Chemistry of coal-related microparticles. Quarterly report, March 1, 1992--May 31, 1992

Technical Report · Tue May 26 00:00:00 EDT 1992

DOI:https://doi.org/10.2172/10168002· OSTI ID:10168002

Davis, J E; Krieger-Brockett, B

This research project involves the study of coal macerals and sorbent microparticles used to remove S0{sub 2} and/or H{sub 2}S from process streams. To measure reaction rates a charged single microparticle will be 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 of 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.

• Research Organization: Washington Univ., Seattle, WA (United States). Dept. of Chemical Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-89PC89790
• OSTI ID: 10168002
• Report Number(s): DOE/PC/89790-10; ON: DE92018452
• Resource Relation: Other Information: PBD: 26 May 1992
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CALCIUM OXIDES
SORPTIVE PROPERTIES
SULFUR DIOXIDE
REMOVAL
HYDROGEN SULFIDES
PROGRESS REPORT
COAL
MACERALS
CHEMICAL REACTION KINETICS
LASERS
ELECTRIC FIELDS
PARTICLE SIZE
RAMAN SPECTROSCOPY
INFRARED RADIATION
010402
010800
400201
PURIFICATION AND UPGRADING
WASTE MANAGEMENT
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES