Method of continuously carbonizing a mixture of primarily organi

Details Method of continuously carbonizing a mixture of primarily organi Method of continuously carbonizing a mixture of primarily organi

1988-12-28

1990-03-13

Woodard, Joye L.

Distillation: processes, thermolytic

Feed other than coal, oil shale or wood

44606, 201 33, 201 35, 201 44, 202117, C10B 5302, C10B 5714

Patent

active

049081047

ABSTRACT:
A method of continuously carbonizing a mixture of primarily organic waste material to a high British Thermal Unit char product wherein a stream of comminuted garbage material with a substantial organic material content is fed to one end of a mixer barrel, the material is compressed to form a barrel filling mass functioning as a first vapor block, and the work energy required to compress it and squeeze out entrapped air is used virtually exclusively to raise the temperature of the material adiabatically, air and any steam created are vented, the material downstream from the first vapor block is decompressed in a second vent region, the material is recompressed in the absence of air to form another vapor block, while exclusively utilizing the work energy required to compress it to raise the temperature of the material abiabatically to a volatile releasing temperature in the neighborhood of 400.degree. F. to 600.degree. F. and to carbonize the material, the volatiles are vented, and the product is discharged as a dry, friable particulate char.

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