Distillation: processes – thermolytic – Applying electrical energy directly to material
Patent
1983-05-03
1984-09-18
Garris, Bradley
Distillation: processes, thermolytic
Applying electrical energy directly to material
48 65, 201 25, 201 38, C10B 4900, C10B 4918, C10B 5300, C10J 318
Patent
active
044722451
ABSTRACT:
Materials which become carbonized at high temperatures, such as wood, cellulose, household refuse, used tires, plastics, tar sand, oil shale, and the like, are subjected to thermal treatment, i.e., pyrolysis or gasification, in an electric shaft furnace having top and bottom electrodes. The material is charged into the furnace at the top and continuously moved downward through the furnace so slowly that as a result of heat transfer from the hotter parts of the furnace, it is carbonized to an extent which renders it electrically conductive by the time it comes in contact with those parts of the electrodes by means of which electric current is conducted through the material. The material charged at the top of the furnace can be caused to move downward by withdrawing suitable amounts of solid material from the bottom of the furnace, for example, or by gasifying the material with steam.
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Hackh's, "Chemical Dictionary", Aug. 1976, p. 133, 4th Edition.
Garris Bradley
Ing. A. Maurer Societe Anonyme
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