Abstract: A method of separating carbon dioxide (CO2) from air, where the method includes: feeding air into a cooler to generate cooled air, the cooled air including nitrogen (N2), oxygen (O2), water (H2O), and CO2; feeding the cooled air to a first adsorption column including a first zeolite adsorbent to selectively capture the H2O from the cooled air, generating dried cooled air; and feeding the dried cooled air to a second adsorption column including a second zeolite adsorbent to selectively capture the CO2 from the dried cooled air, generating a tail gas, wherein the second zeolite adsorbent includes a Linde Type A (LTA) aluminosilicate zeolite that is hydrolyzed and at least partially collapsed.

Abstract: Systems and methods are provided for integrating direct air capture of carbon dioxide with capture of carbon dioxide from a point source. The systems and methods can include exposing an adsorbent to a low CO2 content gas flow (e.g., air) at conditions similar to ambient conditions to perform an initial amount of sorption of CO2. The initial sorption results in a partially loaded sorbent having a first sorbent loading. The partially loaded sorbent can then be exposed to a flue gas and/or other gas flow that contains a higher CO2 content. This allows a second sorption step to be performed using a higher CO2 content gas, resulting in an additionally loaded sorbent having a second (higher) sorbent loading. The sorbed CO2 can then be desorbed from the sorbent.

Abstract: A filter assembly has a housing. The housing has an inner body and an outer body surrounding at least a portion of the inner body. The inner body has a base extending in a lateral direction and a first sidewall extending axially outward from the base. The inner body defines a cavity. The first sidewall defines a perimetric surface around the cavity. A first filter media extends across the perimetric surface and across the cavity. An adsorbent is disposed in the cavity. The outer body has a second sidewall laterally outward from and surrounding the first sidewall. The second sidewall spans at least 50% of the axial length of the first sidewall. The outer body has a first axial end and a second axial end and a retainer portion extending laterally inward from the first axial end. The retainer portion is positioned axially outward from the first filter media.

Abstract: Embodiments include a filter material including an electrospun nanofiber membrane and an active nanomaterial agent incorporated into the electrospun nanofiber membrane, wherein the electrospun nanofiber membrane filters disease-causing agents and the wherein the active nanomaterial agent degrades disease-causing agents. Embodiments further include a face mask and/or respirator including a filter material, wherein the filter material includes an electrospun nanofiber membrane and an active nanomaterial agent incorporated into the electrospun nanofiber membrane, wherein the electrospun nanofiber membrane filters disease-causing agents and the wherein the active nanomaterial agent degrades disease-causing agents.

Abstract: A system and method for improving the water quality of a dehydration tower in a purified terephthalic acid device includes a dehydration washing device, a tail gas condensation device communicating with the top of the dehydration washing device, and a water separation device communicating with the tail gas condensation device. The system reduces energy consumption. The tail gas condensation device uses low-pressure vapor of about 0.05 MPa generated by an Nm-th-stage condenser as a heating medium. Working media are water and the low-pressure vapor, and no organic phase is involved in a process, and a reaction is stable and intrinsically safe. The water in the water separation tower is purified water and concentrated water, the purified water is returned to the top of the dehydration tower, and the concentrated water is mixed with a mother liquor and then enters the dehydration tower.

Abstract: A sorption filter device includes a sorption filter element including at least two sorption bodies with at least one sorbent, the at least two sorption bodies being arranged in a V-shape and enclosing an intermediate space that is open at a head side thereof, an outer sealing element running around an outer circumference of the head side, and an inner sealing surface arranged at the head side and running around a circumference delimiting the intermediate space at the head side. The sorption filter device further includes a housing including a first housing part configured to receive the sorption filter element, and a second housing part detachably connectable to the first housing part and configured to close the housing in a closed state thereof, the sorption filter element being received in the first housing part in such a way that the head side faces the second housing part.

Abstract: A system for separating salt and/or minerals from ocean, sea, brackish, or brine water collected in a water enclosure. The water enclosure is heated with solar radiation to increase a rate of evaporation of the saline water and produce humidity or moisture within the water enclosure for conversion to desalinated water. Due to condensation, water collects as droplets on cold surfaces of cooling coils when the humidity or moisture comes in contact with the cold surfaces of the cooling coils. The water droplets, which are desalinated, are gathered by condensation capture pans. Output lines channel the collected desalinated water out of the pans for consumption and/or storage. Re-saturation units increase a rate of condensation within the water enclosure, thereby, increasing a collection of the desalinated water.

Abstract: A method for washing and purification with a low-temperature methanol at least includes the following steps: condensing a raw shift gas and conducting a gas-liquid separation to obtain CO2-containing liquid and a separated raw material gas; and vaporizing the CO2-containing liquid and reducing a pressure by an expansion to obtain a CO2-containing gas; and washing the separated raw material gas with a methanol to obtain a purified gas. The present application combines CO2 condensation and an expander, so that the load of cooling capacity of the system for washing with a low-temperature methanol is reduced by 60%. At the same time, the external work done by the expander reduces the energy consumption of the system. After the CO2 in the purifying gas of desulfurization in the section A of the scrubber is condensed, the amount of CO2 entering the section B is reduced.

Abstract: The present disclosure provides a dust control system for use with a spot dust filter mounted on industrial equipment, comprising a housing positioned between the spot dust filter and the industrial equipment, the housing defining an internal chamber, a plenum within the housing configured to accommodate pressure changes, a first valve positioned to control airflow between the spot dust filter and the industrial equipment, a second valve and a third valve arranged in series to form an airlock mechanism for controlling dust discharge into the industrial equipment, and a control system configured to intercept a cleaning signal from the spot dust filter and coordinate operation of the first valve, second valve, and third valve to isolate cleaning pulses from the industrial equipment while allowing collected dust to be discharged into the industrial equipment through the airlock mechanism.

Abstract: A polypropylene composition (PC) comprising: a. from 95.0 to 99.99 wt.-%, of a polypropylene (PP), preferably a propylene homopolymer (HPP); and b. from 0.01 to 5.0 wt.-%, of a compound according to Formula (I), wherein each R is independently selected from C1 to C6 alkylene, C2 to C6 alkenylene and a single bond, each R? is independently selected from H and C1 to C6 alkyl, each R? is independently selected from H and C1 to C22 alkyl, wherein each alkylene, alkenylene and alkyl group may optionally be substituted by deuterium or fluorine, and the two substituents on the central benzene ring may be either positioned in an ortho, meta or para relationship; wherein the polypropylene composition (PC) has an MFR2 of from 400 to 5000 g/10 min and a melting temperature Tm of from 140 to 170° C.

Abstract: The disclosed technology relates to air filters and filter assemblies for filtering particulates from air, and more particularly to for filtering paint particulates from air. The disclosed technology can include a filter support frame having a plurality of air filter receptacle shelves configured to support a plurality of air filter boxes, a tray receptacle configured to receive a removable tray, an inlet configured to receive a mixture of air and particulates and channel a mixture of air and particulates across the removable tray toward the plurality of air filter boxes, an outlet configured to receive filtered air from the plurality of air filter boxes and channel the filtered air out of the filter support frame, and a base configured to support a removable plenum. The removable tray can be configured to collect particulates.

Abstract: Solar thermal panel (1) for producing water, comprising a frame (2), a reflective solar concentration surface (3), a heat exchanger (10) which is positioned at the solar focusing axis (A) and comprising a container (11) comprising an ambient humidity desiccator material (11a?), at least one opening (12), a first valve (13) which is positioned at the at least one opening (12) and selectively actuatable by moving from an open configuration to a closed configuration so as to selectively and reversibly allow the fluid-dynamic connection between the desiccator material (11a) and surrounding ambient air.

Abstract: Chemical precursor recovery systems and methods of recovering and reusing semiconductor manufacturing chemistry are disclosed. The recovery systems include a cold trap inlet line in fluid communication with a plurality of cold traps and a cold trap outlet line. The plurality of cold traps is configured to condense the chemical precursors and are arranged based on semiconductor manufacturing process conditions.

Abstract: A scrubber for cleaning exhaust fumes generated by internal combustion engines, in particular for reducing the concentration of the sulfur oxides SOx in exhaust fumes generated by the combustion of high sulfur content fuels, said scrubber comprising a main hollow tubular body, an inlet and an outlet for introducing and discharging said fumes into and from said main hollow tubular body, respectively, and inlet means for introducing at least partially atomized pressurized water into said main hollow body, wherein said inlet means comprise a plurality of nozzles arranged in said main hollow body and each adapted to dispense said at least partially atomized pressurized water.

Abstract: Provided is a household oxygen generator. The household oxygen generator includes a housing. A compression mechanism, a first air path module and an oxygen generation mechanism which are communicated in sequence are disposed in the housing. The first air path module includes a flow guide pipeline, a movable pipeline and a locking assembly. The movable pipeline is movably connected to the flow guide pipeline. The locking assembly is in transmission connection with the movable pipeline. The flow guide pipeline is connected to the oxygen generation mechanism. The locking assembly has a locking position and an unlocking position. When the locking assembly is in the locking position, the movable pipeline is clamped to or inserted into an air inlet of the oxygen generation mechanism. When the locking assembly is in the unlocking position, the movable pipeline is separated from the air inlet of the oxygen generation mechanism.

Abstract: The present invention relates to the thermoacoustic separation of sparse or dilute particulates, liquids, or gases from any substance whose motion is appropriately described by hydrodynamics. It is applicable in a broad range of scientific and industrial contexts because it is designed to partially reverse the process of mixing, albeit at a significant energy cost. Relative to similar devices, it is novel because it has been configured to process material in a continuous flow, so operates without the use of a closed, fixed-volume separation chamber. When operated at high throughput, this device is designed to capture significant quantities of valuable but sparse commodities from large volumes of multi-component mixtures, on industrially-competitive timescales, without necessitating chemical inputs or strong electromagnetic fields.

Abstract: A separator system and method may provide a four-way separator that may separate a material and remove a hazardous material. The hazardous material may include gas and sand that may be removed by the four-way separator. The separator system and method may further provide a main unit that may include three chambers or recirculation hoppers, an auger sand extractor, and a strap tank. The separator system and method may provide a faster rig-up time and may be exclusively driven by hydraulics.

Abstract: A device for reducing gas density in a liquid phase refrigerant in a refrigeration system is provided, the device comprising; a fluid inlet; a first outlet; a second outlet; a conduit, linking the fluid inlet to the first and second outlets; and a baffle, arranged within the conduit between the accelerator and the first outlet; wherein, the accelerator is configured to accelerate fluid from the fluid inlet towards the outlets, thereby separating out saturated gas in the fluid to reduce the gas density in the fluid; and the baffle is configured to direct the flow of lower gas density fluid towards the second outlet, and allows higher gas density fluid to pass around the baffle towards the first outlet. By providing a device in this manner, the energy efficiency and quality of refrigeration in a refrigeration system is improved.

Abstract: A method for preparing a gas sweetening system for less shutdown time is provided. The method includes stopping a sour gas feed to a gas sweetening system, and raising the set point for a temperature of a lean amine cooler to about 150° F. The H2S concentration in a lean amine is monitored. The preparation of the gas sweetening system for maintenance is completed when the H2S concentration reaches a target value.

Abstract: Embodiments disclosed herein relate to a pleated filter element having filter media having a downstream layer of filter material and an upstream layer of fibers. A spacing structure defines a void space between the upstream layer of fibers and the downstream layer of filter material.