Continuous fluidized-bed contactor with recycle of sorbent

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870499

Scott, Charles D ^[1]; Petersen, James N ^[2]; Davison, Brian H ^[3]

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1. Oak Ridge, TN
2. Moscow, ID
3. Knoxville, TN

A continuous fluidized-bed contactor containing sorbent particles is used to remove solutes from liquid solvents. As the sorbent particles, for example gel beads, sorb the solute, for example metal ion species, the sorbent particles tend to decrease in diameter. These smaller loaded sorbent particles rise to the top of the contactor, as larger sorbent particles remain at the bottom of the contactor as a result of normal hydraulic forces. The smaller loaded sorbent particles are then recovered, regenerated, and reintroduced into the contactor. Alternatively, the loaded sorbent particles may also slightly increase in diameter, or exhibit no change in diameter but an increase in density. As a result of normal hydraulic forces the larger loaded sorbent particles fall to the bottom of the contactor. The larger loaded sorbent particles are then recovered, regenerated, and reintroduced into the contactor.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5534153
• OSTI ID: 870499
• Country of Publication: United States
• Language: English

Related Subjects

continuous
fluidized-bed
contactor
recycle
sorbent
containing
particles
remove
solutes
liquid
solvents
example
beads
sorb
solute
metal
species
tend
decrease
diameter
loaded
rise
top
larger
remain
bottom
result
normal
hydraulic
forces
recovered
regenerated
reintroduced
alternatively
slightly
increase
exhibit
change
density
fall
sorbent particles
liquid solvent
particles remain
hydraulic force
fluidized-bed contactor
contactor containing
continuous fluidized-bed
containing sorbent
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