Catalytic conditioning of fly ash without addition of SO/sub 3/ from external sources

Journal Article · Sat Jan 01 04:00:00 EST 1977 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es60124a007· OSTI ID:7219832

Kanowsi, S; Coughlin, R W

Data and experimental results are presented to demonstrate that catalytic oxidation of SO/sub 2/ at the low concentrations normally present in flue gas from low sulfur coal can produce SO/sub 3/ in concentrations sufficiently large to cause good conditioning by significantly lowering the resistivity of fly ash. This was accomplished by disposing catalysts in streams of SO/sub 2/-bearing flue gas and measuring the effects of the gases so treated on the resistivity of carbon-free fly ash obtained from several different coal-fired power stations. Concentrations of SO/sub 2/ and SO/sub 3/ were measured by gas sampling and chemical analysis. The effects of moisture and temperature were also investigated.

• Research Organization: Lehigh Univ., Bethlehem, PA
• OSTI ID: 7219832
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 11:1; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200200 -- Fossil-Fueled Power Plants-- Waste Management
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL WASTES
AIR POLLUTION
CARBONACEOUS MATERIALS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
ELECTROSTATIC PRECIPITATORS
ENERGY SOURCES
EQUIPMENT
FLUE GAS
FLY ASH
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
GASEOUS WASTES
OPERATION
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFUR TRIOXIDE
THERMAL POWER PLANTS
WASTES