Discussion on the temperature of reduced-pressure residue
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1. As early as in books on petroleum refining, there was a specification regarding the temperature of vacuum residue; anything with a temperature above 500 degrees was considered vacuum residue. 2. However, in the past, the methods used for processing vacuum wax oil were too limited; now, with the diversification of processing techniques for vacuum wax oil, the temperature of vacuum residue is also increasing, to values such as 520, 540, and 565. 3. What temperature do you think vacuum residue is processed at these days? And how is both vacuum wax oil and vacuum residue processed? 4. Since I have been reading literature recently, it only mentions vacuum residue without specifying its temperature, which has left me a bit puzzled.
Current advanced pressure reduction units can extract components below 565 degrees for catalytic or cracking treatment, as well as for desulfurization, de-coking, or residue hydrogenation.