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AssigneeExxonMobil Research and Engineering Company
InventorsPatrick L. Hanks, Anjaneya S. Kovvali, David T. Ferrughelli, Steven Pyl, Sumathy Raman
Estimating the term…
Systems and methods are provided for solvent deasphalting of steam cracker tar. The resulting deasphalted oil produced from the steam cracker tar can then be hydroprocessed, such as hydrotreated and/or hydrocracked in a fixed bed reactor. The solvent deasphalting can correspond to a mild or trim deasphalting or can correspond to solvent deasphalting at higher solvent to oil ratios. Performing a trim deasphalting can reduce or minimize the amount of deasphalting residue that is formed as a product from the deasphalting process.
A method for processing a feedstock, comprising:
A system for processing a feedstock, comprising:
A deasphalted oil composition having a hydrogen content of about 7.5 wt % or less, the deasphalted oil comprising less than about 1.0 wt % paraffins, less than about 1.0 wt % naphthenes, at least about 40.0 wt % 3-ring aromatics, at least about 40 wt % 4-ring aromatics, an asphaltene content of about 5.0 wt % or less, and a micro carbon residue of about 5.0 wt % to about 20.0 wt %.
A deasphalter rock composition having a hydrogen content of about 6.0 wt % or less, a carbon content of at least about 88.0 wt %, a micro carbon residue of at least about 46.0 wt %, and a viscosity at 170° C. of at least about 5×106 cP (˜5000 Pascal seconds), the deasphalter rock composition being a solid at 100° C.
Dependencies are inferred from the claim text.