Studies of coupled chemical and catalytic coal conversion methods

Technical Report · Sun Jan 01 04:00:00 EST 1989

DOI:https://doi.org/10.2172/7081138· OSTI ID:7081138

Stock, L M

A new base catalyzed C-alkylation reaction that employs a mixture of n-butyllithium and potassium t-butoxide in refluxing heptane to produce coal anions that are subsequently treated with n-alkyl halides at 0{degree}C has been developed. Almost quantitative pyridine solubilization was achieved by C-octylation of a Lower Kittanning coal, PSOC 1197. C-Octylation was less successful for the solubilization of bituminous Illinois No. 6 coal, APCSP 3, and subbituminous Wyodak coal, APCSP 2, which gave 35 and 33% soluble material, respectively. Their O-methyl derivatives yielded 43 and 20% soluble material in the same reaction. The observations are in accord with the concept of Ouchi and his associates that higher rank coals, although more aromatic in character, have a lower degree of polymerization than low rank coals. Relatively mild chemical reactions, such as Calkylation, that lead to modest changes in molecular dimensions, can disrupt intermolecular forces and accomplish solubilization.

• Research Organization: Chicago Univ., IL (United States). Dept. of Chemistry
• Sponsoring Organization: DOE; LINFOUN; USDOE, Washington, DC (United States); Link Foundation (United States)
• DOE Contract Number: AC22-87PC79938
• OSTI ID: 7081138
• Report Number(s): DOE/PC/79938-T11; ON: DE92040284
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALKALI METAL COMPOUNDS
ALKYLATION
AMIDES
AZINES
CARBON 13
CARBON ISOTOPES
CARBONACEOUS MATERIALS
CHEMICAL BONDS
CHEMICAL REACTIONS
CHEMICAL SHIFT
CLEAVAGE
COAL
COAL LIQUEFACTION
CRYSTAL STRUCTURE
DATA
DOCUMENT TYPES
ENERGY SOURCES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
INFORMATION
ISOTOPES
LIGHT NUCLEI
LIQUEFACTION
MAGNETIC RESONANCE
MATERIALS
MICROSTRUCTURE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PROGRESS REPORT
PYRIDINE
PYRIDINES
RESONANCE
SODIUM COMPOUNDS
STABLE ISOTOPES
THERMOCHEMICAL PROCESSES