Process for chemical separation of the three main components of lignocellulosic biomass

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Ind. Eng. Chem., Prod. Res. Dev.; (United States)

DOI:https://doi.org/10.1021/i300006a024· OSTI ID:7011320

Koukios, E G; Valkanas, G N

Acid prehydrolysis with chemical delignification was studied as a method for fractionating lignocellulosic biomass into hemicellulose, lignin and cellulose. Experiments with wheat straw show that hemicellulose can be quantatively separated by prehydrolysis, but the structure of the residue is substantially modified. Delignification of this residue by conventional methods gives significant losses of polysaccharides and a degraded cellulose. The efficiency of the separation can be increased by nonconventional delignification, e.g. chlorination by Cl. In this case, the sugar losses are minimal and further degradation of cellulose during delignification can be avoided, while lignin is quantatively recovered from the pulping liquors.

• Research Organization: School of Chemical Engineering, Purdue Univ, West Lafayette, IN 47907
• OSTI ID: 7011320
• Journal Information: Ind. Eng. Chem., Prod. Res. Dev.; (United States), Journal Name: Ind. Eng. Chem., Prod. Res. Dev.; (United States) Vol. 21:2; ISSN IEPRA
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ACID HYDROLYSIS
CARBOHYDRATES
CELLULOSE
CEREALS
CHEMICAL REACTIONS
DECOMPOSITION
DELIGNIFICATION
GRAMINEAE
GRASS
HEMICELLULOSE
HYDROLYSIS
LIGNIN
LYSIS
ORGANIC COMPOUNDS
PLANTS
POLYSACCHARIDES
SACCHARIDES
SEPARATION PROCESSES
SOLVOLYSIS
STRAW
WHEAT