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AEROSOL MASS SENSOR AND SENSING METHOD

Thu, 06 Apr 2017 08:00:00 EDT

A mass sensor for measuring particle mass within an aerosol uses resonance frequency detection to determine a mass of particles. A heating element is used for heating the resonant sensor element and it is controlled during a sensing cycle, with the change in mass of the deposited particles monitored during heating. This enables a low cost device to be able to detect particle concentration as well as provide information about the chemical and/or physical nature of the particles.



OXYGEN ADSORBENT, OXYGEN MANUFACTURING EQUIPMENT USING THE OXYGEN ADSORBENT AND OXYGEN MANUFACTURING METHOD

Thu, 06 Apr 2017 08:00:00 EDT

An oxygen adsorbent which can be manufactured at a low cost, and an oxygen manufacturing equipment and an oxygen manufacturing method which are capable of producing oxygen-enriched gas at a low cost by using the oxygen adsorbent are provided. The oxygen adsorbent comprises at least an oxide of a perovskite structure. The oxide is represented by a compositional formula of Sr1−xCaxFeO3−σ, wherein 0.12≦x≦0.40, 0≦σ≦0.5 Since this oxide does not include La and Co included in a conventional oxygen adsorbent, it can be manufactured at a low cost.



Process Equipment Contaminant Removal

Thu, 06 Apr 2017 08:00:00 EDT

An apparatus, method and system remove contaminants from a vapor. In an embodiment, a contaminant removal apparatus includes a vacuum box. The vacuum box is a vessel. The apparatus also includes a demister pad disposed in the vacuum box. A vapor is introduced to the vacuum box on an opposing side of the demister pad from a vapor exit from the vacuum box.



ASYMMETRIC GAS SEPARATION MEMBRANE, AND METHODS FOR SEPARATING AND RECOVERING GASES

Thu, 06 Apr 2017 08:00:00 EDT

Disclosed is an asymmetric gas separation membrane made of a soluble aromatic polyimide having a specific repeating unit, the soluble aromatic polyimide including: as a tetracarboxylic acid component, a biphenyl structure and a phenyl structure; as a diamine component, a 3,3′-diaminodiphenyl sulphone and a diaminodibenzothiophene, a diaminodibenzothiophene=5,5-dioxide, a diaminothioxanthene-10,10-dione, or a diaminothioxanthene-9,10,10-trione. Disclosed is a method for selectively separating and recovering a specific gas species from a mixed gas composed of a plurality of gas species using the asymmetric gas separation membrane, a method for selectively separating and recovering a nitrogen-rich gas from air using the asymmetric gas separation membrane, and a method for selectively separating carbon dioxide gas from a mixed gas containing carbon dioxide and methane and recovering methane-rich gas using the asymmetric gas separation membrane.



AIR DRYER CONTROL USING HUMIDITY

Thu, 06 Apr 2017 08:00:00 EDT

A railway air dryer that switches the flow and counter flow of air through each of two desiccant towers in response to the actual humidity of air being dried by the air dryer. The air dryer includes a humidity sensor, a temperature sensor in the outlet air, and a temperature sensor in the inlet air stream to determine when to initiate the regeneration of the desiccant. The air dryer system is generally specified to provide some minimum drying performance, for example 40° C. dew point suppression.



FILTER MEDIUM

Thu, 06 Apr 2017 08:00:00 EDT

By, according to the invention, manufacturing a filter cloth (5, 6) especially to be used in filtering of gas flows, which filter is manufactured in a rolling mill where the individual layers are laminated with a membrane layer (1), to which by the use of a binder (2), such as thermoplastic sheeting, is glued a filter layer (4) with at least one metal layer (3, 13). Hereby is achieved a robust laminate (5, 6), which is, in addition, easy to manufacture in a rolling mill with heated rollers for melting of the binder (2).



SYSTEM AND METHOD FOR REPLACING AIR FILTERS

Thu, 06 Apr 2017 08:00:00 EDT

A system comprising a sensor coupled to a filter having a filter type. The sensor measures pressure drop across the filter and communicates with the controller. An air handler pushes air through the filter and communicates with a controller. The controller comprises an interface connection, a memory, and a microprocessor. The interface connection receives the air flow rate of the air handler and the pressure drop across the filter. The memory stores the relationship between pressure drop and air flow rate for a filter of the same filter type when the filter is clean and when the filter is exhausted. The memory also stores the relationship between pressure drop and the life of a filter of the filter type. The processor determines the remaining life of the filter using the received and stored information. The display receives information from the controller and displays the information.



GAS STRIPPING AND FLUID CONDITIONING APPARATUS AND METHODS OF USE

Thu, 06 Apr 2017 08:00:00 EDT

Systems, apparatuses, and methods for conditioning fluid, for example, to reduce the concentration of a contaminant in a fluid are provided. In one embodiment, the method comprises: introducing a contaminated fluid and a first stripping gas into a first vessel; contacting the contaminated fluid with the first stripping gas to reduce the concentration of a contaminant in the contaminated fluid; transferring the contaminated fluid into a second vessel; introducing a second stripping gas into the second vessel; and contacting the contaminated fluid with the second stripping gas to further reduce the concentration of the contaminant in the contaminated fluid.