Method for recovering solvent from froth treatment tailings with in-situ steam generation
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United States of America Patent
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Aug 1, 2017
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N/A
app pub date -
Mar 15, 2016
filing date -
Mar 15, 2016
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Abstract
A method for recovering hydrocarbon diluent from froth treatment tailings comprising bitumen, solids, hydrocarbon diluent and water is provided, comprising: introducing the froth treatment tailings into a vessel chamber and allowing the coarse solids to settle to the bottom of the vessel and form a solids layer having a portion of hydrocarbon diluent and a portion of water trapped therein; and heating the water in the solids layer to generate steam bubbles in-situ and strip the hydrocarbon diluent associated with the coarse solids to produce stripped tailings.
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