Process for making a carbonaceous slurry
A process is described for preparing a carbonaceous slurry, comprising the steps of: (a) providing a mixture of carbonaceous solid material and liquid, wherein: 1. the mixture contains at least about 60 weight percent of particles of carbonaceous solid material, no more than about 40 weight percent of liquid, and from about 0.01 to about 4.0 weight percent of liquid, and from about 0.01 to about 4.0 weight percent (by weight of dry carbonaceous material in the mixture) of dispersing agent, 2. at least about 5 weight percent of the carbonaceous solid material in the mixture are of colloidal size, being less than 3.0 microns in size, 3. the carbonaceous particles in the mixture have a particle size range of about 300 x 0.1 microns, and 4. the Brookfield viscosity of the mixture, when measured at 60 r.p.m., ambient temperature, and ambient pressure, is less than about 4,000 centipoise; and (b) mixing the mixture of paragraph (a).
- Assignee:
- Alfred University Research Foundation, Inc., NY
- Patent Number(s):
- US 4650496
- OSTI ID:
- 6635649
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010300* -- Coal
Lignite
& Peat-- Preparation-- (1987-)
ADDITIVES
AMBIENT TEMPERATURE
CHEMICAL PREPARATION
COAL FINES
COAL PREPARATION
COLLOIDS
DISPERSIONS
FLUIDS
FUEL SLURRIES
FUELS
LIQUIDS
MIXING
MIXTURES
PARTICLE SIZE
PRESSURE MEASUREMENT
QUANTITY RATIO
SIZE
SLURRIES
SURFACTANTS
SUSPENSIONS
SYNTHESIS
VISCOSITY