Fuel extension by dispersion of ''clean'' coal in oil. First quarterly report, October 1977--January 1978. [Molecular grafting]

Technical Report · Sun Jan 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6724759· OSTI ID:6724759

Burgess, L. E.

Initial experimental work was performed in order to select candidate materials. Hydrous chemical grafting beneficiation will start after the selection of an aqueous molecular grafting solution. Early experimental results show that there is substantial improvement in oil-coal dispersion stability from a chemical grafting reaction of Pittsburgh seam coal with cracker gasoline monomers. This experiment must be confirmed by repeating with the same batch of cracker gasoline and another similar material. The conclusions that can be drawn at this point are as follows: Monomers for the coal chemical grafting reaction are available in sufficient quantity at the price of $.05 to .08 per pound. Slurry reactions of coal without graft initiation (GI) show limited improvement in dispersion stability due to surfactant effects. Reflux reactions with GI, using styrene monomer, show considerable improvement over reactions without GI on dispersion stability. Reflux reactions on Pittsburgh coal using cracker gasoline show substantial improvements in dispersion stability. From this initial work, there is evidence that chemical grafting may be used to improve the oil dispersion stability of coal. Much more work is required to confirm this observation.

• Research Organization: Gulf and Western Advanced Development and Engineering Center, Swarthmore, PA (USA)
• OSTI ID: 6724759
• Report Number(s): FE-2694-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
02 PETROLEUM
025000 -- Petroleum-- Combustion
AROMATICS
CARBONACEOUS MATERIALS
COAL
DISPERSIONS
EMULSIFICATION
ENERGY SOURCES
FOSSIL FUELS
FUEL OILS
FUEL SLURRIES
FUELS
HYDROCARBONS
MIXTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
POLYMERS
SLURRIES
STABILITY
STYRENE
SURFACTANTS
SUSPENSIONS