METHOD FOR PRODUCING PIPELINE SPECIFICATION BITUMEN FROM OIL SANDS MINING AND EXTRACTION FACILITIES USING NON-MISCIBLE SOLVENTS AND CENTRIFUGE PROCESSING
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United States of America Patent
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Jun 27, 2019
app pub date -
Dec 20, 2018
filing date -
Dec 20, 2018
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Abstract
A method of producing pipeline quality bitumen, includes the steps of: receiving bitumen diluted with a diluent solvent from a secondary froth treatment process; thermally dehydrating the diluted bitumen at a temperature above about 100° C. and below the boiling point of the diluent solvent; mixing a high-density, non-miscible solvent (HD-NMS) and optionally, a low density, miscible solvent (LD-MS) to the diluted bitumen; and separating any remaining fine solids and precipitates by gravitational separation at a temperature above about 100° C. and below the boiling point of the diluent solvent.
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