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Title: Sox/Nox Sorbent And Process Of Use

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.
Inventors:
 [1];  [2];  [1];  [3]
  1. (Columbia, MD)
  2. (Caraopolis, PA)
  3. (Baltimore, MD)
Issue Date:
OSTI Identifier:
879196
Assignee:
W. R. Grace & Co.-Conn. (New York, NY) OSTI
Patent Number(s):
US 5427995
Application Number:
08/021709
Contract Number:
AC22-89PC88889
Research Org:
MK-FERGUSON CO
Country of Publication:
United States
Language:
English