CR Clean Air Group, LLC

7 products found

CR Clean Air Group, LLC Products

  • Pollutants

  • Acidic Gases

    Acidic Gases

    Bromine and Fluorine: Bromine (Br2) and Fluorine (F2) are typically scrubbed in a counter current packed tower to achieve maximum efficiencies using a dilute aqueous alkali solution. For applications with very high concentrations of these gases it may be useful to use a Jet Venturi Fume Scrubber as a first stage to remove the bulk of the contaminant then “polish” with a packed tower scrubber. With respect to F2, the...

  • Ammonia/Amines

    Ammonia/Amines

    Ammonia (NH3) is readily scrubbed using Jet Venturi, Packed Towers, or Multi-channel Bed Scrubbers. Although ammonia is infinitely soluble in water, recirculating an aqueous NH3 solution cannot generally be used for scrubbing. Aqueous NH3 solutions are characterized by relatively high NH3 vapor pressures that prevent the mass transfer of NH3 from gas to liquid phase. Commonly NH3 is scrubbed with an aqueous acid solution. Sulfuric acid or...

  • Ethylene Oxide

    Ethylene Oxide

    Ethylene Oxide (EO or EtO) and Propylene Oxide (PO) are utilized as sterilants for medical products and food products as well as in the manufacture of chemical products such as surfactants. Although both compounds are readily soluble in water and, in fact, hydrolyze to form ethylene and propylene glycol the removal of these compounds is not a simple matter.

  • Mercury

    Mercury

    Mercury in flue gas exists as gas-phase elemental mercury (HgO) and oxidized or ionic form of mercury, such as mercuric chloride, HgCl2 (HgII+) or mercuric oxide (HgO). Speciation (oxidation state) of the mercury influences the effectiveness of various control technologies and whether the mercury is deposited locally or transported over long distances. Emissions of elemental mercury, for example, can remain in the atmosphere for about a year and be...

  • Particulate Matter

    Particulate Matter

    Includes dust, dirt, soot, smoke and liquid droplets directly emitted into the air by sources such as factories, power plants, cars, construction activity, fires and natural windblown dust. Particles formed in the atmosphere by condensation or the transformation of emitted gases such as SO2 and VOCs are also considered particulate matter. PM is usually divided up into different classes based on size, ranging from total suspended matter (TSP) to PM-10...

  • Propylene Oxide

    Propylene Oxide

    Ethylene Oxide (EO) and Propylene Oxide (PO) are utilized as sterilants for medical products and food products as well as in the manufacture of chemical products such as surfactants. Although both compounds are readily soluble in water and, in fact, hydrolyze to form ethylene and propylene glycol the removal of these compounds is not a simple matter.

  • Sulfides/Mercaptans

    Sulfides/Mercaptans

    H2S: Hydrogen Sulfide is most often found in the off-gases from Waste Water Treatment plants and certain Pulp and Paper processes (here along with other TRS-total reduced sulfur- compounds), Hydrogen Sulfide reacts readily with aqueous NaOH but often aqueous NaOH alone is not the preferred choice for scrubbing.