Evaluation of coal/oil/water slurry (COWS) emulsions produced by an on-line cavitation emulsification process

Technical Report · Mon Oct 01 04:00:00 EDT 1979

DOI:https://doi.org/10.2172/5490251· OSTI ID:5490251

Taylor, D.; Parker, J.; Weinreich, B.

The major objective of this research effort was to evaluate the feasibility of producing a stable Coal/Oil/Water Slurry (COWS) emulsion utilizing cavitating emulsification technology. In order to meet this objective, the research program concentrated on the following areas of investigation: (1) The operational parameters of velocity, pressure, orifice size, intensity of cavitation, water droplet size, and percentage water added in order to produce a stable COWS emulsion were determined. (2) The experiments necessary to establish the emulsification parameters with respect to system power requirements were performed. (3) The research effort was limited to a 30 percent by weight coal emulsion. In addition to the original areas of concentration, the particle size distribution of the coal within the emulsion was also evaluated. While evaluating the distribution, an attempt was made to establish the size reduction of the coal particle as a result of exposure to the cavitating slurry. The data generated from the test results for evaluating these parameters can be used as design criteria or a prototype COWS emulsifier. COWS emulsions of 10 and 20 percent water were evaluated for particle size reduction.

• Research Organization: Daedalean Associates, Inc., Woodbine, MD (USA)
• OSTI ID: 5490251
• Report Number(s): FE-3162-T1
• Country of Publication: United States
• Language: English

Related Subjects

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014000 -- Coal
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025000 -- Petroleum-- Combustion
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200108* -- Fossil-Fueled Power Plants-- Fuels-- (1980-)
CARBONACEOUS MATERIALS
COAL
COLLOIDS
DATA
DATA FORMS
DEMAND
DIAGRAMS
DISPERSIONS
DISTRIBUTION
EMULSIFICATION
EMULSIONS
ENERGY DEMAND
ENERGY SOURCES
EXPERIMENTAL DATA
FEASIBILITY STUDIES
FOSSIL FUELS
FUEL OILS
FUEL SLURRIES
FUEL SUBSTITUTION
FUELS
HYDROGEN COMPOUNDS
INFORMATION
MIXTURES
NUMERICAL DATA
OILS
OPENINGS
ORGANIC COMPOUNDS
ORIFICES
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLE SIZE
PETROLEUM PRODUCTS
SIZE
SLURRIES
SPATIAL DISTRIBUTION
SUSPENSIONS
TABLES
VELOCITY
WATER