Bimetallic promotion of cooperative hydrogen transfer and heteroatom removal in coal liquefaction
The ultimate objective of this research is to uncover new catalytic processes for the liquefaction of coal and for upgrading coal-derived fuels by removing undesirable organosulfur, organonitrogen and organooxygen constituents. Basic to both the liquefaction of coal and the purification of coals liquids is the transfer of hydrogen from such sources as dihydrogen, metal hydrides or partially reduced aromatic hydrocarbons to the extensive aromatic rings in coal itself or to aromatic sulfides, amines or ethers. This study is exploring how hydrogen-transfer processes might be catalyzed by soluble, low-valent trasition metal complexes and/or Lewis acid under moderate conditions of temperature and pressure. This quarter the following aspects of our research program received attention: (1) inauguration of studies aimed at assessing the synergistic effect of nickel(0) complexes, combined with organoaluminum Lewis acids, in promoting hydrogen transfer and heteroatom removal in organic substrates; (2) further investigation of the effect of ligands in activating nickel(0) complexes for the rupture of carbon-heteroatom linkages (C-E, where E = boron, nitrogen, sulfur, halogen and oxygen); and (3) attempts to detect, trap and synthesize independently the nickel intermediates responsible for hydrogen transfer and heteroatom removal in the foregoing processes.
- Research Organization:
- State Univ. of New York, Binghamton, NY (USA)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- FG22-88PC88930
- OSTI ID:
- 5725459
- Report Number(s):
- DOE/PC/88930-T10; ON: DE91014643
- Country of Publication:
- United States
- Language:
- English
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Bimetallic promotion of cooperative hydrogen transfer and heteroatom removal in coal liquefaction
Bimetallic promotion of cooperative hydrogen transfer and heteroatom removal in coal liquefaction
Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
COMPLEXES
DIMERIZATION
DOCUMENT TYPES
FLUIDS
HYDROGEN COMPOUNDS
HYDROGEN TRANSFER
INORGANIC ACIDS
KETONES
LEWIS ACIDS
LIQUEFACTION
LIQUIDS
NICKEL COMPLEXES
NITRILES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POLYMERIZATION
PROGRESS REPORT
REMOVAL
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPLEXES