Mineral oils: processes and products – Chemical conversion of hydrocarbons – With prevention or removal of deleterious carbon...
Reexamination Certificate
2008-07-17
2011-11-22
Griffin, Walter (Department: 1774)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With prevention or removal of deleterious carbon...
C208S047000, C208S04800Q
Reexamination Certificate
active
08062504
ABSTRACT:
A method of reducing asphaltene and particulate induced fouling during the thermal processing of petroleum oils utilizes resin extracts from HSDP crude oils to disperse and solubilize asphaltenes and disperse inorganic particulate contaminants such as salts and iron oxide. The extracts are essentially maltene fractions which may be separated from the HSDP crude by a process of extraction from a precipitated asphalt fraction using light paraffinic solvents such as n-heptane.
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Brons Glen B.
Wright Chris A
Barrett Glenn T.
ExxonMobil Research & Engineering Company
Griffin Walter
McCaig Brian
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