Activation and reactivity of novel calcium-based sorbents for dry SO/sub 2/ control in boilers. Report for October 1986-July 1988

Technical Report · Mon Aug 01 04:00:00 EDT 1988

OSTI ID:6679649

Jozewicz, W; Kirchgessner, D A

Chemically modified Ca(OH)/sub 2/ sorbents for SO/sub 2/ control in utility boilers were tested in an electrically heated, bench-scale isothermal flow reactor, operated at between 700 and 1000 C and residence times of from 0.6 to 2 sec calculated from bulk-gas flow rates. Novel surfactant-modified Ca(OH)/sub 2/--SM-Ca(OH)/sub 2/--sorbents were compared to conventional Ca(OH)/sub 2/ produced by dry hydration, DH-Ca(OH)/sub 2/. Sorbents were activated in the flow reactor. Changes in the pore structure of Ca(OH)/sub 2/ sorbents reacting with SO/sub 2/ also were investigated. The effect of thermal sintering on pore structure of sorbents reacting with SO/sub 2/ was eliminated. The degree of conversion was controlled by varying gas-phase mass-transfer resistance (SO/sub 2/ concentrations from 50 to 3000 ppm).

• Research Organization: Acurex Corp., Research Triangle Park, NC (USA)
• OSTI ID: 6679649
• Report Number(s): PB-88-250212/XAB
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION ABATEMENT
BOILERS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
DOCUMENT TYPES
EXHAUST GASES
FLUIDS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
GASES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POWER PLANTS
PROGRESS REPORT
SORPTION
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
WASTES