Evaluation of the effect of coal cleaning on fugitive elements: Phase 4, Identification of mineral forms in coal: Final report for the period May 1983 to December 1986. [Mineral, major and trace elements in feed and deep cleaned coal]
This report describes the final phase of a program, activated in 1977, to study the removal of trace elements from coal during cleaning by both controlled laboratory procedures and in commercial coal preparation plants. The Phase IV studies, discussed herein, were originally intended to focus on the mineral constituents in the coal ashes and their relative amounts with respect to known major and trace element concentrations. However, because of changing priorities, the scope of work was redirected in mid-1984 to the characterization of major elements, trace elements, and mineral forms in ultra-cleaned coals from several advanced coal cleaning processes under development. These included the Otisca T, TRW Gravimelt, and LICADO (Liquid Carbon Dioxide) processes. Data are presented for major elements (Si, Al, Fe, Ca, Mg, Ti, P, Na, and K) and trace elements (As, B, Be, Cd, Co, Cu, Mn, Ni, Pb, Sb, Sr, V, and Zn) in feed and product coals from the three processes cited above. The data are evaluated in terms of reduction or enrichment of the ash elemental constituents during coal cleaning, as well as implications for gas turbine slurry fuel applications. Mineral constituents in most of the ultra-clean coal feed and product fractions were identified using X-ray diffraction techniques, and reductions in certain mineral components during coal cleaning were apparent. A limited amount of data was obtained on changes in mineral constituents during physical separations of Illinois No. 6 coal fines (minus 30 mesh). A novel method for the direct determination of certain volatile trace elements (e.g., As, Hg, Se, and Sb) in milligram-quantities of whole coal showed sufficient potential to warrant further investigation. 7 refs., 5 figs., 16 tabs.
- Research Organization:
- BCR National Lab., Monroeville, PA (USA)
- DOE Contract Number:
- AC22-83PC62690
- OSTI ID:
- 6314103
- Report Number(s):
- DOE/PC/62690-T7; BCR-L-1551; ON: DE87008697
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evaluation of the effect of coal cleaning on fugitive elements. Phase IV. Identification of mineral forms in coal. Quarterly progress report No. 7, December 1, 1984-February 28, 1985. [Otisca and Licado process]
Evaluation of the effect of coal cleaning on fugitive elements. Phase IV. Identification of mineral forms in coal. Quarterly progress report No. 2, September 1-November 30, 1983
Related Subjects
ASHES
EMISSION SPECTROSCOPY
COAL
CHEMICAL COMPOSITION
X-RAY DIFFRACTION
COAL PREPARATION
GRAVIMELT PROCESS
OTISCA PROCESS
ABSORPTION SPECTROSCOPY
ALUMINIUM
ANTIMONY
ARSENIC
BERYLLIUM
BORON
CADMIUM
CALCIUM
COBALT
COPPER
ELEMENTS
INFRARED SPECTRA
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
MINERALS
NICKEL
NUMERICAL DATA
PHOSPHORUS
POTASSIUM
SELENIUM
SILICON
SODIUM
STRONTIUM
TITANIUM
TRACE AMOUNTS
VANADIUM
ZINC
ALKALI METALS
ALKALINE EARTH METALS
CARBONACEOUS MATERIALS
COHERENT SCATTERING
DATA
DIFFRACTION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HEAVY MEDIA SEPARATION
INFORMATION
MATERIALS
METALS
NONMETALS
RESIDUES
SCATTERING
SEMIMETALS
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
TRANSITION ELEMENTS
010300* - Coal
Lignite
& Peat- Preparation- (1987-)
010600 - Coal
Lignite
& Peat- Properties & Composition