Indications/Effects of Corrosion:
Salt deposition in reactor preheat exchangers and sometimes observed fouling in the exchangers.
Reactor’s fouling which shows the high differential pressure.
Reactor effluent final exchanges fouling due to NH3-CL.
Stripper feed preheat exchangers corrosion
Corrosion in the upper part of stripper/fractionator.
Valves failure in a recycle gas reciprocating compressor or capacity loss of centrifugal compressor, in case the source is makeup gas.
Salts/chlorides from crude oil transferred to Hydrotreating unit with feed.
Makeup gas from reforming unit