Abstract A liquid fuel composition that has as its sole consituents, particulate coal and water. The particulate coal and water are mixed to form a homogeneous slurry that can be handled, stored, pumped and burned in substantially the same manner as conventional liquid fuels. The coal and water in the slurry have the relative proportions of between 54 and 69 per cent by volume coal and 46 to 31 per cent by volume water. The coal particles have a size distribution so that substantially all of the particles pass through a 4 mesh Tyler Standard Screen and between 18 and 33 per cent by weight pass through a 325 mesh Tyler Standard Screen. Less than 60 weight per cent of the coal particles have a size that remains on a 28 mesh Tyler Standard Screen and the remaining coal particles have a size that passes through a 28 mesh Tyler Standard Screen and remains on a 325 mesh Tyler Standard Screen.
Inventors
👤 J Clancey
👤 J Phinney
👤 T Regan
👤 E Wasp
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-26 04:54
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/326
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A homogeneous composition of matter suitable for use as a liquid fuel consisting essentially of particulate coal and water in the relative proportions of 57 to 65 per cent by volume of coal and 43 to 35 per cent by volume of water, said particulate coal having a size distribution substantially as follows: 0 per cent by weight on 4 mesh Tyler Standard screen, 22 to 28 per cent by weight less than 325 mesh, 20 to 30 per cent by weight between 4 and 28 mesh, and the balance in the size range of 28 to 325 mesh.
Claim 2
Dependent Claim
102 words
A homogeneous composition of matter suitable for use as a liquid fuel consisting essentially of particulate coal having a specific gravity of about 1.35 and water in the relative proportions of about 68 per cent by weight of said coal and about 32 per cent by weight of water, said particulate coal having a size distribution substantially as follows: 0 per cent on a 4 mesh Tyler Standard screen, about 28 per cent by weight less than 325 mesh, about 25 per cent by weight between 4 and 28 mesh, and the balance in the size range of 28 to 325 mesh.
Claim 3
Dependent Claim
58 words
A composition of matter suitable for use as a liquid fuel consisting essentially of particulate coal having a specific gravity of about 1.35 and water in the relative proportions of about 68 per cent by weight of said coal and about 32 per cent by weight of water, said particulate coal having a size distribution substantially as follows: