Bimetallic promotion of cooperative hydrogen transfer and heteroatom removal in coal liquefaction: Quarterly technical progress report, December 1, 1988--February 28, 1989
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 constitutents. Basic to both the liquefaction of coal and the purification of coal 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. Accordingly, this study is exploring how such crucial hydrogen-transfer processes might be catalyzed by soluble, low-valent transition metal complexes and/or Lewis acids under moderate conditions of temperature and pressure. This quarter a detailed study of the Lewis-acid catalyzed hydrogen transfer between aromatic and hydroaromatic hydrocarbons was brought to completion. Hydrogen transfer was observed between such acceptors as ..cap alpha..-methylstyrene, mesitylethylene, 1,4-cyclohexadiene and 1,1- diphenylethylene, and such donors as 9,10-dihydroanthracene, 9,10- dihydrophenanthrene and 4,5-dihydropyrene. A parallel study of hydrogen transfer catalyzed by nickel (O) complexes has now been launched and positive results have also emerged. With an eye to future studies on a possible synergistic action of 1:1 Lewis acid- nickel combinations, we have begun the search for coordinative binding between the two components. 13 refs.
- Research Organization:
- State Univ. of New York, Binghamton (USA). Dept. of Chemistry
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG22-88PC88930
- OSTI ID:
- 6022653
- Report Number(s):
- DOE/PC/88930-T2; ON: DE89012585
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Bimetallic promotion of cooperative hydrogen transfer and heteroatom removal in coal liquefaction
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALUMINIUM CHLORIDES
CATALYTIC EFFECTS
COAL LIQUEFACTION
HYDROGEN TRANSFER
ALKENES
ANTHRACENE
CHEMICAL REACTION KINETICS
LEWIS ACIDS
ORGANIC COMPOUNDS
PROGRESS REPORT
ALUMINIUM COMPOUNDS
AROMATICS
CHLORIDES
CHLORINE COMPOUNDS
CONDENSED AROMATICS
DOCUMENT TYPES
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
LIQUEFACTION
REACTION KINETICS
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
400201 - Chemical & Physicochemical Properties