Method for drying solid carbonaceous materials

Details Method for drying solid carbonaceous materials Method for drying solid carbonaceous materials

1978-08-29

1980-07-15

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 12, 159 47R, F26B 300

Patent

active

042121124

ABSTRACT:
The material to be dried, such as coal, is mixed with an aromatic liquid, such as benzene, which removes a portion of the available water from the coal. The mixture of water and benzene, called an azeotrope, has a minimum boiling point relative to the surrounding liquid medium and is easily removed from the total mixture as a vapor. The condensed vapor forms two phases which are separated, furnishing a water stream for use elsewhere in the overall coal processing system and a benzene steam for recycle use. The dried coal/benzene slurry is further processed.

REFERENCES:
patent: 2138048 (1938-11-01), Vesce
patent: 2610115 (1952-09-01), Lykken
patent: 3520067 (1970-07-01), Winegartner
patent: 3953927 (1976-05-01), Hoffert
patent: 3982325 (1976-09-01), Sigl et al.
patent: 3992784 (1976-11-01), Verschuur et al.
patent: 4014104 (1977-03-01), Murphy

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