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vapor removal Applications

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    Capabilities of the Adsorbent Tube Injector System (ATIS™)

    The Adsorbent Tube Injector System (ATIS) was developed at Supelco® by R&D Scientists, as a tool to assist in our comprehensive adsorbent research for thermal desorption tubes. The ATIS provides an efficient means of transferring calibration standards in either the gas or liquid phase onto the adsorbent packed tubes. The ATIS employs the technique of flash vaporization to vaporize the sample in a continuous flow of inert gas; the inert gas carries the sample to the tube. The sample pathway of the ATIS is constructed of glass and stainless steel. The calibration standard is injected by a syringe through a replaceable septum in the center of the injection glassware, which is heated. After enough time has elapsed, typically less than five minutes, the tube is removed from the ATIS and analyzed using the appropriate analytical technique for that adsorbent tube.

    By MilliporeSigma based in Bellefonte, PENNSYLVANIA (USA).

  • Activated carbons for air and gas industry

    Carbon Activated Corp. supplies carbon and related services to various vapor phase applications such as odor control in municipal waste-water facilities, landfills and refineries, SVE (soil vapor extraction) projects and many other vapor related applications. We manufacture specialized carbon both impregnated and non-impregnated for applications such as H2S removal and the removal of any time of noxious gases.

    By Carbon Activated Corporation based in Compton, CALIFORNIA (USA).

  • Solutions for the small tank cleaning and degassing

    BioSolve Pinkwater is a proven tool used in the process of removing and repairing fuel storage tanks of all sizes.  Pinkwater is best known for its unmatched performance suppressing volatile organic vapors that are present when working with fuel tanks (both AST and UST). The product can also be used to assist in loosening and removing tank bottom sludge.  Major US and foreign oil companies as well as small tank removal teams find working with Pinkwater to be safe, simple, effective and worker friendly as compared to alternative approaches to tank cleaning and degassing.

    By The BioSolve Company based in Lexington, MASSACHUSETTS (USA).

  • Gas detection analyzers for processing ovens & dryers

    Many industries are involved in coating products with solvent-borne materials and then employing ovens or dryers to remove the solvents from the finished product. The key hazard is an explosion from the build up of solvent vapors in the oven or dryer atmosphere. This buildup could occur by a malfunction in the production process such as: a sudden or improper amount of coating, a change in ventilation controls or excessive speed. In any of these cases, the concentration of flammable vapor has an opportunity to rise above safe levels, creating a potentially explosive mixture of vapor in air.

    By Control Instruments Corporation based in Fairfield, NEW JERSEY (USA).

  • Automotive Shredder Residue Drying

    Getting economic value from landfill waste like automotive shredder residue (ASR) is a big challenge that can have a big payoff. Vulcan® Systems Drying Technology is the key component of material preparation when separating ASR waste to reclaim energy and metals. Vulcan® ASR Dryer Systems are manufactured to suit each client’s individual project needs and custom-designed specifically to dry ASR, making the material easy to transport, separate, and handle. This drying system consists of a drum with a burner that is mounted to a combustion chamber. Shredder residue is fed into the rotary dryer. After passing through the system, the dried material is discharged to a transfer conveyor for further sorting and separation. The vapor from the process is pulled through a cyclone that is specifically designed to deal with the fine ASR dust, as well as a high-temperature baghouse that removes additional fine particulates from the vapor stream.

    By Vulcan Systems based in Moberly, MISSOURI (USA).

  • Odor Scrubbers Applications with Hydrogen Peroxide

    Hydrogen Peroxide as a Replacement for Sodium Hypochlorite Hydrogen peroxide may be used in both mist scrubbers and packed tower scrubbers as a replacement for sodium hypochlorite (bleach). Like bleach, the process involves two concurrent mechanisms: 1) absorption of the odors (H2S) into the alkaline scrubbing solution; and 2) oxidation of the absorbed sulfide in solution. Step 1: H2S + NaOH → NaSH + H2O Step 2: 4H2O2 + H2S → H2SO4 + 4H2O Typical dose ratios are 5 parts H2O2 per part H2S or, when used in place of bleach, one gallon 50% H2O2 for every 10 gallons of 15% sodium hypochlorite (NaOCl). This generally translates into a break-even cost scenario. Sufficient caustic soda (NaOH) is added to maintain a pH of 10.0 - 10.5 in the scrubbing solution. There is also in practice a process which uses H2O2 in series with bleach to scrub composting odors. This process relies on a series of three packed tower scrubbers: the first is a pH neutral water wash (to remove ammonia and amine odors); the second uses a conventional caustic/bleach solution in which the bleach is purposely overdosed (to oxidize the complex organic sulfur odors); and the third uses a caustic/H2O2 solution (to remove the unreacted chlorine vapors carried over from the second stage). H2O2 + HOCl → HCl + H2O + O2 Typical dose ratios are 0.5 parts H2O2 per part hypochlorite (OCl-), with sufficient caustic soda (NaOH) added to maintain a pH of 8.5 in the scrubbing solution.

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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