Chemistry of coal-related microparticles

Technical Report · Mon Jan 01 00:00:00 EST 1990

OSTI ID:6130154

Davis, E J; Krieger-Brockett, B

This research project involves the study of the coal macerals and sorbent microparticles used to remove SO{sub 2} and/or H{sub 2}S from process streams. To measure reaction rates a charged single microparticle is held electrodynamically in one or more laser beams by superposed ac and dc electrical fields. The use of the electrodynamic balance for microparticle studies was pioneered by one the principal investigators. One of the laser beams is used for light-scattering measurements to determine the particle size and to provide the excitation source for obtaining Raman spectra to chemically characterize the particle. The other beam, an infrared beam, is used to heat the particle electromagnetically. The first year of the research was devoted to preliminary experimental work and design studies. Although components and techniques must still be developed, experimental measurements on single macerals are now being done in this laboratory. 1 fig.

• Research Organization: Washington Univ., Seattle, WA (USA). Dept. of Chemical Engineering
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: FG22-89PC89790
• OSTI ID: 6130154
• Report Number(s): DOE/PC/89790-5; ON: DE91008451
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
EXINITE
RAMAN SPECTROSCOPY
MACERALS
CHEMICAL ANALYSIS
ADSORBENTS
BITUMINOUS COAL
CHARGED PARTICLES
DESULFURIZATION
ELECTRODYNAMICS
PARTICLES
PROGRESS REPORT
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
LASER SPECTROSCOPY
MATERIALS
SPECTROSCOPY
010600* - Coal
Lignite
& Peat- Properties & Composition
010800 - Coal
Lignite
& Peat- Waste Management
400102 - Chemical & Spectral Procedures