SOx/NOx sorbent and process of use

Patent · Tue Jan 19 00:00:00 EST 1993

OSTI ID:868636

Ziebarth, Michael S ^[1]; Hager, Michael J ^[2]; Beeckman, Jean W ^[1]; Plecha, Stanislaw ^[2]

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1. Columbia, MD
2. Baltimore, MD

An alumina sorbent capable of adsorbing NOx and SOx from waste gases and being regenerated by heating above 600.degree. C. is made by incorporating an alumina stabilizing agent into the sorbent. A preferred method is to add the stabilizer when the alumina is precipitated. The precipitated powder is formed subsequently into a slurry, milled and dripped to form the stabilizing spheroidal alumina particles. These particles are impregnated with an alkali metal or alkaline earth metal to form the stabilized sorbent. Alumina stabilizers include one or more of silica, lanthana, other rare earths, titania, zirconia and alkaline earths.

• Research Organization: MK-Ferguson Co
• DOE Contract Number: AC22-89PC88889
• Assignee: W. R. Grace & Co.-Conn. (New York, NY)
• Patent Number(s): US 5180703
• Application Number: 07/690,466
• OSTI ID: 868636
• Country of Publication: United States
• Language: English

Related Subjects

sox
nox
sorbent
process
alumina
capable
adsorbing
waste
gases
regenerated
heating
600
degree
incorporating
stabilizing
agent
preferred
method
add
stabilizer
precipitated
powder
formed
subsequently
slurry
milled
dripped
form
spheroidal
particles
impregnated
alkali
metal
alkaline
earth
stabilized
stabilizers
silica
lanthana
rare
earths
titania
zirconia
alumina particles
waste gases
preferred method
rare earths
waste gas
alkali metal
alkaline earth
rare earth
earth metal
stabilizing agent
sorbent capable
nox sorbent
alumina stabilizing
alumina sorbent
adsorbing nox
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