Oxidizing gas scrubbing

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Gas scrubbing processes are referred to as oxidizing gas scrubbing or oxidizing scrubbing , in which the chemical composition of the exhaust gas components to be removed is changed by the addition of oxidizing agents .

Procedure

With oxidizing gas scrubbing, the exhaust gas to be treated is passed through a gas scrubber (e.g. spray scrubber or Venturi scrubber ). There the components to be separated are absorbed . The oxidizing agent, which can be solid (e.g. potassium permanganate ), liquid (e.g. hydrogen peroxide ) or gaseous (e.g. ozone ), ensures that the driving concentration gradient between gas and liquid phase is sufficiently large. The resulting oxidation products can either be separated by additional exhaust gas cleaning devices or, due to their harmlessness, released into the atmosphere.

Oxidizing gas scrubbing is mainly used for inert organic substances. In contrast to the only physically effective absorption, the oxidizing gas scrubbing is irreversible. It should be noted that some oxidizing agents present a potential hazard in the event of a malfunction.

literature

Individual evidence

  1. ↑ Wet separator - exhaust gas cleaning by oxidizing gas scrubbing - VDI 3679 sheet 4. In: vdi.de. Retrieved January 8, 2016 .
  2. ↑ a b VDI 3679 sheet 4: 2014-10 wet separator; Waste gas cleaning by oxidative gas scrubbing (wet separators) . Beuth Verlag, Berlin. P. 6.
  3. ^ Franz Joseph Dreyhaupt (editor): VDI-Lexikon Umwelttechnik. VDI-Verlag Düsseldorf, 1994, ISBN 3-18-400891-6 , p. 889.
  4. ^ Günter Baumbach: Air pollution control . Springer-Verlag, Berlin, Heidelberg, New York, 2nd edition 1992, ISBN 3-540-55078-X , p. 385.
  5. ↑ Heinz M. Hiersig : Lexikon production engineering, process engineering. VDI-Verlag, Düsseldorf, 1995, ISBN 3-18-401373-1 , p. 2.