The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 1986
Filed:
Oct. 01, 1984
Charles E Capes, Ottawa, CA;
Adam J Bennett, Ottawa, CA;
Richard D Coleman, Orleans, CA;
William L Thayer, Ottawa, CA;
Canadian Patents and Development, Ltd., Ontario, CA;
Abstract
An aqueous phase continuous, fuel slurry is claimed, and its method of production from agglomerates consisting essentially of carbonaceous particles, agglomerating oil and residual water. The slurry may be formed by thoroughly mixing with agglomerates an agglomerate dispersing and coal/oil/water system interfacial tension reducing agent with the agglomerates so that the agglomerates are broken down and an aqueous phase continuous fuel slurry is formed containing residual, oil produced flocs from the agglomerates and having an oil content of the fuel slurry no greater than 10 weight % of the solids content of the fuel slurry. The solids content of the fuel slurry is in the range of the order of 50 weight % and of the order of 80 weight % of the total weight of the fuel slurry, and is preferably in the range of the order of 65 weight % to of the order of 70 weight %. Examples of interfacial tension reducing agents are ethanol, methanol, glycol, butyl alcohol, isopropyl alcohol, lauryl sulfonates, alkyl sulfonates, lignosulfonates, sodium oleate, nonyl-phenolethoxylates, and soaps. With fuel slurries according to the invention, there may be very slow sedimentary consolidation of the carbonaceous particles, but when it does occur there is no difficulty in re-mixing the constituents into a slurry because the residual aggregates or flocs cause the carbonaceous particles to pack down to a porous bed.