Distillation: processes – thermolytic – With comminuting – Prior to charging to carbonizing zone
Patent
1977-08-01
1979-02-13
Wolk, Morris O.
Distillation: processes, thermolytic
With comminuting
Prior to charging to carbonizing zone
201 29, 201 31, 201 37, 201 43, 201 44, 201 45, 252421, 252445, 423449, 423460, C01B 3110, C10B 4724, C10B 5702
Patent
active
041394160
ABSTRACT:
A carbonaceous material with high characteristics of surface area and activity is produced in a continuous process by heating and drying ground pit coal at 200 to 300.degree. C. for 15 to 120 minutes in air, and then heating in two further stages in fluidized bed reactors. The first of these further stages is 400 to 600.degree. C. for 10 to 60 minutes while the second is 800 to 1100.degree. C. for 10 to 60 minutes. Tar is condensed from the offgases of the first further stage and the residual gas is divided and 10 to 95% recycled to the first further stage. Similarly, 10 to 95% of the off-gases from the second further stage are recycled.
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Colletta Angelo
Palumbo Luigi
Centro Sperimentale Metallurgico S.p.A.
Marcus Michael S.
Wolk Morris O.
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