Progressing batch hydrolysis process

Details Progressing batch hydrolysis process Progressing batch hydrolysis process

1985-01-10

1986-10-07

Fisher, Richard V.

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

C13K 102

Patent

active

046157425

ABSTRACT:
A progressive batch hydrolysis process for producing sugar from a lignocellulosic feedstock, comprising passing a stream of dilute acid serially through a plurality of percolation hydrolysis reactors charged with said feedstock, at a flow rate, temperature and pressure sufficient to substantially convert all the cellulose component of the feedstock to glucose; cooling said dilute acid stream containing glucose, after exiting the last percolation hydrolysis reactor, then feeding said dilute acid stream serially through a plurality of prehydrolysis percolation reactors, charged with said feedstock, at a flow rate, temperature and pressure sufficient to substantially convert all the hemicellulose component of said feedstock to glucose; and cooling the dilute acid stream containing glucose after it exits the last prehydrolysis reactor.

REFERENCES:
patent: 2778751 (1957-01-01), Riehm
patent: 4427453 (1984-01-01), Reitter
Riegel's Handbook of Industrial Chemistry, Seventh Edition edited by Kent, ames A., pp. 436-475, (1974).

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