Oxygen Scavengers

If left untreated, boiler water derived oxygen will corrode metallic boiler components leading to increased maintenance costs and reduced boiler efficiency.

Boiler Oxygen Scavengers

Boiler corrosion control; Oxygen-related metallic corrosion is a significant issue in the operation and maintenance of industrial boiler systems and steam raising plant.
To ensure that such boiler systems are well maintained and operate at optimum efficiency it is essential that the correct water conditions are maintained at all times. This can be achieved using carefully selected oxygen scavengers designed specifically for steam boiler corrosion control and feed water corrosion control in steam raising plants.

If you are a water treatment specialist, FM or maintenance company who regularly resells water treatment products to your customers why not apply to become an Accepta Registered Reseller.

Accepta’s technically advanced boiler water oxygen scavengers are scientifically formulated to combat the detrimental effects of oxygen-related corrosion in industrial boiler systems, hot water systems, and steam raising plant and so help reduce maintenance costs, maintain boiler efficiency and extend plant and equipment life. These include Tannin, Sulphite, Carbohydrazide & DEHA chemical blends.

Popular Boiler Water Oxygen Scavengers

Codes
O2 Oxygen Scavenger
FDA Approval
Description

Sulphite

Yes

FDA Approved

Neutralised catalysed sulphite liquid for easy use in low and medium pressure Boilers

Sulphite

Yes

FDA Approved

Partially neutralised sulphite based inhibitor for low & medium pressure Boilers

Sulphite

Yes

FDA Approved

Catalysed bisulphite liquid. High strength, for use in low and medium pressure Boilers

Carbohydrazide

Carbohydrazide based liquid for use on deaerated feedwater. Suitable Hydrazine replacement. Ideal “zero solids” treatment for High Pressure Boilers

Tannin

Tannin based liquid oxygen scavenger. It both scavenges the oxygen & forms a corrosion resistant film. Ideal for low pressure and steam heritage applications

DEHA

DEHA based liquid. “Zero solids” and steam volatile. Ideal for Medium and High Pressure Boilers and will provide condensate system protection also

Steam Boiler Corrosion Control

Preventing Boiler Corrosion is done through the removal of oxygen and maintaining appropriate alkalinity levels in the boiler water to prevent acid attack.

As shown in the chart oxygen levels are tied to the Hotwell feed water temperature with nearly all oxygen gone by the time the water reaches 100oC. For this reason, we recommend keeping the temperature above 80oC and incorporating an Oxygen Scavenger such as Accepta’s high-quality Sulphite or Tannin blends featured above. This will help maintain excellent boiler corrosion control and limit the potential for oxidation.

The other risk in an industrial boiler is acid attack which is caused by insufficient levels of alkalinity. Alkalinity naturally builds in a boiler as cycles of concentration increase and in many cases, a bespoke treatment plan will include additional alkalinity builders with a maximum recommended limit of 1200ppm (M Alkalinity) in a Shell boiler running at TDS of 3000ppm. Accepta Alkalinity Builders are available as separate chemicals or as part of our Multi-functional Boiler Treatment detailed below.

Multifunctional Products

You may also want to look at our range of Multi-functional Products which combine the oxygen scavenger with a polymer sludge conditioner & alkalinity builder to create a single easy to use liquid to simplify dosing and control.

Click here to see the range …

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