Mineral oils: processes and products – Phenolic or toxic oils
Patent
1978-08-02
1982-12-28
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
201 44, C10G 100
Patent
active
043660436
ABSTRACT:
Heat processing of pulverized brown coal is carried out in two stages. In a chamber for the first-stage heating, brown coal to be processed is heated to a temperature of thermal decomposition thereof with the formation of a solid matter and a vapor and gas mixture. The resultant vapor and gas mixture is removed for purification and condensed to obtain gaseous and liquid products. In a chamber for the second-stage heating, brown coal, in the form of solid matter, is heated to cause additional decomposition thereof, which results in the formation of a solid product and a vapor and gas mixture. The resultant vapor and gas mixture, together with a part of the resultant solid product, is fed through a return conduit into the chamber for the first-stage heating of the brown coal. To develop a draught which causes the solid product particles to move along the return conduit, the latter is provided with a means for feeding a gaseous heat carrier.
REFERENCES:
patent: 1954096 (1934-04-01), Pier et al.
patent: 2055029 (1936-09-01), Henny
patent: 2448223 (1948-08-01), Lantz
patent: 2582712 (1952-01-01), Howard
patent: 2654698 (1953-10-01), Phenney
Apter Danil M.
Chukhanov Zinovy F.
Chukhanov Zinovy Z.
Karasev Vadim A.
Lyashenko Ivan V.
Gantz Delbert E.
Wright William G.
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