Dears,
'm writing to ask about the suitable metallurgy of steam condensate system.
I've done a lot of searches and most of the articles give the two options of carbon steel & stainless steel (with the difference in the corrosion mitigation measures). Also, they inform that the corrosion is predominant by oxygen & carbon dioxide presence (CO2 can form via the decomposition of traces carbonates & bicarbonate).
Until now, it is not clear to me how to judge which option and/or combination to choose.
To give little brief about our system:
Boiler pressure & temperature: 42 barg & 400 deg. C
Water make-up: demineralized potable water
Recovered condensate: ~95% with only de-oiling (no mixed bed polishing)
Steam is serving turbine drivers & heat exchangers
Appreciate sharing any experience and/or articles which can help...
Regards,