Differences in residue oil
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What is the main difference between atmospheric residue and vacuum residue? Under constant coking operation conditions (temperature, pressure, recycle ratio), the coke produced from atmospheric residue and vacuum residue is such that the coke derived from the former type of feedstock is harder
Atmospheric residue: generally the fraction at 360-520°C； Vacuum residue: generally refers to components with temperatures above 520°C; under fixed coking conditions (temperature, pressure, recycle ratio), processing vacuum residue to produce coke results in coke of higher hardness