The solvent used in distillation methods for determining the water content in crude oil – is there a significant difference between solvent oil and 92# gasoline? Why is there this difference?
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Have you all encountered the situation where there is always a difference in water content before and after crude oil pipeline transportation once things stabilize? The testing procedures at both ends are the same; it’s just that the solvents used for distillation differ—one is solvent oil, and the other is ordinary 92 octane gasoline It seems to me that this is the reason, but I’m not entirely sure and don’t quite understand the principle behind it. Can someone explain it to me?
It feels the same; it’s specified to use 200#, but I’ve used aviation fuel before, and I think the key thing is that the solvent should not contain any water – that way the result will be similar
GB/T 8929 \"Determination of water content in crude oil – Distillation method\" specifies xylene as the reference solvent, and poor sampling and sample handling can have a significant impact on the analysis results