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Showing 1 to 14 of 14 for “"Organic Vapors"”.
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Capture and Recovery of Organic Vapors With an Electrothermal -Swing Adsorption System
… ESA technology for the capture and recovery of organic vapors is very encouraging. The new ESA system allowed for rapid electrothermal regeneration and condensation of the adsorbate. This investigation demonstrated the ESA technology's feasibility to successfully operate under realistic …
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Heat transfer coefficients between condensing organic vapors and a vertical copper tube
The condensation characteristics of steam, an organic ester series and an organic alcohol series were investigated. The esters investigated were methyl, ethyl, and n-butyl acetates. Methyl, ethyl and n-butyl alcohols were studied in the alcohol series. Vapors were condensed on the outside of a …
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Experimental and Numerical Evaluation of Electrothermal-Swing Adsorption for Capture and Recovery or Destruction of Organic Vapors
… The model consists of: (a) material balances for organic vapors in the adsorption vessel and (b) energy balances for the adsorbent, carrier gas, vapor, and fittings. The model predicts outlet vapor concentrations, temperature profiles, power requirements, voltage requirements, and current …
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Experimental and numerical evaluation of electrothermal–swing adsorption for capture and recovery or destruction of organic vapors
… of hazardous air pollutants (HAPs) and volatile organic compounds (VOCs) to the atmosphere are serious environmental issues. There were 0.53 billion kg of HAPs and 15 billion kg of VOCs emitted to the atmosphere from anthropogenic sources during 2004 and 2002, respectively. Eighty-nine percent of …
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Microwave -Swing Adsorption for the Capture and Recovery, or Destruction for a More Sustainable Use of Organic Vapors
The MSA-LR system successfully adsorbed organic vapor from the airstreams, allowed for rapid regeneration of the ACFC cartridge, and recovered the adsorbate as liquid for recycle and reuse. The MSA-SST system allowed accurate and precise control of the organic vapor concentration. Chemical …
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Adsorption Properties of Single -Walled Carbon Nanotubes for Air Quality Engineering
… of nanotubes were also determined for pure organic vapors, water vapor and mixtures of organic and water vapor. Adsorption of organic vapors depended mainly on the sample morphology with a maximum uptake equivalent to only ≈50% of the total pore volume of the sample. The adsorption …
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Synthesis and characterization of conducting polymer nanostructures and their application in sensors
… faster and more intensity response to various organic vapors than conventional bulk polyaniline sensors due to their larger surface area. A chemisorption model and a diffusion model were used to fit the sensor response of nanostructured polyaniline sensors. Both models can mathematically fit …
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Modeling and Data Analysis of Conductive Polymer Composite Sensors
… composite sensors for detecting and identifying organic vapors. A novel method was developed to optimize the selection of polymeric materials to be used within a chemiresistor array for anticipated samples without performing preliminary experiments. It is based on the theoretical predicted …
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Development of Graphene Based Gas Sensors
… systematically demonstrated for three different organic vapors, namely acetone, ethanol and acetic acid vapors under the flow of air as a background gas. Out of three vapors, acetic acid vapor was the most sensitive, followed by ethanol and acetone vapors. The sensing mechanism of graphene based …
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Monitoring and control of electrothermal swing adsorption based on electrical properties of the adsorbent
Organic vapors and gases (e.g., toluene and isobutane, respectively) are used in industry to produce a variety of products (e.g., coatings and packaging materials). During production and use of these products, these vapors/gases are often emitted in dilute concentrations, causing adverse health …
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Capture and recovery of organic gases with electrothermal swing adsorption and post-desorption treatment
… foam packaging manufacturing, use liquefied organic gases (boiling points (Tb) < 20°C) as inert feedstocks. These processes produce low concentration (e.g., 2,000 ppmv) organic gas streams that must be treated to prevent emissions of the organic gases to the atmosphere. The organic gases are …
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Adsorption behavior of volatile organic componds in metal-organic frameworks
… is to explore the applicability of Metal-Organic Frameworks (MOFs) to the adsorption of trace level of volatile organic compounds (VOCs) from the gas phase. The adsorption of VOCs on high surface area materials is an important process for many applications including purification and gas …