Testing of wall-fired furnaces to reduce emissions of NO/sub x/ and SO/sub x/: Volume 1. Final report, for August 1982-November 1983
The report gives results of a study to clarify the processes that control sulfur capture by dry sorbents injected directly into a pulverized-coal-fired system, and to develop methods for generalizing data from one test furnace to another and from test facilities to fired application. Most experiments were conducted in a 1 million Btu/hr down-fired furnace to determine the effects of: fuel type, sorbent type, injection location, peak flame temperature, SO/sub 2/ concentration, and burner zone stoichiometry. Conclusions of the study include: (1) the concentration of SO/sub 2/ in the natural-gas-fired tests had a slight effect on sulfur capture, increasing capture at Ca/S = 2 from 26% at 500 ppm to 40% at 3500 ppm SO/sub 2/; (2) the concentration of mineral matter in the system had a very strong impact on capture at all SO/sub 2/ concentrations and Ca/S ratios tested; (3) injecting the sorbent downstream from the main flame resulted in improved utilization in coal flames; and (4) the effect of sorbent type on capture with a given fuel was dependent on the firing conditions - including sorbent injection location and thermal conditions (the hydrated limes seemed to be most sensitive to thermal conditions and the Vicron limestone least sensitive). Dolomite gave the highest capture with all of the fuels tested.
- Research Organization:
- Energy and Environmental Research Corp., Irvine, CA (USA)
- OSTI ID:
- 5081711
- Report Number(s):
- PB-85-224632/XAB
- Country of Publication:
- United States
- Language:
- English
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010900* -- Coal
Lignite
& Peat-- Environmental Aspects
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
ALKALINE EARTH METAL COMPOUNDS
ALKANES
BOILERS
BURNERS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATE MINERALS
CARBONATES
CHALCOGENIDES
COAL
COMBUSTION PRODUCTS
CONTROL
DOLOMITE
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUEL-AIR RATIO
FUELS
FUNCTIONAL MODELS
FURNACES
GAS FUELS
GASES
HYDROCARBONS
INDUSTRIAL WASTES
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MATERIALS
MINERALS
NATURAL GAS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PILOT PLANTS
POLLUTION ABATEMENT
PROPANE
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES