Reverse phase liquid chromatography of coal liquefaction solvents
Results are presented on the reverse phase liquid chromatography (RPLC) separation of Wilsonville SRC-I solvents. These data are quantified and the relative amounts of the eluted fractions provide an explanation of the relative values of these solvents as liquefaction media. Results are also presented on the RPLC separation of H-Coal recycle distillates. It was found that, for the RPLC elution program used, a strong linear correlation exists between the retention time of the component and a structural vector consisting of ten parameters which describe that component's molecular structure. This allows one to predict the retention time of a component of interest for qualitative identification, and can also be used to support the identification of a component observed to elute at a given retention time. Reverse phase liquid chromatography is a promising method for analytical or preparative separation of coal derived distillates. The high resolution and selectivity of commercially available ODS columns allow specific component classes (e.g., polars, aromatics, saturates) to be separated without cross contamination. A wide variety of elution programs is readily available. The inertness of the column substrate should minimize problems of irreversible adsorption and chemical alteration of sample components on the column. The rather unexpected result that retention time can be accurately predicted on the basis of a simple structural representation of a component opens up interesting possibilities for refinement and application of the method.
- Research Organization:
- Conoco Coal Development Co., Library, PA
- OSTI ID:
- 6521214
- Report Number(s):
- CONF-810308-(Vol.4)
- Journal Information:
- Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States) Vol. 26:2; ISSN ACFPA
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
AROMATICS
CHROMATOGRAPHY
COAL LIQUEFACTION
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FRACTIONATION
FUELS
GAS CHROMATOGRAPHY
H-COAL PROCESS
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTROSCOPY
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
POLAR COMPOUNDS
SEPARATION PROCESSES
SOLVENTS
SPECTROSCOPY
SRC PROCESS
THERMOCHEMICAL PROCESSES