Abstract: An air purifier, including: a first body including a first housing; and a second body detachably connected to the first body and including a second housing, where buckles are arranged on the first housing, and snap-fit members are arranged on the second housing; the number of the buckles is greater than the number of the snap-fit members; and the first body in butt joint is enabled to rotate relative to the second body, so that the buckles can be hooked with the snap-fit members or separated from the snap-fit members. In the air purifier, a larger number of buckles are hooked with a smaller number of snap-fit members, so that disassembly and assembly operations can be simplified. Because the first body and the second body are detachable, the second body can be operated independently when the filter screen is detached.

Abstract: A vehicle air conditioning system includes: a dehumidifying device; a power source; an inflow pipe for allowing air from a vehicle interior or a vehicle exterior to flow into the dehumidifying device; a first outflow pipe for returning the air that has been dehumidified by the dehumidifying device to the vehicle interior; a second outflow pipe through which the air containing moisture released by a regeneration process of the dehumidifying device is circulated; and a switching valve provided at a branch portion between the first outflow pipe and the second outflow pipe, the switching valve being capable of switching the flow of the air to the first outflow pipe or the second outflow pipe. A mist separator including a filter for removing the moisture is provided in the second outflow pipe. The second outflow pipe merges with the first outflow pipe on a downstream side of the mist separator.

Abstract: Disclosed are a pollutant capturer and mobilizer and method of mobilizing a polluted gaseous substance from one location towards another location and capturing one or multiple types of polluting substances, such as CO2, from an atmospheric body of polluted gaseous substance or from exhaust of vehicles, chimneys, or stacks and thereby combat the negative health, environmental, and economic impacts of the of the polluting substances on communities. Wet or dry embodiments of the pollutant capturer and mobilizer utilize wet or dry pollutant capturing components, respectively, to capture one or multiple types of polluting substances from a body of polluted gaseous substance. Flow-establishing devices can be used to set the body of polluted gaseous substance in motion through the pollutant capturing component. The pollutant capturer and mobilizer may also be mounted on any type of vehicle, with or without using flow-establishing devices.

Abstract: An air purification device includes an outer shell, an inner shell, a filter element, and an impeller. The outer shell has a first air outlet hole and a second air outlet hole arranged on opposite sides. The inner shell is disposed in the outer shell and includes a shell body and a volute. The shell body has a plurality of air inlet holes, and the filter element is arranged corresponding to the air inlet holes. One end of the volute communicates with the air inlet holes, and the other end communicates with the outer shell. The air inlet holes, the volute, and the first air outlet hole define a first air duct, and the air inlet holes, the volute, and the second air outlet hole define a second air duct. The impeller is rotatably connected to the shell body and is disposed in the volute.

Abstract: A method for separating gaseous carbon dioxide from a gas mixture having the following steps: (a) contacting the gas mixture with sorbent material to allow gaseous carbon dioxide to adsorb under ambient conditions, using a speed of the adsorption gas flow; (b0) isolating the sorbent with adsorbed carbon dioxide from said flow-through of gas mixture; (b1) injecting a stream of saturated steam at ambient conditions and inducing an increase of the temperature of the sorbent to a temperature between 60 and 110° C., (b2,b3) extracting at least the desorbed gaseous carbon dioxide while still injecting or circulating steam at ambient atmospheric pressure conditions into the unit; and (c) bringing the sorbent material to ambient atmospheric temperature conditions. The speed of steam flow through the unit in step (b1) or on average in steps (b1)-(b3) is in the range of 0.5-10 times the speed of the adsorption in step (a).

Abstract: In order to address the sustainability and environmental issues associated with conventional HVAC filters, inventive HVAC filters have been developed that are completely biodegradable and compostable and exhibit Minimum Efficiency Reporting Value (MERV) ratings that are superior to conventional HVAC filters. More particularly, it has been discovered that biodegradable electrospun nanofibers can be used to produce biodegradable HVAC filters that exhibit superior filtration performance relative to conventional HVAC filters produced from polypropylene electrostatic media or triboelectric nonwoven media.

Abstract: A method for managing a pressure swing adsorption gas treatment unit, the unit having at least N adsorbers, N being a number greater than or equal to 6. Wherein, when a first group and a second group each comprise at least one operational adsorber and at least one defective adsorber. A method including a) shutting down the unit, b) isolating the defective adsorbers from the unit, c) configuring the connections to swap the instrumentation means of the defective adsorber of the first group with the instrumentation means of the operational adsorber of the second group, so that the first group once again, so far as the control device is concerned, comprises n operational adsorbers, and d) setting the control device so that it controls the unit by running the downgraded cycle, excluding the second group.

Abstract: A taking up/receiving system (100) and a process for taking up/receiving of gas from a medical apparatus (1) are provided. The taking up/receiving system includes a feed line (6), a discharge line (8), a filter unit (4) with a filter and at least one buffer storage device. The feed line establishes a fluid connection between the medical apparatus and the filter unit. The discharge line establishes a fluid connection between the filter unit and a fluid taking up/receiving unit (7). The gas is discharged from the medical apparatus and is passed through the feed line to the filter unit and from there through the discharge line to the fluid taking up/receiving unit. The filter filters at least one gas component out of the gas that is passed through the filter unit. The one or more buffer storage device absorbs and again discharges gas from time to time.

Abstract: A method and an apparatus are disclosed for analyzing an absorption filtering medium that filters volatile organic substances in a process gas in a dehumidification plant for dehumidifying polymer granules, with a fan that generates a flow of gas through the filtering medium, an analyzer for analyzing the concentration of total organic carbon, a sensor for detecting pressure downstream of the filtering medium, in which the state of saturation and/or the absorbent capacity and/or the deterioration over time of the filtering medium is determined by a comparison of the measured concentrations of the total organic carbon in the flow of gas upstream and downstream of the filtering medium.

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.