Rapid steam hydrolysis/extraction of mixed hardwoods as a biomass pretreatment
Journal Article
·
· J. Wood Chem. Technol.; (United States)
Rapid steam hydrolysis of wood chips with continuous condensate/product removal was investigated as a biomass pretreatment similar to steam explosion. Steam was introduced at the top of a pressurized reactor containing mixed southern (USA) hardwood chips while condensate and particle products were removed at the bottom of the reactor. A reaction time of one minute was employed for isothermal steaming runs from 160 to 280 degrees C. Fractionation of wood occurred at temperature above 200 degrees C as hemicellulose and lignin began to appear in the steam condensate fraction, leaving a cellulose-rich fraction in the steaming reactor. At high temperature cellulose was not degraded as much as it was in steam explosion at the same temperature, presumably because of the removal of acetic acid as it is formed. Lignin extracted from the solid residue appeared particularly reactive as determined by nitrobenzene oxidation and pyrolysis/gas chromatography. Lignin collected in the steam condensate was also very reactive, presumably because of its rapid cooling after being removed from the reactor. 23 references.
- Research Organization:
- Mississippi State Univ., MS
- OSTI ID:
- 5574794
- Journal Information:
- J. Wood Chem. Technol.; (United States), Journal Name: J. Wood Chem. Technol.; (United States) Vol. 4:1; ISSN JWCTD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of a new pretreatment method (rapid steam hydrolysis) and the comparison of rapid steaming, steam explosion, autohydrolysis, and wet oxidation as pretreatment processes for biomass conversion of southern hardwoods
Steam explosion of mixed hardwood chips as a biomass pretreatment
Similarities and differences in pretreating woody biomass by steam explosion, wet oxidation, autohydrolysis, and rapid steam hydrolysis/continuous extraction
Thesis/Dissertation
·
Fri Dec 31 23:00:00 EST 1982
·
OSTI ID:5234630
Steam explosion of mixed hardwood chips as a biomass pretreatment
Journal Article
·
Wed Jun 01 00:00:00 EDT 1983
· Ind. Eng. Chem., Prod. Res. Dev.; (United States)
·
OSTI ID:5249340
Similarities and differences in pretreating woody biomass by steam explosion, wet oxidation, autohydrolysis, and rapid steam hydrolysis/continuous extraction
Technical Report
·
Sat Dec 31 23:00:00 EST 1983
·
OSTI ID:5192616
Related Subjects
09 BIOMASS FUELS
090222* -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
AUTOHYDROLYSIS
CARBOHYDRATES
CELLULOSE
CHEMICAL REACTIONS
DECOMPOSITION
HEAT TREATMENTS
HEMICELLULOSE
HIGH TEMPERATURE
HYDROLYSIS
LIGNIN
LYSIS
ORGANIC COMPOUNDS
POLYSACCHARIDES
SACCHARIDES
SOLID WASTES
SOLVOLYSIS
STEAM
WASTES
WOOD WASTES
090222* -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
AUTOHYDROLYSIS
CARBOHYDRATES
CELLULOSE
CHEMICAL REACTIONS
DECOMPOSITION
HEAT TREATMENTS
HEMICELLULOSE
HIGH TEMPERATURE
HYDROLYSIS
LIGNIN
LYSIS
ORGANIC COMPOUNDS
POLYSACCHARIDES
SACCHARIDES
SOLID WASTES
SOLVOLYSIS
STEAM
WASTES
WOOD WASTES