Actions for Exploratory study on the direct use of natural gas in coal liquefaction

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Exploratory study on the direct use of natural gas in coal liquefaction

Author
Sundaram, M. S.
Published
United States : [publisher not identified], 1985
Springfield, Va.: National Technical Information Service, [approximately 1985]
Physical Description
microfiche : negative ; 11 x 15 cm

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Summary
Traditionally, molecular hydrogen has been used as a source of hydrogen atoms in hydrogenation/liquefaction of coal. Recently, other gas mixtures such as CO + H2, CO + H2O, CO + H2 + H2S have also been used in coal liquefaction experiments. These gases are produced during liquefaction, and in a real process they could be recycled. It is known that among the gaseous reaction products, the yield of light hydrocarbon gases (C/sub 1/ to C/sub 4/), in general, is greater than the combined yield of other gases containing hetero-atoms. Roughly, about half of the C/sub 1/ - C/sub 4/ light hydrocarbons is made up of methane alone, and the low rank coals have been reported to produce far greater amounts of methane and C2 - C/sub 4/ gases than the higher rank coals. Taking this and other economic factors into consideration, exploratory liquefaction experiments were performed in a tubing bomb reactor using an Illinois No. 6 hvAb coal with direct use of methane at temperatures from 400 to 450/sup 0/C. Hydrogen was used for comparison purposes. At 425/sup 0/C, the conversion to gases plus ethyl acetate soluble liquid products was 73.4% in CH/sub 4/ and 74.8% in H2. This indicates that methane (or natural gas) could be a potentially useful hydrogenation agent in direct coal liquefaction. 34 refs., 1 fig.
Report Numbers
DE85014188; BNL-36426
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC02-76CH00016
OSTI Identifier 5579544
Research organization: Brookhaven National Lab., Upton, NY (USA).
View MARC record | catkey: 47354901