Computerized pyrolysis mass spectrometry of coal maceral concentrates

Conference · Sat Jan 01 04:00:00 EST 1983 · Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:5843029

Meuzelaar, H L.C.; Harper, A M; Pugmire, R J

Curie-point pyrolysis mass spectrometry (Py-Ms) technique was used to characterize a set of 30 selected maceral concentrates. Seventeen of the samples originated from the maceral collection of the British National Coal Board and had been prepared by the sink/flotation method. Thirteen maceral concentrate fractions were prepared from two US coals by the cesium chloride gradient centrifugation method. It was concluded that the use of Py-MS in combination with multivariant statistical analysis provides valuable information on the specific chemical characteristics of coal maceral concentrates as well as on the influence of depositional environment and coalification processes. The results obtained appeared to agree well with generally accepted views on the chemical nature and origin of coal macerals. The presence of distinct peak patterns in the sporinites appeared to represent more or less intact (poly)isoprenoid and/or related polymeric hydrocarbon moities. (BLM)

• Research Organization: Univ. of Utah, Salt Lake City
• DOE Contract Number: FG22-80PC30242
• OSTI ID: 5843029
• Report Number(s): CONF-830303-
• Conference Information: Journal Name: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 28:1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010406* -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
010600 -- Coal
Lignite
& Peat-- Properties & Composition
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CURIE POINT
DATA
DECOMPOSITION
EXPERIMENTAL DATA
INFORMATION
MACERALS
MASS SPECTROSCOPY
NUMERICAL DATA
ORIGIN
PHYSICAL PROPERTIES
PYROLYSIS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE