Sox/Nox Sorbent And Process Of Use

Patent · 27 June 1995

OSTI ID:879196

Ziebarth, Michael S ^[1]; Hager, Michael J ^[2]; Beeckman, Jean W ^[1]; Plecha, Stanislaw ^[3]

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1. Columbia, MD
2. Caraopolis, PA
3. Baltimore, MD

An alumina sorbent capable of adsorbing NOx and SOx from waste gases and being regenerated by heating above 650.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 spray dried to form the stabilized spheroidal alumina particles having a particle size of less than 500 microns. 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 5427995
• Application Number: 08/021709
• OSTI ID: 879196
• Country of Publication: United States
• Language: English