Method and apparatus for transporting coal as a coal/liquid carb

Details Method and apparatus for transporting coal as a coal/liquid carb Method and apparatus for transporting coal as a coal/liquid carb

1978-04-14

1980-06-10

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

137 13, 406154, 406197, 423437, F17C 702

Patent

active

042066107

ABSTRACT:
Method and apparatus for transporting coal in finely divided form in a coal/liquid slurry. Liquid carbon dioxide, which can be formed by burning coal at the coal source point and liquefying the resulting gaseous carbon dioxide, serves as the slurry liquid. The slurry is pumped through a slurry pipeline to the coal use point under conditions of temperature and pressure to maintain the carbon dioxide in liquefied form. Subsequent to deslurrying, the coal-free carbon dioxide can be liquefied and returned through a liquid pipeline to the coal source point for reuse. The use of liquid carbon dioxide as a slurry medium is also applicable to transporting other finely divided solids such as ores and the like.

REFERENCES:
patent: 2543170 (1951-02-01), Hill
patent: 3719397 (1973-03-01), Wasp
patent: 3730201 (1973-05-01), Lefever
patent: 3810365 (1974-05-01), Hampton
patent: 3870063 (1975-03-01), Hayward
patent: 3933001 (1976-01-01), Muska
patent: 3976442 (1976-08-01), Paull et al.
patent: 3976443 (1976-08-01), Paull et al.

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