing one or more adsorber vessels undergoing the steps of at least pressurization and depressurization and driven by one or more variable speed centrifugal machines operating under acceleration and deceleration conditions and adjusted to the steps, vessel size, and process conditions employed, wherein the process cycle time is greater than the ratio of the change in inertia, defined the maximum energy that can be lost during a cycle due to inertia changes, to 0.3 times the total power of the one of more centrifugal machines that would be consumed in the absence of inertial effects.

Abstract: Agglomerate comprising a first phase change material (PCM) and a constituent having a density greater than 800 kg/m3 and forming the core of said agglomerate.

Abstract: A hydrogen extraction system is provided. The extraction system can comprise a compressor for compressing a gas mixture comprising hydrogen and a desulfurization unit for receiving the compressed gas mixture. The system can also comprise a hydrogen-extraction device for receiving a reduced-sulfur gas mixture and a hydrogen storage device for receiving an extracted hydrogen gas. A method of extracting hydrogen from a gas mixture comprising natural gas and hydrogen, and a method of determining an energy price are also provided.

Abstract: Provided are encased parallel channel adsorbent contactor apparatus and systems and swing adsorption processes related thereto. Encased parallel channel adsorbent contactors are useful in swing adsorption processes. A plurality of the encased adsorbent contactors are loaded and sealed together in a swing adsorption vessel such that substantially an entire feed stream must pass through the channels of the contactors and not through stray gaseous stream paths between contactors.

Abstract: A method and apparatus for regenerating the media of a rotary sorption concentrator system includes passing a 600° F. to 1000° F. regeneration fluid stream through a rotating media in a first isolated zone to regenerate the media and remove contaminants from the media that are not removed during a typical desorption cycle of a rotary sorption concentrator system.

Abstract: Provided are apparatus and systems having a rotary valve assembly and swing adsorption separation techniques related thereto. The methods utilize a rotary valve assembly to perform swing adsorption processes. The rotary valve assembly includes a feed stator having at least two annular tracks. Each of the annular tracks has an opening to permit fluid flow therethrough. A feed rotor is connected to the feed stator. The feed rotor has at least two annular tracks. Each of the annular tracks has an opening to permit gas to flow therethrough. A bed of adsorbent material may be connected to the feed rotor.

Abstract: Systems and methods for producing a product gas are provided. In one embodiment, a plurality of gas separation assemblies separate adsorbable components from a gas source using a plurality of micro-pumps to create gas flow through the gas separation assemblies. Various embodiments include implementation of various pressure swing adsorbtion (PSA), vacuum swing adsorbtion (VSA), and vacuum pressure swing adsorbtion (VPSA) systems utilizing the gas separation assemblies with micro-pumps. In other embodiments, micro-pumps and micro-pump assemblies are arranged in various configurations capable of providing a range of pressures and flow rates.

Abstract: Described herein are various embodiments of an oxygen concentrator system In some embodiment, an oxygen concentrator system includes improved charging and battery control circuits.

Abstract: A system and method recover water from an ambient airstream. Dehumidification of the airstream is also achieved by removal of the water. A device of the system includes a chamber having a group of trays that hold respective amounts of liquid desiccant in each tray. A foam media absorbs the desiccant to increase an exposed surface of the desiccant to the airstream. Fans and valves are used to control airflow through the device. A charge cycle circulates air through the device to remove water vapor from the airstream. A subsequent extraction cycle removes water collected in the liquid desiccant by a condenser communicating with the chamber. An integral heat exchanger adds heat to the chamber during the extraction cycle. A controller is used to integrate and manage all system functions and input variables to achieve a high efficiency of operational energy use for water collection.

Abstract: A system and method recover water from an ambient airstream. Dehumidification of the airstream is also achieved by removal of the water. A device of the system includes a chamber having a group of trays that hold respective amounts of liquid desiccant in each tray. A foam media absorbs the desiccant to increase an exposed surface of the desiccant to the airstream. Fans and valves are used to control airflow through the device. A charge cycle circulates air through the device to remove water vapor from the airstream. A subsequent extraction cycle removes water collected in the liquid desiccant by a condenser communicating with the chamber. An integral heat exchanger adds heat to the chamber during the extraction cycle. A controller is used to integrate and manage all system functions and input variables to achieve a high efficiency of operational energy use for water collection.

Abstract: This invention provides a dynamic hydrogen-storage apparatus and the method thereof, which includes the following steps: (a) filling a container with a porous hydrogen-storage material which is loaded or doped with a catalyst; (b) setting an operational pressure and a pressure drop for the operation of storing hydrogen; (c) providing the hydrogen-storage material with a hydrogen so as to increase the pressure of the hydrogen to the operational pressure; (d) decreasing the pressure of the hydrogen by the pressure drop; and (e) repeating steps (c) and (d) for a predetermined amount of times.

Abstract: A pollutant removal system for use with a power generation system includes a particulate control device configured to remove particulates from a flue gas stream produced within the power generation system. The particulate control device is cleaned on a predetermined cleaning cycle. The pollutant removal system also includes a sorbent control system for controllably injecting a sorbent into the flue gas stream upstream of the particulate control device. The sorbent control system is configured to adjust a sorbent injection rate as a function of the cleaning cycle.

Abstract: A modular and compact adsorbent bed structure is disclosed for use in an adsorption-based gas separation plant. The conventional adsorbent bed in a gas separation plant is replaced with a plurality of modular adsorbent bed units connected to make the adsorbent bed structure. The modular design requires lower fabrication and maintenance costs; is easier to transport; and is easier to load with adsorbent material.

Abstract: The present invention provides for a method utilizing adsorber bed(s) and reversible blower(s) operating in a vacuum pressure swing adsorption separation process to separate gases. The process is designed to provide a safer and more cost-effective adsorption system that captures and utilizes energy typically wasted during equipment transitions thereby achieving overall higher power efficiency.

Abstract: The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM <9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity.

Abstract: A process for separating methane from a natural gas mixture employs pressure swing adsorption in one or more vessels. Each vessel has an adsorbent material having a kinetic selectivity for contaminants over methane greater than 5. Contaminants within the natural gas mixture become gases kinetically adsorbed within the adsorbent material. The vessel is placed under pressure to cause contaminants to be adsorbed in the surfaces and micro-pores of the adsorbent material. The process includes releasing a product stream comprised at least 95% by volume methane from a first gas outlet in the vessel, and desorbing the contaminant gases from the adsorbent material by reducing the pressure within the vessel. The desorbing step is done without applying heat to the vessel, thereby delivering a waste gas stream comprised at least 95% by volume of the contaminant gases. An improved fractionation vessel having both major and minor flow channels is also provided.

Abstract: A cyclic adsorption process is provided, the process containing one or more adsorber vessels undergoing the steps of at least pressurization and depressurization and driven by one or more variable speed centrifugal machines operating under acceleration and deceleration conditions and adjusted to the steps, vessel size, and process conditions employed, wherein the process cycle time is greater than the ratio of the change in inertia, defined the maximum energy that can be lost during a cycle due to inertia changes, to 0.3 times the total power of the one of more centrifugal machines that would be consumed in the absence of inertial effects.

Abstract: A regeneration controller for an air dryer on a vehicle includes a location identifier that determines a current location, a regeneration profile identifier that selects a regeneration profile based on the current location, and a regeneration initiator that initiates regenerations of the air dryer based on the regeneration profile.

Abstract: A ductless fume hood suitable for the removal of various chemical materials including toxic and non-toxic gases, vapors, particles, dust and unpleasant odors from a fluid stream. The ductless fume hood uses electronic devices and software to enable real time monitoring of gas levels in parts per million.

Abstract: A fuel vapor processing apparatus may include a latent heat storage material that releases latent heat during desorption of fuel vapor from an adsorption material.

Abstract: High volumetric-efficiency thermally integrated systems for capturing a target gas from a process gas stream include a monolithic body and a distribution system. The monolithic body includes a first plurality of channels and a second plurality of channels each having sorbent surfaces that reversibly adsorb the target gas. The channels are in thermal communication such that heat from an exothermic adsorption of target gas in one plurality of channels is used by an endothermic desorption of target gas from the other plurality of channels. Methods for separating a target gas from a process gas stream include switching the high volumetric-efficiency thermally integrated systems between a first state and a second state. In the first state, the first plurality of channels undergoes desorption while the second undergoes adsorption. In the second state, the second plurality of channels undergoes desorption while the first plurality undergoes adsorption.

Abstract: The present invention relates generally to a composite adsorbent comprising at least a zeolite-containing CO2 removal adsorbent and 10% or more of a metal oxide having a heat capacity of at least 20 cal/mol-° K (83.7 J/(mol·K). The composite is preferably used in a multi-layered adsorption system in a cyclic adsorption process. The adsorption system comprises two or more layers wherein the first layer is at least a water vapor removal adsorbent, such as activated alumina, and the second layer is the novel composite adsorbent. The adsorption system is preferably used in a PSA prepurification process prior to cryogenic air separation.

Abstract: A cyclic adsorption process is provided, the process containing one or more adsorber vessels undergoing the steps of at least pressurization and depressurization and driven by one or more variable speed centrifugal machines operating under acceleration and deceleration conditions and adjusted to the steps, vessel size, and process conditions employed, wherein the process cycle time is greater than the ratio of the change in inertia, defined the maximum energy that can be lost during a cycle due to inertia changes, to 0.3 times the total power of the one of more centrifugal machines that would be consumed in the absence of inertial effects.

Abstract: A flammable gas concentration system is described, which includes a concentrating apparatus for acquiring at least a portion of the product gas, concentrating the flammable gas included in the acquired product gas, and generating a high-concentration gas; and a mixer for acquiring the raw gas and the high-concentration gas generated by the concentrating apparatus, mixing the acquired high-concentration gas and the raw gas, and generating the product gas.

Abstract: An active wheel desiccant dehumidifier is controlled for improved energy savings by modulating operation characteristics including process air flow, reactivation air flow, temperatures, and wheel rotation in response to changing conditions.

Abstract: A flammable gas concentration device comprises an adsorption tower filled by an adsorbent for adsorbing a flammable gas. Raw gas containing air and a flammable gas is fed to the adsorption tower via a feeding path and an exhaust gas in the raw gas which has not been adsorbed to the adsorbent is discharged to an outside of the adsorption tower via a discharge path. Pressure in the adsorption tower is reduced lower than an atmospheric pressure, and the flammable gas adsorbed by the adsorbent is desorbed and collected through a collection path. A flammable gas adsorption step of feeding the raw gas to the adsorption tower and discharging the exhaust gas from the adsorption tower, and a flammable gas desorption step of collecting the desorbed flammable gas are sequentially executed.

Abstract: A pollutant removal system for use with a power generation system includes a particulate control device configured to remove particulates from a flue gas stream produced within the power generation system. The particulate control device is cleaned on a predetermined cleaning cycle. The pollutant removal system also includes a sorbent control system for controllably injecting a sorbent into the flue gas stream upstream of the particulate control device. The sorbent control system is configured to adjust a sorbent injection rate as a function of the cleaning cycle.