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Propylene glycol PHX fouling

Thread starter CCLNZ
Start date Dec 29, 2003

Status: Not open for further replies.

Dec 29, 2003

CCLNZ

Chemical

Anyone with some advice about preventing a rust coloured film forming on the glycol (30%w/w in water) side of an ammonia/glycol refrigeration evaporator plate HX. The film is hot water soluble, but has the appearance of an oily film. The glycol has some sort of proprietory corrosion inhibiter but this seems inadequate. Glycol temp, -6 to -8 deg C.