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US 9,163,124 B2Granted
System and methods for slurry hydroconversion pitch disposition as solid pellets and composition of the same
AssigneeExxonMobil Research and Engineering Company
InventorsWilliam Ernest Lewis, Randolph John Smiley, Patrick Loring Hanks
Life of this patent
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Abstract
A system and method for producing solid pellets from a slurry HDC pitch is disclosed which utilizes a polymer additive that is mixed with the pitch to increase the softening point of the solid pellets.
Claims20
A method of producing solid pellets from a hydroconversion pitch produced from a hydroconversion process, the method comprising:
- providing a stream of hydroconversion pitch;
- providing a stream of polymer additive, the polymer additive comprising a polymer having a molecular weight greater than 100,000;
- mixing the stream of hydroconversion pitch with the stream of polymer additive to produce a mixture of hydroconversion pitch and polymer additive;
- and
- pelletizing the mixture of hydroconversion pitch and polymer additive to produce pellets having a softening point of at least 65° C. (150° F.).
2 more elements
A system for producing solid pellets from a hydroconversion pitch produced from a hydroconversion process, the system comprising:
- a source of hydroconversion pitch;
- a source of polymer additive, the polymer additive comprising a polymer having a molecular weight greater than 100,000;
- a mixing assembly for mixing the hydroconversion pitch with the polymer additive to produce a mixture of hydroconversion pitch and polymer additive;
- and
- pelletizing assembly for processing the mixture of hydroconversion pitch and polymer additive to produce pellets having a softening point of at least 65° C. (150° F.).
2 more elements
A solid hydroconversion pitch pellet comprising:
- a mixture of a hydroconversion pitch and a polymer additive, the polymer additive comprising a polymer having a molecular weight greater than 100,000, wherein the polymer additive is less than 10 wt % of the total mixture, the pellet having a softening point of at least 65° C. (150° F.).
Dependencies are inferred from the claim text.