Exhaust cleaning operation due GEA Quench Tower

GEA Quench Tower

Exhaust cleaning operation due GEA Quench Tower



  • Brick lined casing with special bricks at dry-wet zone interface
  • Additional carbon bricks in case of high fluorine content
  • Open cross section design -> no risk of clogging. 
  • Long gas retention time -> separation of fine dust (As2O3, PbSO4, SE, SeO2)
  • Stand-by pump and ring main with nozzles
  • Emergency water system

Why Quenching?

Quenching is choosing in contrast to heat exchanger because:

  1. If an exchanger is used large area is required
  2. Also, direct contact is more efficient than indirect contact
  3. The fine particles from the reactor will also be removed which may otherwise erode exchanger tubes

Quenching is different from cooling in the sense that:

  1. Cooling is done in a comparatively longer time
  2. It also does not stop the side reactions completely
  3. While in quencher formation of by-products are completely stopped

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