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 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 stabilized 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. 3 figs.
- Issue Date:
- OSTI Identifier:
- 46289
- Assignee:
- W. R. Grace and Co.-Conn., New York, NY (United States) PTO; SCA: 010800; 540120; PA: EDB-95:075586; SN: 95001384506
- Patent Number(s):
- US 5,413,771/A/
- Application Number:
- PAN: 7-955,771
- Contract Number:
- AC22-89PC88889
- Resource Relation:
- Other Information: PBD: 9 May 1995
- Research Org:
- MK-Ferguson Co
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; 54 ENVIRONMENTAL SCIENCES; ADSORBENTS; CHEMICAL PREPARATION; ALUMINIUM OXIDES; COMBINED SOXNOX PROCESSES; IMPREGNATION; SILICON OXIDES; LANTHANUM OXIDES; TITANIUM OXIDES; ZIRCONIUM OXIDES; RARE EARTHS; ALKALINE EARTH METALS