Separation of solvent-refined coal into solvent-derived fractions

Journal Article · Mon Mar 01 04:00:00 EST 1982 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00240a007· OSTI ID:5324537

Boduszynski, M M; Hurtubise, R J; Silver, H F

A method for the separation of solvent-refined coal (SRC) and hydrotreated SRC into n-hexane soluble 'oils', toluene soluble n-hexane insoluble 'asphaltenes', and pyridine soluble toluene insoluble 'preasphaltenes' was developed. The separation into solvent-derived fractions was achieved by eluting a SRC sample which was coated on an inert support material (Fluoropak) from a liquid chromatographic column. A sequence of n-hexane, toluene, and pyridine solvents were used to elute the SRC fractions. The unique feature of the method allows for further separation of the solvent-derived fractions into major compound classes without the need to evaporate solvents and redissolve fractions. This can be achieved by integrating the SRC-coated Fluoropak column with liquid chromatographic columns. Various SRC samples were investigated by using the procedure.

• OSTI ID: 5324537
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 54:3; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403* -- Coal & Coal Products-- Hydrogenation-- (-1987)
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600 -- Coal
Lignite
& Peat-- Properties & Composition
CHEMICAL REACTIONS
CHROMATOGRAPHY
FRACTIONATION
FUELS
HYDROGENATION
LIQUID COLUMN CHROMATOGRAPHY
ORGANIC SOLVENTS
SEPARATION PROCESSES
SOLVENT-REFINED COAL
SOLVENTS