Purification of Exhaust Containing Solvents

Purification of Exhaust Containing Solvents

It is still necessary to use solvents to maintain quality when manufacturing and processing paint, ink, and coating materials. These are released into the exhaust and have toxic effects. It is also necessary to permanently guarantee limit values of 20, 50 or 100 mg C/m3 in the exhaust air, depending on definitions and relevance.

The following are frequent organic pollutants in exhaust:

  • Organic solvents (MEK, MIBK, isopropanol, hexanes, BTEX, organochlorides, etc.)
  • Mineral oil derivatives (alkanes, alkenes, alkynes, alcohols, ketones, aldehydes, carboxylic acid, etc.)
  • Benzene derivatives – benzene, toluene, ethyl benzene, xylene, cumene (BTEX)
  • Polyaromatic hydrocarbons (PAH), phenols
  • Tar products (pyridine)
  • Nitrated hydrocarbons
  • Silanes, siloxanes
  • Organochlorides (vinyl chlorides, cis-1,3 dichloroethylene, tri-, per-, etc.), chlorobenzene
  • Fluorinated hydrocarbons
  • Endocrine substances (antibiotics, cytostatics, etc.)
  • TOC (total organic carbon)

UV-C ozone technology is a system that has been specially designed to purify heavily smelling, organically contaminated exhaust from processes that use solvents.

The process in 3 steps:

  1. The UV chamber: here, compounds with long chains are broken down by a lamp with class “C” UV radiation, and ozone is created by the UV radiation.
  2. The reaction path: oxidation occurs as the reaction of ozone with the broken-down compounds.
  3. The catalyst stage: the reaction time is extended and the final cleansing occurs.

This process can be expanded as desired using modules and retrofitted for increased volumes and concentration levels.

    Applications:

    • Manufacturing paints and dyes
    • Painting
    • Surface finishing
    • Coating processes and material impregnation
    • Processing polymers in laser systems (laser fumes)

    Advantages:

    • Effectively destroys organic and odor-carrying particles
    • Not sensitive to load fluctuations
    • Not sensitive to high air humidity
    • Exhaust containing VOCs
    • Exhaust containing styrene

    Please ask us your questions:

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