Improvement in the analysis of ashes from coal by spark-source mass spectrography

Technical Report · Thu Jul 01 04:00:00 EDT 1982

OSTI ID:6650130

Welcomer, T D

A material balance study was performed using spark source mass spectrography on Iowa and Colorado coal burned at the Iowa State University Power Plant. Sixty-two elements were analyzed in the influent coal, effluent bottom ash, fly ash from a primary dust collector, and fly ash from an electrostatic precipitator. The material balance was satisfactory for the majority of the elements. A computer application of the Franzen-Mauer-Schuy formula was developed to calibrate the photoplates. The results indicated an unexpected increase in the sensitivity of the emulsion due to increasing momentum of the ions. The suitability of three internal standards, Cu, Zr, and Ba, was examined for use in the material balance study. The relative sensitivity coefficients for the elements in low-temperature ashed coal and the effluent ashes were determined from the results of the analysis of twelve standard samples. The results of the analysis of ashed coal and other ashed by spark source mass spectrography were improved when line areas instead of peaks were measured, the mass spectral data were interpreted by computer methods, and an accurate calibration and computation scheme was developed. The enrichment of the elements in the effluent ashes was examined to determine the potential of these ashes as sources of some of these elements. 6 figures, 15 tables.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6650130
• Report Number(s): IS-T-990; ON: DE83004968
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
014000 -- Coal
Lignite
& Peat-- Combustion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
ACTINIDES
AEROSOL WASTES
ALKALI METALS
ALKALINE EARTH METALS
ALUMINIUM
ANTIMONY
ARSENIC
ASHES
BARIUM
BERYLLIUM
BORON
BROMINE
CADMIUM
CALCIUM
CARBONACEOUS MATERIALS
CERIUM
CHEMICAL ANALYSIS
CHLORINE
CHROMIUM
COAL
COBALT
COPPER
DATA
ELEMENTS
ENERGY SOURCES
EUROPIUM
EXPERIMENTAL DATA
FLUORINE
FLY ASH
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
GADOLINIUM
GALLIUM
GERMANIUM
HALOGENS
INFORMATION
IODINE
IRON
LANTHANUM
LITHIUM
MAGNESIUM
MANGANESE
MASS SPECTROSCOPY
MATERIAL BALANCE
MATERIALS
METALS
MOLYBDENUM
NEODYMIUM
NICKEL
NONMETALS
NUMERICAL DATA
PHOSPHORUS
POTASSIUM
POWER PLANTS
PRASEODYMIUM
QUANTITATIVE CHEMICAL ANALYSIS
RARE EARTHS
RESIDUES
RUBIDIUM
SAMARIUM
SCANDIUM
SELENIUM
SEMIMETALS
SILICON
SODIUM
SPECTROSCOPY
STRONTIUM
SULFUR
TERBIUM
THERMAL POWER PLANTS
TIN
TITANIUM
TRANSITION ELEMENTS
VANADIUM
WASTES
YTTRIUM
ZINC
ZIRCONIUM