Sugar – starch – and carbohydrates – Processes – Carbohydrate manufacture and refining
Patent
1978-03-31
1980-04-22
Marcus, Michael S.
Sugar, starch, and carbohydrates
Processes
Carbohydrate manufacture and refining
127 1, 260124R, C13K 102, B01F 100, B01J 100
Patent
active
041993713
ABSTRACT:
Continuous hydrolysis to produce sugars is effected by cyclically immersing a solid, divided lignocellulosic material in a bath of concentrated hydrochloric acid and draining the material between successive immersions so as to dissolve the produced sugars, until the sugar concentration of the acid in the bath has attained a desired value.
The solid material and the liquid acid are delivered to a tubular horizontal rotary reactor arranged to provide a bath of the acid, to produce a rotating movement for cyclical immersion of the solid material in the bath of acid and longitudinally displace the solid material undergoing hydrolysis together with the acid of the bath and to continuously discharge solid residue and acid containing dissolved sugars due to overflow by gravity at an outlet end of the reactor.
REFERENCES:
patent: 1670727 (1928-05-01), Kocher
patent: 1990097 (1935-02-01), Scholler et al.
patent: 2086701 (1937-07-01), Dreyfus
patent: 2538457 (1951-01-01), Hudson
patent: 2778751 (1957-01-01), Riehm
patent: 2951775 (1960-09-01), Apel
patent: 3212933 (1965-10-01), Hess et al.
Armanet Jean-Michel
Hamm Thomas
Regnault Alain
Sachetto Jean-Pierre
Tournier Herve
Battelle (Memorial Institute)
Marcus Michael S.
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