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- Oxygenated_treatment abstract "Oxygenated treatment (OT) is a technique used to reduce corrosion in a boiler and its associated feedwater system in flow-through boilers.Traditionally, corrosion was prevented by keeping the oxygen in the system below 10 ppb by using a deaerator and injecting an oxygen scavenger. This process is called All-volatile treatment (AVT) in reference to the volatile alkalizing agents added to the feedwater. Ammonia (NH3) is added to keep the feedwater pH high, thus reducing the risk of FAC. In AVT(R), a reducing agent is added. AVT(R) causes the formation of a protective layer of magnetite (Fe3O4), which is a combination of FeO and Fe2O3. In AVT(O), no reducing agent is added and residual oxygen is present. AVT(O) allows a layer of hematite to form on top of the magnetite, similar to oxygenated treatment.With oxygenated treatment, oxygen is injected into the feedwater to keep the oxygen level between 30-50 ppb. "Common injection points are just after the condensate polisher and again at the deaerator outlet." This forms a thicker protective layer of hematite (Fe2O3) on top of the magnetite. This is a denser, flatter film (vs. the undulation scale with OT) so that there is less resistance to water flow compared to AVT. Also, OT reduces the risk of flow-accelerated corrosion.When OT is used, conductivity after cation exchange (CACE) at the economiser inlet must be maintained below 0.15μS/cm this can be achieved by the use of a condensate polisher.".
- Oxygenated_treatment wikiPageID "41864024".
- Oxygenated_treatment wikiPageLength "5207".
- Oxygenated_treatment wikiPageOutDegree "8".
- Oxygenated_treatment wikiPageRevisionID "647840618".
- Oxygenated_treatment wikiPageWikiLink All_volatile_treatment.
- Oxygenated_treatment wikiPageWikiLink Boiler.
- Oxygenated_treatment wikiPageWikiLink Category:Water_treatment.
- Oxygenated_treatment wikiPageWikiLink Deaerator.
- Oxygenated_treatment wikiPageWikiLink Flow-accelerated_corrosion.
- Oxygenated_treatment wikiPageWikiLink Heat_recovery_steam_generator.
- Oxygenated_treatment wikiPageWikiLink Oxygen_scavenger.
- Oxygenated_treatment wikiPageWikiLinkText "Oxygenated treatment".
- Oxygenated_treatment hasPhotoCollection Oxygenated_treatment.
- Oxygenated_treatment wikiPageUsesTemplate Template:Reflist.
- Oxygenated_treatment subject Category:Water_treatment.
- Oxygenated_treatment hypernym Technique.
- Oxygenated_treatment type Software.
- Oxygenated_treatment comment "Oxygenated treatment (OT) is a technique used to reduce corrosion in a boiler and its associated feedwater system in flow-through boilers.Traditionally, corrosion was prevented by keeping the oxygen in the system below 10 ppb by using a deaerator and injecting an oxygen scavenger. This process is called All-volatile treatment (AVT) in reference to the volatile alkalizing agents added to the feedwater. Ammonia (NH3) is added to keep the feedwater pH high, thus reducing the risk of FAC.".
- Oxygenated_treatment label "Oxygenated treatment".
- Oxygenated_treatment sameAs m.0_lfj_g.
- Oxygenated_treatment sameAs Q17073707.
- Oxygenated_treatment sameAs Q17073707.
- Oxygenated_treatment wasDerivedFrom Oxygenated_treatment?oldid=647840618.
- Oxygenated_treatment isPrimaryTopicOf Oxygenated_treatment.