Upgrading deasphalting residue to high performance asphalt
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United States of America Patent
Stats
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Mar 31, 2015
Grant Date -
Jun 6, 2013
app pub date -
Dec 2, 2011
filing date -
Dec 2, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A novel composition is provided that incorporates the residual solids from solvent deasphalting to make a high value asphalt product. A process for making the asphalt composition is also provided. A first portion of heavy oil or another feedstock can be deasphalted using propane deasphalting or another suitable deasphalting process. This generates a solvated fraction and an insoluble deasphalting residue. The deasphalting residue is then added to a second portion of heavy oil, such as a second portion of the same type of heavy oil that was used as feedstock in the solvent deasphalting. The mixture of deasphalting residue and heavy oil results in a novel dispersion that is suitable for use as an asphalt. Optionally, an additive such as an alkyl substituted aromatic sulfonic acid can be added to the composition to further improve the asphalt properties.
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International Classification(s)
- 2011 Application Filing Year
- C10M Class
- 264 Applications Filed
- 213 Patents Issued To-Date
- 80.69 % Issued To-Date
Cited Art Landscape
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- 0 Citation Count
- C10M Class
- 0 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 30, 2026 |
