Oxygen treatment improves water quality in supercritical power plants by reducing flow-assisted corrosion and impurities that cause turbine blade deposits. It works by dosing oxygen gas at the deaerator and condensate polishing unit outlet to produce stable iron oxide layers that minimize corrosion. The advantages of oxygen treatment include virtually no iron transport, reduced flow-assisted corrosion, less frequent regeneration of condensate polishers, and a broad effective pH range.

1. SANTOSH PARDHI
Deputy Manager
1
Adani Power Maharashtra ltd

2. OXYGEN TREATMENT FOR SUPER CRITICAL POWER PLANTS
Supercritical boilers do not have a steam drum. Therefore, extremely high levels of
purity is required for feed water
Poor feed water can result into carry over of impurities which will result in turbine
blade deposits
Oxygen Treatment improves the quality of water by reducing the flow assisted
corrosion.
OXYGENATED TREATMENT
Oxygen treatment minimizes flow assisted corrosion by the production of more stable
iron oxide Hematite layers.
Oxygen gas is dosed at deaerator and Condensate polishing unit outlet through gas
cylinders in a controlled manner.
ADVANTAGES OF OXYGEN TREATMENT
Virtually no iron transport
Virtually no flow assisted corrosion.
Reduced Condensate Polisher regeneration.
Broad pH application range
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3. Another 30
Years
R&M
THERMAL
POWER
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