Precipitate on candle pipe of natural gas compressor

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Dear Sirs,
Help me please, if you can.
Our client has natural gas compressor and he facing with following problem:
“Oil vapors discharged through the candle line from operating unit, cooled to 120 degrees and the passing through grid of the flame arrester crystallize and prevent discharge of overpressure, that in turn leads to a shutdown of the unit.”

On photo from client one can see white granular precipitate on walls and grid (I cannot to attach this photo). This precipitate much like on wheat cream (semolina).
Client says that this phenomena occurred only on one unit after switching on certain synthetic compressor oil from Agip.
May be you faced with similar phenomena and can to explain this “miracle”.

Thanks in advance,

Mikhail Chistyakov

2/24/158:17 AM

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Original Post

renewaMember

Sorry have not come across this before.
If oil incompatibility is suspected, then perhaps getting oils compatibility testing at both low and high stability temps may provide some information.
Has the composition of the natural gas changed?
Is it possible the crystallized deposits are salts perhaps from water vapours? Is this precipitate water soluble?

3/12/156:55 PM

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