C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
48/35, 196/6.1
C10G 1/02 (2006.01) C10J 3/46 (2006.01)
Patent
CA 1117049
Abstract of the Disclosure According to the invention pulverized brown coal is processed by heating brown coal in two stages. During the first stage brown coal being processed is heated by a gase- ous heat carrier to a temperature at which thermal decomposi- tion of the brown coal begine. During the second stage the brown coal being processed is heated by the gaseous heat carrier to a temperature at which an intensive thermal decom- position of the brown coal takes place. The stream of the gaseous heat carrier delivered at the second stage of heating is fed with air oxygen and with low-grade products, such as heavy tars and pyrogenic water being sprayed into the gaseous heat carrier. Air oxygen being fed into the gaseous heat carrier as well as heavy tars and pyrogenic water being sprayed into the same raise the combustion temperature of the solid product being obtained and prevent the necessity of purifying the pyrogenic water before disposal thereof into pools. Power consumption required for carrying out the proposed method is approximately the same as that in conventional methods.
308624
Chukhanov Zinovy F.
Chukhanov Zinovy Z.
Fedorov Nikolai A.
Karasev Vadim A.
Nikolaev Anatoly M.
Gosudarstvenny Nauchno - Issledovatelsky Energetichesky Institut
Swabey Ogilvy Renault
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