Process to increase the effectiveness of bagasse as a source of

Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing

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44 1D, 44 10E, 44 10G, 44 15B, C10L 544, C10L 508

Patent

active

043636365

ABSTRACT:
The effectiveness of bagasse as a source of energy is increased by a flexible operation adapted to the power requirements, fuel storage requirements and other variables of a sugar mill operation. Part or all of a primary stream of bagasse from the sugar mill is dried from its initial moisture content, e.g. in the order of 50%, to a lower moisture content, e.g. in the order of 35%, using a portion of the hot flue gases from the boilers which are used to supply power for the sugar mill operation. The resulting drier material is separated to provide an oversize particle stream which may be sent directly to the boiler for burning, to storage in the bagasse house, or to a secondary drying operation, and a secondary stream of fine particle size bagasse components which are most suitable for further process and densification. This secondary stream, with optional addition of oversize particles from the primary drying operation, is then dried in contact with another portion of hot flue gases to a moisture content suitable for densification, about 6-12% where a pellet mill is employed, and is further subjected to particle size selection, if necessary, and then subjected to densification in a pellet mill or other suitable equipment. The densified material is then sent to storage, returned to the boilers for part or all of the fuel requirement or transported to other potential users.

REFERENCES:
patent: 1258888 (1918-03-01), Geveke
patent: 1258889 (1918-03-01), Geveke
patent: 3013880 (1961-12-01), King
patent: 3436312 (1969-04-01), Lednor
patent: 3946660 (1976-03-01), Kuhtreiber
patent: 4015951 (1977-04-01), Gunnerman
patent: 4211740 (1980-07-01), Dean et al.
patent: 4229183 (1981-10-01), Eneroth et al.
patent: 4236897 (1980-12-01), Johnston
patent: 4308033 (1981-12-01), Gunnerman
"Pelletizing Bagasse for Fuel", P. E. Bouvet and Norland L. C. Suzor, SUGAR AZUCAR, Aug. 1980.

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