SOx/NOx sorbent and process of use

Patent · Tue Jan 19 04:00:00 EST 1993

OSTI ID:6287324

Ziebarth, M S; Hager, M J; Beeckman, J W; Plecha, S

An alumina sorbent capable of adsorbing NOx and SOx from waste gases and being regenerated by heating above 600 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 and Co.-Conn., New York, NY (United States)
• Patent Number(s): US 5180703; A
• Application Number: PPN: US 7-690466
• OSTI ID: 6287324
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ADSORBENTS
ADSORPTION
AIR POLLUTION CONTROL
ALKALI METALS
ALKALINE EARTH METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CONTROL
DENITRIFICATION
DESULFURIZATION
DISPERSIONS
ELEMENTS
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
IMPREGNATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MACHINING
METALS
MILLING
MIXTURES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
PRECIPITATION
RARE EARTH COMPOUNDS
SEPARATION PROCESSES
SILICON COMPOUNDS
SILICON OXIDES
SLURRIES
SORPTION
SULFUR COMPOUNDS
SULFUR OXIDES
SUSPENSIONS
SYNTHESIS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
WASTES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES