Characterization of high-ash Brazilian (Mina do Leao) coal-derived liquids by high performance liquid chromatography group type separation

Journal Article · Tue Jan 01 00:00:00 EST 1985 · J. Liquid Chromatogr.; (United States)

DOI:https://doi.org/10.1080/01483918508067075· OSTI ID:6417977

Lancas, F M; McNair, H M

A comparative study was carried out on two high-ash coals, Wyodak III (American) and Mina do Leao (Brazilian), with respect to their content of saturates, olefins, aromatic hydrocarbons and polar compounds. A pyridine extract of each coal was fractionated by a silica gel preparative scale column generating four fractions of increasing polarity. Each fraction was collected and examined by normal phase HPLC using ''on-line'' coupled silica and cyano-bonded columns. The results show that preparative scale fractionation alone is not enough to characterize coal-derived liquids, but it will be useful as a first step to generate fractions for HPLC characterization.

• Research Organization: Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
• OSTI ID: 6417977
• Journal Information: J. Liquid Chromatogr.; (United States), Vol. 8:2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
COMPARATIVE EVALUATIONS
SOLVENT EXTRACTION
COAL EXTRACTS
CHEMICAL COMPOSITION
FRACTIONATION
LIQUID COLUMN CHROMATOGRAPHY
ALKENES
AROMATICS
CHEMICAL ANALYSIS
COAL LIQUIDS
HYDROCARBONS
PYRIDINE
SILICA GEL
ADSORBENTS
AZINES
CARBONACEOUS MATERIALS
CHROMATOGRAPHY
ENERGY SOURCES
EXTRACTION
FLUIDS
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
LIQUIDS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
SEPARATION PROCESSES
010600* - Coal
Lignite
& Peat- Properties & Composition