Polycyclic aromatic compounds in coal-derived products: Relation between structure and abundance

Conference · Mon Sep 01 04:00:00 EDT 1986 · Am. Chem. Soc., Div. Pet. Chem., Gen. Pap., Prepr.; (United States)

OSTI ID:7098379

Lee, M L; Nishioka, M; Chang, H C

A number of coal liquids, coal tars, and coal extracts were separated into chemical classes and characterized by capillary column gas chromatography. Selective stationary phases including a newly synthesized biphenyl polysiloxane and a liquid crystalline polysiloxane were used to resolve these complex mixtures into specific compounds for identification and quantitation. The chemical classes characterized included the polycyclic aromatic hydrocarbons (PAH), sulfur heterocycles (PASH), nitrogen heterocycles (PANH), amino-substituted polycyclic aromatic compounds (PAC), and hydroxy-substituted PAC. Furthermore, compounds containing two heteroatoms were also characterized. Nitrogen- and sulfur-selective detectors, as well as mass spectrometry, were used to confirm identifications. It was found that preferred aromatic structures and positions of substitution were common to all of the chemical classes. This evidence is useful in predicting the chemical compositions of coal-derived materials and, ultimately, the structure of coal.

• Research Organization: Dept. of Chemistry, Brigham Young Univ. Provo, UT 84602
• OSTI ID: 7098379
• Report Number(s): CONF-860911-
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Gen. Pap., Prepr.; (United States) Journal Volume: 31:3
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ABUNDANCE
AROMATICS
ARYL RADICALS
AZAARENES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
CHROMATOGRAPHY
COAL EXTRACTS
COAL LIQUEFACTION
COAL LIQUIDS
COAL TAR
FLUIDS
FRACTIONATION
GAS CHROMATOGRAPHY
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROXY COMPOUNDS
LIQUEFACTION
LIQUIDS
MASS SPECTROSCOPY
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SILICON COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHENYL RADICALS
POLYCYCLIC AROMATIC HYDROCARBONS
POLYCYCLIC SULFUR HETEROCYCLES
RADICALS
SEPARATION PROCESSES
SILOXANES
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TAR
THERMOCHEMICAL PROCESSES
YIELDS