Characterization of coal chars from a flash pyrolysis process by cross polarization/magic angle spinning /sup 13/C NMR

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

OSTI ID:5397760

Chou, M M ^[1]; Dickerson, D R; Mckay, D R; Frye, J S

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1. Illinois State Geological Survey, Champaign

In the last two decades, flash pyrolysis has been used to investigate the sturcture of coal and shale. The development of /sup 13/C cross polarization (CP) and Magic Angle Spinning (MAS) Nuclear Magnetic Resonance (NMR) spectroscopy with high-power proton decoupling has allowed investigators to obtain spectra of the organic matter in solid coal. This paper reports the results of this technique applied to the study of chars produced by the flash pyrolysis of coal at progressively higher temperatures. The investigation has given valuable insight into the changes of organic composition of coal during carbonization as well as the optimum temperature for efficient conversion of coal into liquids and gases. (2 tables, 3 figures, 28 refs.)

• OSTI ID: 5397760
• Report Number(s): CONF-830814-Vol.4
• Conference Information: Journal Name: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 28:5
• 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
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101 -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
AROMATICS
BITUMINOUS COAL
BLACK COAL
CARBON 13
CARBON ISOTOPES
CARBONACEOUS MATERIALS
CHARS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL
DECOMPOSITION
ENERGY SOURCES
EVEN-ODD NUCLEI
FLASH HEATING
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
HEATING
ISOTOPES
LIGHT NUCLEI
MATERIALS
MATTER
NMR SPECTRA
NUCLEI
ORGANIC COMPOUNDS
PYROLYSIS
PYROLYSIS PRODUCTS
SEPARATION PROCESSES
SPECTRA
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
THERMOCHEMICAL PROCESSES
VOLATILE MATTER