food grade product line by Water Services Ltd

WSB SLA

WSB SLA is a group of neutralizing  products, based on Morpholine as the main neutralizing amine compound.

In any steam-condensate mixture, the ratio of neutralizer in the condensate to that in the steam is inversely proportional to the distribution ratio. Morpholine, therefore, has the greatest potential to condense in the first condensate formed, at which time it will neutralize any carbon dioxide dissolved in this same first condensate. It can, therefore, offer the greatest protection in relatively small systems, or in areas within a system where steam first condenses.

Combining amines of differing distribution ratios provides an effective method of control

Because neutralizing inhibitors return to the boiler with the condensate, they can be recycled. This is an important consideration in their use because the only loss is through non-returned condensate, steam released to the atmosphere or consumed in plant processes, or through slight venting losses in the deaerating equipment. 

In the deaerating equipment, the stripping action of steam decomposes the amine-carbonate and removes most of the carbon dioxide. Only a small portion of the amine is removed through the vent of the deaerator. The amount varies with the distribution ratio . Amines with the lowest distribution ratio, like WSB SLA 3110 and WSB SLA 3115 suffer the lowest loss in the deaerator. 

The remaining amine returns to the boiler in the feed water, enters the steam, and continues the cycle.