Can the density change during the catalytic diesel loading process?
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I have a question for all of you experts: When accelerating the loading of diesel onto the ship, the density as measured by the pipeline densitometer is 954 kg/m3, but when measured in the ship’s cargo holds, it drops to 949 kg/m3. The densities of two of the cargo holds are both around 940 kg/m3, while the densities of the other holds are fairly similar. The properties of catalytic diesel are not clear, but it is said to be unstable. I would like to ask if precipitation may be occurring, which could lead to a decrease in density?
This is a mass flow meter, and there will definitely be some deviation, as the flow rate decreases when the pipe length increases. The density of diesel will not change; only its color will change. The precipitate is a gum-like substance, resulting from the failure to remove impurities such as sulfur properly during production.
Then, if precipitation occurs, does the density of the liquid phase not change either?
There should be a limit to the inaccuracy in density measurement by a mass flow meter; a difference of 10% between 950 and 940 is quite significant. Unless the flow meter is damaged, such a large discrepancy shouldn’t occur. . . .
Unchanged. After all, the precipitate is much less than the liquid. The color may darken or turn black.