Reactions of phenoxy radicals under coal liquefaction conditions
Results are presented of model compound studies that address the rate parameters for hydrogen abstraction involving phenoxy radicals, and the products, pathways, and kinetics of phenoxy radical recombination, under coal liquefaction conditions. Thermolysis of selected mixtures of model compounds containing functionalities found in coal-related materials were conducted in a batch reactor at temperatures between 250 and 450/sup 0/C. The reaction products were analyzed by GC, HPLC, GCMS, and NMR, with emphasis on the identification of radical recombination products. Reactions were modeled by free radical mechanisms and rate parameters at liquefaction temperatures for hydrogen abstraction and recombination reactions involving phenoxy radicals were determined.
- Research Organization:
- California Inst. of Tech., Pasadena (USA)
- OSTI ID:
- 6436787
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUEFACTION
DATA
ELEMENTS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HIGH TEMPERATURE
HYDROGEN
INFORMATION
KINETICS
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
MAGNETIC RESONANCE
MASS SPECTROSCOPY
NMR SPECTRA
NONMETALS
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
PHENOXY RADICALS
RADICALS
REACTION KINETICS
RESONANCE
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
THERMOCHEMICAL PROCESSES