High Quality Asphalt Containing Pitch and Method of Preparing the Same
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United States of America Patent
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Issued Date -
Sep 4, 2008
app pub date -
Jul 19, 2006
filing date -
Jul 20, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A high quality asphalt containing pitch is generated as a by-product in a solvent deasphalting process and a method of preparing the same. The pitch is obtained by subjecting a mixture comprising a first vacuum residue and a first petroleum distillate, which is lighter than the vacuum residue and has high amounts of aromatic and resin, to solvent deasphalting. The operation conditions of the solvent deasphalting process are appropriately controlled, such that aromatic and resin components contained in the atmospheric residue and vacuum residue can be distributed to the pitch, and as well, a saturate can be removed.
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