Coal composition

Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing

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44 1C, C10L 132, C10L 908

Patent

active

043773923

ABSTRACT:
A shattered hydrocarbonaceous product comprising a mixture of discrete comminuted hydrocarbonaceous particles having a volumetric mean particle size equivalent to less than about 5 microns in diameter separate from or in admixture with discrete inorganic and mineral particles having a mean particle size substantially the same as in the unshattered original solid is disclosed. The shattered product is produced by the explosive comminution of a slurry of fluid permeable hydrocarbonaceous solid which was heated and pressurized to supercritical conditions and then permitted to suddenly expand. The product hydrocarbonaceous fraction is substantially scissioned from the mineral fraction and has a lower density, greater solvent solubility and different reactivity to oxygen than does the feed solid. This hydrocarbonaceous fraction also includes a subfraction of particles having a particle size, by volume distribution, of less than about 2 microns in diameter which contain substantially no sulfur compounds. In addition, the product hydrocarbonaceous fraction has a solubility in methanol at least about twice that of a product produced by explosive comminution at sub-critical conditions.

REFERENCES:
patent: 2560807 (1951-07-01), Lobo
patent: 2568400 (1951-09-01), Kearby
patent: 3660054 (1972-05-01), Rieve
patent: 3756791 (1973-09-01), Mancke
patent: 3897010 (1975-07-01), Weishaupt et al.
patent: 3973733 (1976-08-01), Switzer
patent: 4030893 (1977-06-01), Keller
patent: 4192651 (1980-03-01), Keller
R. A. Glenn et al., "A Study of Ultrafine Coal Pulverization and its Application", pp. 20, 90, (Oct. 1963), U.S. Dept. of Commerce, Springfield, VA.
Shao Lee Soo et al., "Final Report and Evaluation of the ILOK-4-Micron Coal Grinding Process," Univ. of Illinois, Urbana-Champaign, Ill., (Dec. 1976).

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