Cobalt stearate-aluminum alkyl catalyzed hydrogenation of Illinois No. 6 high volatile bituminous coal and model compounds
In a previous study, some preliminary results showed that a particular cobalt stearate-aluminum alkyl (Co(stearate)/sub 2/Et/sub 3/Al) (I) homogeneous transition metal complex related to Ziegler catalysts was a very effective hydrogenation promoter under mild temperature conditions (50-100/degree/C) and hydrogen pressures of from 500-1000 psi. Since most of the aromatic structures studied consisted of one, two and three ring units, the Ziegler catalysts used as hydrogenation catalysts should successfully add hydrogen to the aromatic rings in coal. Significantly, aromatic compounds such as naphthalene (II) and polynuclear nitrogen heteroaromatic compounds such as quinoline (III) are found to occur in coal and oil shale. The selective hydrogenation of these materials to form additional useful compounds i.e., naphthalene (II) to form 1,2,3,4-tetrahydroanaphthalene (IV) would provide an alternate use of a rather abundant natural resource. Recently, it has been reported that quinolines and isoquinoline can be selectively hydrogenated in the nitrogen-containing ring to form 1,2,3,4-tetrahydroquinoline (V) and N-formyl-1,2,3,4-tetrahydroisoquinoline by means of a carbon monoxide and water mixture in the presence of a catalytic amount of rhodium carbonyl cluster at 150/degree/C, 800 psi hydrogen and with stirring for 24 hr. We wish to report that similar hydrogenation of naphthalene (II), quinoline (III), 2-methylquinoline, and isoquinoline can be carried out using catalysts (I) under somewhat milder conditions but no hydrogenation occurs for nitro- or chloro substituted quinolines. We will also discuss the results of using catalyst (I) to hydrogenate Illinois no. 6 coal from the premium coal sample program.
- Research Organization:
- Univ. of Alabama, Tuscaloosa (USA)
- OSTI ID:
- 5933596
- Report Number(s):
- CONF-870802-
- Journal Information:
- Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States), Vol. 32:4; Conference: 194. American Chemical Society national meeting, New Orleans, LA, USA, 30 Aug - 4 Sep 1987
- Country of Publication:
- United States
- Language:
- English
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Catalytic hydrogenation of high volatile bituminous coal and various coal extracts: Final report for 1986/1987 SOMED Project
Catalytic hydrogenation of high volatility bituminous coal and various coal extracts: final report for 1986-1987. SOMED (School of Mines and Energy Development) project. Faculty research report
Related Subjects
ALKANES
CATALYTIC EFFECTS
ALUMINIUM COMPOUNDS
BITUMINOUS COAL
HYDROGENATION
COBALT COMPOUNDS
NAPHTHALENE
QUINOLINES
STEARATES
CATALYSIS
CATALYSTS
EXPERIMENTAL DATA
AROMATICS
AZAARENES
AZINES
BLACK COAL
CARBONACEOUS MATERIALS
CARBOXYLIC ACID SALTS
CHEMICAL REACTIONS
COAL
CONDENSED AROMATICS
DATA
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
TRANSITION ELEMENT COMPOUNDS
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction