NANO-DISPERSIONS OF COAL IN WATER AS THE BASIS OF FUEL RELATED TECHNOLOGIES AND METHODS OF MAKING SAME

Colloidal coal-in-water slurries having nano-particles of coal creating a pseudo-fluid. The colloidal coal-in-water slurry generally includes from about fifty to about seventy two weight percent of coal, with about 20 to about 80 percent of the coal having a particle size of about one micron or less...

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Hauptverfasser: Briceno Maria, Gomez Cebers, Asa Takeshi, Nunez Gustavo A, Joseph Daniel D
Format: Patent
Sprache:eng
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Zusammenfassung:Colloidal coal-in-water slurries having nano-particles of coal creating a pseudo-fluid. The colloidal coal-in-water slurry generally includes from about fifty to about seventy two weight percent of coal, with about 20 to about 80 percent of the coal having a particle size of about one micron or less with a mode particle size of about 250 nanometers. The coal-in-water slurry can also include a surfactant system containing one surfactant or mixtures of two or more surfactants, or mixtures of one or more surfactants and an inorganic or organic salt. The coal-in-water slurry can be used in low NOx burner applications as the main fuel and/or the reburn fuel, in gasification processes as the input fuel either alone, or in combination with organic materials, in gas turbine applications, and in diesel engine applications.