Isotope dilution study of exchangeable oxygen in premium coal samples

Conference · Thu Jan 01 00:00:00 EST 1987 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:6136926

Finseth, D

A difficulty with improving the ability to quantitate water in coal is that truly independent methods do not always exist. The true value of any analytical parameter is always easier to determine if totally independent methods exist to determine that parameter. This paper describes the possibility of using a simple isotope dilution technique to determine the water content of coal and presents a comparison of these isotope dilution measurements with classical results for the set of Argonne coals from the premium coal sample program. Isotope dilution is a widely used analytical method and has been applied to the analysis of water in matrices as diverse as chicken fat, living humans, and coal. Virtually all of these applications involved the use of deuterium as the diluted isotope. This poses some problems if the sample contains a significant amount of exchangeable organic hydrogen and one is interested in discriminating exchangeable organic hydrogen from water. This is a potential problem in the coal system. To avoid this potential problem /sup 18/O was used as the diluted isotope in this work.

• Research Organization: Pittsburgh Energy Technology Center, PA (USA)
• OSTI ID: 6136926
• Report Number(s): CONF-870802-
• Journal Information: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States), Vol. 32:4; Conference: 194. American Chemical Society national meeting, New Orleans, LA, USA, 30 Aug - 4 Sep 1987
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COAL
QUANTITATIVE CHEMICAL ANALYSIS
OXYGEN 18
ISOTOPE DILUTION
WATER
MASS SPECTROSCOPY
EXPERIMENTAL DATA
MOISTURE
OXYGEN
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
DATA
ELEMENTS
ENERGY SOURCES
EVEN-EVEN NUCLEI
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
INFORMATION
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
MATERIALS
NONMETALS
NUCLEI
NUMERICAL DATA
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
SPECTROSCOPY
STABLE ISOTOPES
TRACER TECHNIQUES
010600* - Coal
Lignite
& Peat- Properties & Composition
400102 - Chemical & Spectral Procedures