Method for increasing the accessibility of cellulose in lignocel

Details Method for increasing the accessibility of cellulose in lignocel Method for increasing the accessibility of cellulose in lignocel

1981-06-01

1984-07-24

Smith, William F.

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

162 15, 162 21, 162 22, 162 68, 426807, 435165, A23K 112

Patent

active

044616481

ABSTRACT:
This invention comprises a method for increasing the accessibility of cellulose in lignocellulosic materials to chemical or biochemical reagents. The material is steam cooked for a predetermined time, then rapidly depressurized. A venting sequence is used to remove volatiles from the reactor. Optimal cooking times for normal and acid catalyzed cooking are disclosed, according to the discovery of a novel set of governing equations, wherein optimum cooking times can be determined as a time integration of reactor pressure.

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Paper Trade Journal, Mar. 30, 1944, pp. 35-37, (P&J).
Energy Research Abstracts, vol. 5, No. 22, #34662, Nov. 30, 1980.
Foody, Final Report, "Optimization of Steam Explosion Pretreatment", by Iotech Corporation (D.O.E. Report ET230501, dated Apr., 1980).

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