Process for direct steam injection heating of oil sands slurry streams such as bitumen froth
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United States of America Patent
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Oct 17, 2017
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N/A
app pub date -
Mar 19, 2012
filing date -
Mar 22, 2011
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Abstract
In the field of oil sands processing, a process for heating an oil sands slurry stream such as bitumen froth containing bitumen and water and having variable heating requirements includes injecting steam directly into the froth at a steam pressure through a plurality of nozzles to achieve sonic steam flow; operating the plurality of the nozzles to vary steam injection by varying a number of the nozzles through which the injecting of the steam occurs in response to the variable heating requirements; and subjecting the oil sands slurry stream to backpressure sufficient to enable sub-cooling relative to the boiling point of water. A corresponding system is also provided.
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