Cannon Bono Energia S.p.A. - part of the Cannon Group

- Deaerators

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Water when in equilibrium with the atmosphere contain significant levels of gases, mainly carbon dioxide and oxygen. In several industrial applications the concentration of oxygen and carbon dioxide must be reduced to negligible levels either for process purposes or to prevent boilers and pipelines from severe corrosion.The thermo-physical deaeration process is by far the most applied technology in the Boiler Feedwater Degassing when a reduction of oxygen to only a few parts per billion is required. Dissolved gases are removed by steam stripping, and the steam is moreover employed as heating medium because of the reduced solubility of gases at higher temperature.On the other hand Vacuum deaerators are employed when heating of water is not necessary and when steam is not available as a stripping medium. Typical applications are degassing of Injection Water in the upstream sector and in the degassing of make-up water in district heating.

  • An extremely efficient Mass-Transfer rate leads to reduction of dissolved gases (oxygen, carbon dioxide, volatile compounds) in water  to meet the most stringent specifications
  • Efficient heating of the BFW to the required boiler temperature with a dramatic saving of the required steam.
  • A very compact deaerating tower is obtained thanks to the efficient packing with a high “active area / installed volume” ratio.
  • High reliability and low maintenance due to the implementation of 50 years of design and manufacturing experience in deaeration technology.

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