Viscosity reduction of crude oils and residuums
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United States of America Patent
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Feb 13, 2001
Grant Date -
N/A
app pub date -
May 24, 1999
filing date -
May 24, 1999
priority date (Note) -
Expired
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Abstract
Adverse effects of asphaltenes in liquid hydrocarbons are reduced by incorporating into the liquid hydrocarbon sufficient concentration, e.g., about 0.5 to 5 weight % of a dispersant to disassemble or break up agglomerates of the asphaltenes. The dispersant has a polarity of about 0.3 to about 3.2 Debye Units and is preferably selected from the group of toluene, o-xylene, m-xylene, tetralin, furan, phenol, ethyl benzoate, butraldehyde, acetophenone and cyclohexanone.
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