Industrial process using a forced-exhaust metal furnace and mechanisms developed for simultaneously producing coal, fuel gas, pyroligneous extract and tar
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United States of America Patent
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Oct 22, 2019
Grant Date -
Aug 3, 2017
app pub date -
May 7, 2015
filing date -
May 9, 2014
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Abstract
A sealed portable industrial furnace for optimizing the concurrent production of charcoal, fuel gas, pyroligneous extract and tar includes an upright metallic body for receiving wood or biomass. A cover is mounted to the upper end of the upright body and the pressure relief system is incorporated into the cover. A perforated base structure is attached to the lower end of the upright body, and a discharge valve is incorporated into the base structure and is closed during production of the charcoal and then is opened to unload the charcoal produced. A support skirt encircles the base structure to support the body in upright position and defines an expansion chamber for the accumulation of combustion gases generated by the furnace. A series of inlet openings are located along the height of the upright body through which combustion air may be introduced under the action of a control system which receives temperate data from temperature monitoring devices located along the height of the body.
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