Deasphalting tar using stripping tower
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United States of America Patent
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Nov 15, 2011
Grant Date -
Oct 1, 2009
app pub date -
Jun 10, 2009
filing date -
Oct 30, 2006
priority date (Note) -
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Abstract
Tar is contacted with stripping agent, such as steam or tail gas, in a stripping tower. A product comprising deasphalted tar is recovered as overheads and a product comprising heavy tar is recovered as bottoms from the stripping tower.
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