Experimental/engineering support for environmental protection agencies fluidized-bed combustion (fbc) program: final report. Volume I. Sulfur oxide control. Final report Dec 75-Dec 78

Technical Report · Tue Jan 01 04:00:00 EST 1980

OSTI ID:6670577

Ulerich, N H; Vaux, W G; Newby, R A; Keairns, D L

The report gives results of an investigation of the desulfurization performance and attrition behavior of limestone and dolomite sorbents for atmospheric and pressurized fluidized-bed combustion (FBC) systems used with coal. It gives results of experimental thermogravimetric analyses (TGAs) of the kinetics of SO2 capture by sorbents, and discusses the further development and application of a kinetic model for desulfurization, based on TGA results. It also gives results of a basic assessment of sorbent attrition mechanisms in FBC, including some laboratory experimental tests. Some conclusions from this work are: (1) pressurized FBC systems can achieve effective SO2 removal at high temperatures (1000 C) or high excess air (300%) without an increase in sorbent requirements over lower temperature/excess air cases; (2) the agreement between actual FBC data and the TGA-based desulfurization model has been further demonstrated, using data from both atmospheric and pressurized FBCs; and (3) sorbent attrition screening tests indicate that sorbent type and FBC operating parameters will affect particle attrition. The report presents an experimental-data-supported sorbent attrition model for the bubbling bed regime in an FBC.

• Research Organization: Westinghouse Research and Development Center, Pittsburgh, PA (USA)
• OSTI ID: 6670577
• Report Number(s): PB-80-188402
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
ALKALINE EARTH METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATE ROCKS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
COMBUSTORS
DESULFURIZATION
DOLOMITE
FLUE GAS
FLUIDIZED-BED COMBUSTORS
GASEOUS WASTES
INDUSTRIAL WASTES
KINETICS
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION ABATEMENT
REACTION KINETICS
REMOVAL
ROCKS
SEDIMENTARY ROCKS
SORPTIVE PROPERTIES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SURFACE PROPERTIES
TESTING
WASTES