Abstract
Pyrolysis of agricultural residue was experimentally assessed as a fuel production process for farm applications. A rotary kiln (3.4 m by 0.165 m I.D.) was used due to its ease of operation, commercial availability, low operating costs and ease of start-up and shutdown. Ground oat straw and corn stover at less than 10% moisture were pyrolyzed in an indirectly fired continuous-flow rotary kiln located at the University of Sherbrooke. The principle products were char and gas; less than 1% of the feed mass was converted to tar. Calorific values were about 17 MJ/kg for the feed, 26 MJ/kg for the char, and 12 MJ/m/sup 3/ for the gas. Calculations indicate tha the thermal efficiency of a self-sustaining process would be around 65%.
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