초록 ▼

A fluid fuel mixture is formed of a suspension of a pulverized solid fuel and of at least one aqueous phase representing from 15 to 40 percent of the mixture before an optional incorporation of an additive. The mixture can comprise, as a supplement to particle-size fractions of the pulverized solid

A fluid fuel mixture is formed of a suspension of a pulverized solid fuel and of at least one aqueous phase representing from 15 to 40 percent of the mixture before an optional incorporation of an additive. The mixture can comprise, as a supplement to particle-size fractions of the pulverized solid fuel, or as a replacement for some of these fractions, additional particle-size fractions produced from heavy petroleum residues of a natural or synthetic origin which are solid at the temperature at which the invention is practiced. The fluid fuel mixture may be used, for example, in boilers, industrial furnaces, or gasification reactors.

대표청구항 ▼

A pumpable fluid fuel mixture, consisting essentially of a suspension of (a) from 70 to 5 weight percent of a pulverized solid fuel of particle size such that 80 percent of the particles are less than 80 microns, wherein said solid fuel is selected from the group consisting of natural coal, de-ashed

A pumpable fluid fuel mixture, consisting essentially of a suspension of (a) from 70 to 5 weight percent of a pulverized solid fuel of particle size such that 80 percent of the particles are less than 80 microns, wherein said solid fuel is selected from the group consisting of natural coal, de-ashed coal, coal-washery sludge and solid petroleum-based fuel, (b) from 5 to 70 weight percent of a pulverized petroleum residue of particle size up to 120 microns, wherein said petroleum residue is selected from the group consisting of asphaltenes, pitches from hydrocracking and catalytic cracking, residues of combustion, distillation, gasification or pyrolysis, pitches from deasphalting, and oxidized asphalts, and (c) from 15 to 40 weight percent of an aqueous phase such that the suspension has a solid proportion of from 60 to 85 weight percent.