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), Vol. 26:2; Conference: American Chemical Society symposium on the chemistry of engine combustion deposits, Atlanta, GA, USA, 29 Mar 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
01 COAL, LIGNITE, AND PEAT
02 PETROLEUM
ORGANIC SOLVENTS
LIQUID COLUMN CHROMATOGRAPHY
PETROLEUM DISTILLATES
AROMATICS
COAL LIQUEFACTION
FRACTIONATION
GAS CHROMATOGRAPHY
H-COAL PROCESS
MASS SPECTROSCOPY
POLAR COMPOUNDS
SRC PROCESS
CHROMATOGRAPHY
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
LIQUEFACTION
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
SEPARATION PROCESSES
SOLVENTS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
400105* - Separation Procedures
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
023000 - Petroleum- Properties & Composition