Thermal dewatering of brown coal

Details Thermal dewatering of brown coal Thermal dewatering of brown coal

1975-06-11

1976-11-23

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 15, F26B 700

Patent

active

039927849

ABSTRACT:
The invention relates to a process for the upgrading of solid material containing bound water and free or chemically bound carbon, in particular brown coal, which process involves a heat treatment at a temperature of at least 150.degree. C and at a pressure that is higher than the vapor pressure of water at that temperature.

REFERENCES:
patent: 1783757 (1930-12-01), von Staden et al.
patent: 1960917 (1934-05-01), Nagelvoort et al.
patent: 3896557 (1975-07-01), Seitzer et al.

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