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This post was last edited by Green Lotus on 2017-9-6 at 16:48. Samples of the oil slurry discharged from the catalytic fractionation system were taken; after cleaning with stabilized gasoline and filtering out the liquid, a viscous black substance was obtained. This substance was cleaned several more times with stabilized gasoline and the liquid was filtered out again, resulting in a black residue. I would like to ask the experts for their advice
The undissolved portion of stabilized gasoline should correspond to the C7 insolubles; it is likely to be the asphaltic components.
Is this the ash left after combustion?
Dissolution washing to determine the solid content in the slurry
Ash refers to the substance that remains after the oil slurry has been burned! They use gasoline to dissolve and filter the substance – how can there be any talk of burning it? The excessive solid content is mostly caused by the catalyst carried over from the reaction phase; therefore, the catalyst should be the main focus!
It should be resins and asphalts; if they are viscous substances
There are catalyst powder and asphaltenes in the oil slurry. We did the same thing. When the slurry density is greater than 1071, sometimes the solid content in the slurry exceeds the specified limit; in fact, it is the asphaltenes present that are responsible for this, and it’s not necessarily the running agent.
There are catalyst powder and asphaltenes in the oil slurry. We did the same thing. When the slurry density is greater than 1071, sometimes the solid content in the slurry exceeds the specified limit; in fact, it is the asphaltenes present that are responsible for this, and it’s not necessarily the running agent.