Chemical and biological characterization of hydroaromatic compounds in coal-derived synfuels

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5722393

Wozniak, T J

Synthetic fuels produced from coal have been shown to be mutagenic and carcinogenic. Catalytic hydrogenation eliminates the mutagenic amino polycyclic aromatic hydrocarbons (APAH) and improves the process efficiency. As a result, the partially-hydrogenated polycyclic aromatic hydrocarbons (hydroaromatics) increase in abundance and can constitute up to 80% of the final product. Unfortunately, there has been little work on the analytical chemistry and biological activity of this class of compounds. The goal of this research was the development of analytical techniques to separate and identify hydroaromatics and to apply these techniques to several coal-derived liquids (SRC-II, H-Coal, and ITSL). The experimental approach used high resolution gas chromatography, mass spectrometry, and ultraviolet and nuclear magnetic resonance spectroscopy. Rules were developed governing the identification of specific hydroaromatic standards. These standards were synthesized either by catalytic hydrogenation or metal-ammonia reduction of polycyclic aromatic hydrocarbons. Isolation of a hydroaromatic fraction from coal-derived liquids was achieved by column chromatography using picric acid coated on alumina. The separation scheme resulted in four fractions consisting of aliphatics, hydroaromatics, polycyclic aromatic hydrocarbons, and amino polycyclic aromatic hydrocarbons. Analysis of the hydroaromatic fraction resulted in the chemical characterization of specific hydroaromatics.

• OSTI ID: 5722393
• Country of Publication: United States
• Language: English

Related Subjects

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ABSORPTION SPECTROSCOPY
ALKANES
ALKENES
ALKYNES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMINES
AROMATICS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL EXPLOSIVES
CHROMATOGRAPHY
COAL LIQUIDS
DATA
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
EXPLOSIVES
FLUIDS
FUELS
GAS CHROMATOGRAPHY
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
MAGNETIC RESONANCE
MASS SPECTROSCOPY
NITRO COMPOUNDS
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHENOLS
PICRIC ACID
POLYCYCLIC AROMATIC AMINES
POLYCYCLIC AROMATIC HYDROCARBONS
QUALITATIVE CHEMICAL ANALYSIS
RADIATIONS
RESONANCE
SEPARATION PROCESSES
SPECTROSCOPY
SYNTHETIC FUELS
ULTRAVIOLET RADIATION