Mineral oils: processes and products – Refining – Water removal
Patent
1991-06-06
1992-06-09
Myers, Helane
Mineral oils: processes and products
Refining
Water removal
210708, 208428, 208311, 208308, 208 87, 208 88, 208 97, 208 3, 208187, C10G 2100
Patent
active
051204282
ABSTRACT:
A process is described for removing mineral or ash constituents from heavy hydrocarbon residues, such as those resulting from coal-oil coprocessing, residue hydrocracking or coal liquifaction. The process comprises the steps of: (a) intimately mixing the ash-containing heavy hydrocarbon oil residue with a surfactant and a pH-conditioned aqueous solution under high shear mixing conditions to disperse the ash-containing residue in the aqueous phase thereby creating a fine oil-in-water emulsion, (b) adding a strong oxidizing agent to the emulsion to thereby break the emulsion and release the ash into the aqueous phase and (c) separating the ash-containing aqueous phase from the oil phase. The HLB method for characterizing the emulsion forming activity of a surface active material is described in M. J. Rosen, Surfactants and Interfacial Phenomena, John Wiley & Sons, New York (1989), incorporated herein by reference.
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Cooke Norman E.
Halevy Marc
Ikura Michio
Weber Martin E.
Energy Mines & Resources - Canada
Myers Helane
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