Hydrocarbon stream separation system and method
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United States of America
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Feb 25, 2025
Grant Date -
May 19, 2022
app pub date -
Feb 4, 2022
filing date -
Feb 4, 2022
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Abstract
A system and method for separating a hydrocarbon feed stream by flashing the feed stream under vacuum to form a remaining flashed vapor comprising atmospheric hydrocarbons, vacuum distillable hydrocarbons and a non-volatile liquid; condensing the flashed vapor to a liquid using a two-stage condenser and heat recovery system; and recycling a portion of the condensed liquid to be flashed under vacuum. Separation is accomplished by combining atmospheric and vacuum separation in one column. The non-volatile liquid recovered from the vacuum vessel may comprise asphalt. This process also injects steam generated within the process into the vacuum vessel which is condensed in a two-stage condenser system to augment vacuum and aid in separation. The feed stream may comprise diluted bitumen which may be removed using a feed preparation vessel.
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