Mineral oils: processes and products – Refining – Water removal
Patent
1986-02-18
1987-03-10
Doll, John
Mineral oils: processes and products
Refining
Water removal
208177, 208426, 44 23, 44 24, 44 1R, 44 1SR, 210708, 264117, C10G 100, B01D 1704
Patent
active
046489622
ABSTRACT:
Persistent chemisorption bonds of clay solids in clay-containing heavy oil and water emulsions, from oil sands, heavy oil or conventional oil wells, are broken down by mixing the emulsion with an aqueous mixture of coal particles so that the mixture has a suspension density in the range 1 to 50 weight % solids. The coal particles have a particle size in the range 5 to 100 .mu.m so that occluded hydrophilic, inorganic solids are separable from a substantial portion of the hydrophobic, carbonaceous substances of the coal. The mixing of the emulsion with the aqueous suspension of coal particles is continued until agglomerates are formed comprising essentially carbonaceous components of the coal and the heavy oil thereby breaking down the chemisorption bonds by interdependantly dissociating carbonaceous components of the coal and heavy oil from the clay solids and other hydrophilic, inorganic solids and water from the coal and heavy oil. The agglomerates are separated from the dissociated clay solids and other hydrophilic, inorganic components and then volatile components of the agglomerates may be thermally or otherwise extracted from them.
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Capes Charles E.
Coleman Richard D.
Puddington Ira E.
Thayer William L.
Canadian Patents and Development Limited
Doll John
Myers Helane
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