Oil-compatible coal/water mixtures

Details Oil-compatible coal/water mixtures Oil-compatible coal/water mixtures

1984-03-02

1987-12-15

Dixon, Jr., William R.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 77, 252351, C10L 132

Patent

active

047130865

ABSTRACT:
A method is provided for inhibiting an increase in viscosity of coal/water slurries when such slurries are caused to contact petroleum oil during fuel changeover in power generation systems, the method comprising maintaining in the coal/water slurry during transitional contact with petroleum oil an effective amount of an agglomeration-inhibiting agent selected from the group consisting of nonionic and anionic dispersing agents sufficient to inhibit the formation of coal/oil agglomerates and provide a flowable mixture during transitional contact having a Brookfield viscosity of below about 50,000 cP.

REFERENCES:
patent: 3210168 (1965-10-01), Morway
patent: 4153421 (1979-05-01), Marlin
patent: 4195975 (1980-04-01), Hamuro et al.
patent: 4203729 (1980-05-01), Ishizaki et al.
patent: 4251229 (1981-02-01), Naka et al.
patent: 4282006 (1981-08-01), Funk
patent: 4358293 (1982-11-01), Mark
"Coal: Diesel Fuel of the Future?", Power, Mar. 1982, vol. 125, pp. 43-44.
Excerpts from Fifth International Symposium on Coal Slurry Combustion & Techology, Apr. 25-27, 1983, Tampa, Fla., vol. 1 & 2, pp. (I-IV, 2-4 and 7-24).

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