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| Title | Date | Subject | Description | ||
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Coking contaminated oil shale or tar sand oil on retorted solid fines | 1985-03-26 | Patent; Heavy oil; Oil shale; Tar sand oil; Coking; Pyrolysis oil vapors; Retorted solid fines; Pyrolysis oil; Inert stripping gas; Coking contaminated | Heavy oil fraction of pyrolysis oil vapors containing concentrated contaminants is coked on retorted fine solids contained in a coking zone separate from a retorting vessel characterized by the presence of an inert stripping gas of a rate sufficient to lower the dew point of the pyrolysis oil. |
| 2 |
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Monitoring surfactant content to control hot water process for tar sand | 1991-04-23 | Patent; Hot water process; Tar sand; Extraction; Surfactants | The present invention is based on the following: (1) that when tar sand is conditioned and diluted in the hot water extraction process, there are two classes of anionic surfactants (originating from carboxylate and sulfonate groups) present in the process water; (2) that each of these surfactants ha... |
| 3 |
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Process to separate bituminous material from sand (tar sands) | 1982-08-03 | Bituminous sand; oil sand; tar sand; separate bituminous material from sand; bitumen separation | Bituminous sand such as oil sand or tar sand is mixed with a halogenated organic solvent which has a density greater than that of water at the same temperature. The slurry is continuously transferred to a conveyor system which is at least partially submerged in water, with the slurry being fed onto ... |
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