Separation of hydroaromatics and polycyclic aromatic hydrocarbons and determination of tetralin and naphthalene in coal-derived solvents

Journal Article · Thu Dec 01 04:00:00 EST 1977 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac50022a037· OSTI ID:5205229

Schabron, J F; Hurtubise, R J; Silver, H F

Tetralin and naphthalene in a coal liquefaction recycle solvent were determined by high performance liquid chromatography (HPLC) with a ..mu..-Bondapak C/sub 18/ stationary phase and a methanol:water mobile phase. Initially two fractions were collected from an aluminum oxide open column. The first fraction contained tetralin and the second naphthalene. The standard addition method was employed to determine tetralin and naphthalene. The standard deviation was 0.024% for tetralin and 0.035% for naphthalene. Several aromatic and hydroaromatic compounds were identified by their chromatographic behavior and by their fluorescence excitation and emission spectra. A correlation factor which relates the log k' values for polycyclic aromatic hydrocarbons (PAH), alkyl-substituted aromatic hydrocarbons, and hydroaromatics to certain structural features was developed. The results from this work show the possibility of developing an overall separation and characterization scheme for complex mixtures of aromatic and hydroaromatic compounds.

• Research Organization: Univ. of Wyoming, Laramie
• OSTI ID: 5205229
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 49:14; ISSN ANCHA
• 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
400102 -- Chemical & Spectral Procedures
ACCURACY
AROMATICS
CHROMATOGRAPHY
COAL LIQUEFACTION
COAL LIQUIDS
CONDENSED AROMATICS
HYDROCARBONS
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
NAPHTHALENE
ORGANIC COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
SENSITIVITY
SEPARATION PROCESSES
SOLVENTS
TETRALIN