The CCR diesel scored 95 points and failed the test
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Reasons for non-conformity, and how to handle them?
A score of 95 is considered unacceptable; this means that the amount is either too low or too high. This can be addressed by increasing the reaction temperature or by increasing the amount of unconverted oil removed
95 points is not passing – is that high or low? You’d better send over the distillation range analysis data; I can help analyze it for you.
Crack diesel? The reaction temperature can be increased to enhance the degree of cracking and the extent of hydrogenation; the dry point of the feed material can also be adjusted, which requires changes on the upstream side. High wax oil cracking temperature is due to reasons such as high extraction temperatures, and it requires adjustment of the distillation system.
Provide the data and find an expert to analyze it*.
Adjust according to the sample! If the boiling range is too narrow, increasing the amount of material taken from the side streams, either by raising the amount drawn from the upper side stream or from the even upper side stream, can help raise the extraction temperature! ! If the boiling range is too wide, reduce the amount of side stream taken off, or fail to close the extraction valve in order to increase the flow rate of cold reflux at the top of the tower! ! If the flash point is lower, increase the steam stripping! !
Furthermore, it only relates to the reaction section; once the temperature reaches the required level, the fact that the diesel is of substandard quality has nothing to do with it. The cause must be sought in the distillation process