The determination of the hydroxyl and carboxylic acid content of coal macerals using combined chemical and spectroscopic techniques

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:6791745

Choi, Chol-yoo; Muntean, J V; Thompson, A R

Macerals were separated from two high volatile bituminous coals obtained from the Argonne Premium Coal Sample Program and one high volatile bituminous coal from the Pennsylvania State University Coal Sample Bank. A preliminary survey of the nature of these macerals using chemical and spectroscopic techniques are reported. Alkylation using /sup 13/C enriched methyl iodide followed by solid /sup 13/C NMR analysis were used to determine the concentrations of acidic OH and CH sites in these macerals. The relative quantities of various types of methyl ethers and methyl esters were also estimated from the NMR spectra. 19 refs., 4 figs., 4 tabs.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6791745
• Report Number(s): CONF-8809161-2; ON: DE89000611
• Resource Relation: Conference: Symposium on Argonne premium coal samples, Los Angeles, CA, USA, 25 Sep 1988; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
MACERALS
STRUCTURAL CHEMICAL ANALYSIS
ALKYLATION
BITUMINOUS COAL
CARBON 13
CHEMICAL SHIFT
COAL
ESTERS
ETHERS
METHYL IODIDE
MOLECULAR STRUCTURE
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
SEPARATION PROCESSES
SPECTROSCOPY
BLACK COAL
CARBON ISOTOPES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
ENERGY SOURCES
EVEN-ODD NUCLEI
FOSSIL FUELS
FUELS
HALOGENATED ALIPHATIC HYDROCARBONS
IODINATED ALIPHATIC HYDROCARBONS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MATERIALS
NUCLEI
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
RESONANCE
SPECTRA
STABLE ISOTOPES
010600* - Coal
Lignite
& Peat- Properties & Composition