Process and apparatus for chemical conversion of materials...

Details Process and apparatus for chemical conversion of materials... Process and apparatus for chemical conversion of materials...

C - Chemistry, Metallurgy

13

K

260/232, 23/382,

C13K 1/02 (2006.01)

Patent

CA 1190923

ABSTRACT OF THE DISCLOSURE A process and apparatus for the conversion of waste cellulose to glucose wherein waste cellulose is acid hydrolyzed includes continuously feeding waste cellulose into an inlet port with a twin screw extruder, continuously reacting the cellulose with water in the presence of an acid catalyst at elevated temperature and pressure in a reaction zone disposed in the extruder between the inlet port and an outlet port while continuously conveying same to the outlet port and at least quasi-continuously discharging the reacted cellulose from the extruder while maintaining the elevated temperature and pressure in the reaction zone by forming a dynamic seal zone at the upstream end of the reaction zone and valving the discharge downstream of the outlet port.

371826

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