Draft tube for catalyst rejuvenation and distribution
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United States of America Patent
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Apr 9, 2002
Grant Date -
N/A
app pub date -
Aug 13, 1998
filing date -
Dec 18, 1992
priority date (Note) -
In Force
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Abstract
Catalyst in a slurry phase reactor is rejuvenated and uniformly distributed in said reactor using a substantially vertical draft tube fully immersed in the slurry which utilizes a rejuvenating gas injected substantially near the bottom of the substantially vertical draft tube whereby catalyst near the bottom of the slurry phase reactor is drawn up the draft tube and discharged from the top of the draft tube near the top of the slurry phase in said reactor.
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