Separation and determination of hydroxy-functional polycyclic aromatic hydrocarbons in coal liquefaction materials

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5989125

Lucke, R B; Later, D W; Chess, E K

Recently, an integrated multiple-stage chromatographic method was reported for reducing the chemical complexity of neutral polycyclic aromatic hydrocarbons (PAH) coal liquid isolates by sequentially using distillation, adsorption chromatography and reverse phase high performance liquid chromatography (HPLC) separation techniques. In this paper, this approach is extended to the separation and characterization of the hydroxy-PAH in coal-derived materials. Capillary column GC, GC/MS and low resolution accurate mass GC/MS were used for the identification of individual hydroxy-PAH components in each subfraction. This separation method resulted in chemically less complex subfraction which enabled more detailed characterization of both trace level and major hydroxy-PAH compounds. It provided isolation of a discrete chemical class in which hydroxy-PAH with an additional nitrogen, oxygen, or sulfur functional group were present. Also, several isomeric hydroxy-PAH were separated into discrete subfractions with parent hydroxy-PAH separated from their alkyl species. The utilization of this separation method to provide HPLC subfractions from a coal liquid for biological testing may give valuable information in understanding the effect of the complex sample matrix on the biological expression of hydroxy-PAH and difunctional-PAH components present in coal-derived process materials. 12 references, 3 figures, 1 table.

• Research Organization: Pacific Northwest Labs., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5989125
• Report Number(s): PNL-SA-12293; CONF-8410225-2; ON: DE85007045
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
AROMATICS
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COAL LIQUEFACTION
COAL LIQUIDS
DATA
DIAGRAMS
DISTILLATION
EXPERIMENTAL DATA
FLOWSHEETS
FLUIDS
FRACTIONATION
GAS CHROMATOGRAPHY
HYDROCARBONS
INFORMATION
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
MASS SPECTROSCOPY
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
QUALITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SPECTROSCOPY
SRC-II PROCESS
THERMOCHEMICAL PROCESSES