Mineral oils: processes and products – Chemical conversion of hydrocarbons – With subsequent treatment of products
Patent
1983-03-23
1984-06-12
Gantz, Delbert E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With subsequent treatment of products
208 48R, 208106, 208309, C10G 6704, C10G 2100
Patent
active
044540230
ABSTRACT:
A process for upgrading a heavy viscous hydrocarbon, for example, rendering a heavy viscous crude pipelinable, includes visbreaking, distillation and solvent extraction steps. A heavy viscous hydrocarbon is fed through the visbreaker which forms a feed to the distillation step. A heavier fraction from distillation is fed to a solvent extraction unit which produces a fraction which contains resin. At least a portion of the resin containing fraction separated in the solvent extraction unit is recycled and combined with the feed which is to be subject to visbreaking so that the total yield of products, residual and gas-free, is increased. The recycled resin reduces the tendency of the asphaltenes to separate from the oil and thereby reduces the tendency to lay down coke in the visbreaker; this allows higher conversion to upgraded liquid products.
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Alberta Oil Sands Technology & Research Authority
Chaudhuri O.
Gantz Delbert E.
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