Method and system for fines management in slurry processes
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United States of America Patent
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Issued Date -
Jun 24, 2010
app pub date -
Nov 20, 2009
filing date -
Dec 18, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system is provided for controlling the amount of fines in a three-phase slurry bubble reactor. The method comprises introducing a portion of the slurry into a hydrocyclone adapted to recover in excess of 98 wt % of the coarse catalyst in the underflow stream of the hydrocyclone and to provide an overflow stream containing catalyst fines. The underflow stream is returned to the slurry column while the fines-containing overflow stream is transferred for disposal or further treatment. By providing the hydrocyclone with an underflow stream opening that is greater than the overflow stream opening, slurries containing high solids loading fines are efficiently separated from coarse solids, thereby effectively controlling the fines content in the slurry column.
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