Supercritical fluid chromatography/supersonic jet spectroscopy: Final report, August 1, 1983-August 31, 1986
Capillary supercritical fluid chromatography (SFC) can be used to migrate and elute high-molecular-weight compounds that are present in coal-derived products, but the complexities of these mixtures surpass the resolving capabilities of this high resolution technique. In this study, the problem of sample complexity was addressed in two ways: (a) supercritical fluid sample prefractionation, and (b) capillary SFC with selective detection. For prefractionation, a supercritical fluid extraction/fractionation system was constructed and evaluated. A number of complex coal- and petroleum-derived materials were fractionated according to the number of aromatic rings using columns packed with an NH/sub 2/-modified stationary phase bonded on silica particles, and the group type separation of aliphatics, olefins, and aromatics was accomplished with a combination of silica and silver nitrate-modified columns.
- Research Organization:
- Brigham Young Univ., Provo, UT (USA). Dept. of Chemistry
- DOE Contract Number:
- FG22-83PC60807
- OSTI ID:
- 6917702
- Report Number(s):
- DOE/PC/60807-T11; ON: DE87004004
- Country of Publication:
- United States
- Language:
- English
Similar Records
Supercritical fluid chromatography/supersonic jet spectroscopy. Progress report, February 1, 1985-April 30, 1985
Supercritical fluid chromatography/supersonic jet spectroscopy. Progress report, August 1-October 31, 1985
Related Subjects
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
ALKENES
AROMATICS
CHROMATOGRAPHY
COAL LIQUEFACTION
CONSTRUCTION
EXTRACTION
HYDROCARBONS
LIQUEFACTION
ORGANIC COMPOUNDS
PERFORMANCE
SEPARATION PROCESSES
SOLVENT EXTRACTION
SUPERCRITICAL FLUID CHROMATOGRAPHY
SUPERCRITICAL GAS EXTRACTION
THERMOCHEMICAL PROCESSES