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Dissolved gases such as oxygen and carbon dioxide must be reduced in Boiler Feed Water in order to prevent boilers and steam circuits from corrosion. The thermo-physical deaeration process is by far the most applied technology when a reduction of oxygen to only a few parts per billion is required. While part of the BONO Group, ARTES Ingegneria is in the business of Deaerators since 1958.
The degassing process is achieved in the deaerating tower where make-up water is atomised on a set of special packing that increases the contact surface between water and steam. Oxygen and carbon dioxide are stripped by the steam flow and vented through a calibrated orifice. Deaerated water is collected in the storage tank so as to assure an adequate “Hold-up” time for the boiler downstream.
According to the design capacity and steam flow, the deaerating tower may be arranged on a vertical or horizontal geometry so that, in the latter case, a larger surface of mass and heat transfer is implemented.
Deaerators are manufactured and marketed on BONO Artes’ own proprietary design in order to assure the complete responsibility of the concerned unit.
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The process is based on the patented and well-proven MinoxTM process. The process has been in use for offshore applications since 1991 and has now been introduced to the conventional industry with low capacity units.
The MinoxTM process gives small, compact and economical systems, also for this application. The most common industrial application for the conventional industry is Deoxygenation of water in cooling circuits, district heat plants etc.
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The Deoxygenation system for injection water, can be delivered in two different versions; Minox DeOx System - 2 Stages, or Minox Deox System - Compact Tower.
The MinoxTM DeOx System - 2 stages :
This is the ultimate Deoxygenation system configuration available in the market today. It gives extremely small and light units and requires a minimum of maintenance and utilities.
The MinoxTM Deox System - Compact Tower:
By utilizing the MinoxTM process in conjunction with a tower and packing, the same technical features as the 2-stage system are achieved. It will however require more space and support than the 2-stage system, but still significant less than a conventional system. This means that overall, for most new installations, the 2-stage system will be more cost effective.
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OMVE DEA range deaerator systems optimize conditions by removing air and gasses, using controlled vacuums and temperatures instead of chemical stripping gases.
The OMVE DEA210 and DE2320 deaerator remove gasses from a broad range of products and were specifically designed for laboratory applications to simulate industrial deaeration processes and gain similar results on R&D or Pilot scale.
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