Effect of electroreduction pretreatment in aqueous media on hydropyrolysis of a bituminous coal
Conference
·
· American Chemical Society, Division of Petroleum Chemistry, Preprints; (United States)
OSTI ID:7196068
- Univ. Libre de Bruxelles, (Belgium)
Electroreduction of coal is studied in aqueous tetrabutylammonium hydroxide (TBAOH) solution and tetrabutylammonium tetrafluoroborate (TBABF{sub 4})-THF-H{sub 2}O solution by using platinum as anode and Hg pool as cathode. The electrolysis in aqueous TBAOH solution seems to have little effect on the following HyPy although the pyridine extractable yield of reduced coal increases. In an undivided cell the re-oxidation of the reduced coal occurs. Cathodic reduction in TBABF{sub 4}-THF-H{sub 2}O solution gives a pronounced effect on HyPy. Higher conversion (60.9%) and total oil yield (50.6%) (THF solube + oil formed in HyPy) are obtained in a divided cell as compared with 42.1% and 28.4% for untreated coal, respectively. The electroreduction pretreatment of coal enhances the rate of oil formation and the oil yield in HyPy of the reduced coal, indicating that the reduced coal can be depolymerized more easily due to the solvolysis and hydrogenation.
- OSTI ID:
- 7196068
- Report Number(s):
- CONF-900802--
- Conference Information:
- Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (United States) Journal Volume: 35:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010409* -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
AMMONIUM COMPOUNDS
AMMONIUM HYDROXIDES
AZINES
BITUMINOUS COAL
BLACK COAL
BORATES
BORON COMPOUNDS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL EXTRACTS
DECOMPOSITION
DEPOLYMERIZATION
ELECTROLYSIS
ELEMENTS
ENERGY SOURCES
EXTRACTION
FLUORATES
FLUORINE COMPOUNDS
FOSSIL FUELS
FUELS
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGENATION
HYDROXIDES
LYSIS
MATERIALS
MERCURY
METALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
PYRIDINE
PYRIDINES
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
010409* -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
AMMONIUM COMPOUNDS
AMMONIUM HYDROXIDES
AZINES
BITUMINOUS COAL
BLACK COAL
BORATES
BORON COMPOUNDS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL EXTRACTS
DECOMPOSITION
DEPOLYMERIZATION
ELECTROLYSIS
ELEMENTS
ENERGY SOURCES
EXTRACTION
FLUORATES
FLUORINE COMPOUNDS
FOSSIL FUELS
FUELS
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGENATION
HYDROXIDES
LYSIS
MATERIALS
MERCURY
METALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
PYRIDINE
PYRIDINES
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS