Air Purification in the Chemical and Pharmaceutical 														Industries

Air Purification in the Chemical and Pharmaceutical Industries

Odour removal using UV-C/ozone-based technology

When manufacturing and processing organic raw materials, intermediate products, or even special chemicals, the chemicals undergo transformations. Due to the technical processes, intensely odorous gases and exhaust containing partially poisonous, corrosive chemicals are produced.

  • In the plastic and rubber industries, this concerns rubber processing plants, e.g., for tires and molded rubber parts. During vulcanization, there is a chemical reaction to create crosslinks between the rubber molecules in a solution; bonding agents are also added with a solvent to permanently join rubber to steel. The solvents used are either free of aromatics (MIBK, MEK, isopropanol, hexanes, etc.) or contain aromatics (BTEX: benzene, ethylbenzene, toluene, xylene).
  • When processing bitumen and tar, exhaust is created that contains both BTEX chemicals, as well as polyaromatic hydrocarbons (PAH).
  • When manufacturing sealing materials, e.g., silicone, odorless chemicals used for crosslinking molecules, such as acetic acid, are released in addition to organic solvents and silanes.
  • In the pharmaceutical industry, endocrine disruptors such as antibiotics and cytostatics are released during production and processing. Such emissions should be avoided as much as possible, even in very low concentrations.
  • In the petroleum industry, tank depots must be regularly ventilated during inspection and cleaning work. It is typical to have an enormously high initial concentration during this process. When cleaning chemical containers and tankers, a complete spectrum of VOCs can be encountered.

UV-C ozone technology is a system specially designed for purifying strongly smelling, organically contaminated exhaust air 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 final cleansing occurs.

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