Development program on pressurized fluidized-bed combustion. Quarterly report, January--March 1976

Technical Report · Thu Jan 01 04:00:00 EST 1976

DOI:https://doi.org/10.2172/7275076· OSTI ID:7275076

Vogel, G. J.; Johnson, I.; Cunningham, P.

A development program on pressurized fluidized-bed combustion is being carried out in a bench-scale pilot plant capable of operating at 10-atm pressure. The concept involves burning fuels such as coal in a fluidized bed of particulate lime additive that reacts with the sulfur compounds formed during combustion to reduce air pollution. Nitrogen oxide emissions are also reduced at the combustion temperatures used, which are lower than those used in a conventional coal combustor. The CaSO/sub 4/ produced in the combustor is regenerated to CaO that is recycled to the combustor for removal of sulfur compounds. Information is presented on bench-scale regeneration experiments, TGA experiments on sulfation and regeneration rates of synthetic SO/sub 2/-sorbents containing metal oxides, bench-scale combustion experiments, regeneration by the CaSO/sub 4/-CaS reactions, coal combustion reactions, status of equipment fabrication, and mathematical modeling of the gas-solid combustion reactions. Current objectives are (1) to select and optimize a regeneration process, (2) to test the behavior of different limestones, dolomites, and synthetic additives during combustion and regeneration, and (3) to assess the behavior of biologically toxic trace elements and corrosive elements.

• Research Organization: Argonne National Lab., Ill. (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7275076
• Report Number(s): ANL/ES-CEN-1015; FE-1780-4
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
ADDITIVES
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COMBUSTION
DOLOMITE
ELEMENTS
ENERGY SOURCES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MATHEMATICAL MODELS
MINERALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PILOT PLANTS
REGENERATION
REMOVAL
RESERVOIR ROCK
ROCKS
SEDIMENTARY ROCKS
SULFATES
SULFUR COMPOUNDS
TRACE AMOUNTS