Steam explosion of mixed hardwood chips as a biomass pretreatment
Journal Article
·
· Ind. Eng. Chem., Prod. Res. Dev.; (United States)
Mixed southern hardwood chips were pretreated by steam explosion. Reaction temperatures ranged from 167 to 235 degrees C, with reaction times of 0.5, 1.0, and 2.0 min. The highest reaction temperatures degraded up to two-thirds of the hemicelluloses, with the remainder soluble in hot water. The cellulose content decreased only slightly at the higher reaction temperatures. The steam-explosion pretreatment did not increase the rate of acid hydrolysis of the cellulose. The apparent lignin content increased as teh steam-explosion temperature increased. The lignin was partially extractable by a hot alkaline solution. No differences were observed with the addition of NaOH catalyst. Scanning electron microscopy showed that wood chips exploded under mild conditions were only partially defibrated, while severe conditions shredded the fibers into many individual fragments. (Refs. 26).
- Research Organization:
- Mississippi Forest Products Utilization Lab., Mississippi State Univ., Mississippi State, MS 39762
- OSTI ID:
- 5249340
- Journal Information:
- Ind. Eng. Chem., Prod. Res. Dev.; (United States), Journal Name: Ind. Eng. Chem., Prod. Res. Dev.; (United States) Vol. 22:2; ISSN IEPRA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Rapid steam hydrolysis/extraction of mixed hardwoods as a biomass pretreatment
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
Similarities and differences in pretreating woody biomass by steam explosion, wet oxidation, autohydrolysis, and rapid steam hydrolysis/continuous extraction
Journal Article
·
Sat Dec 31 23:00:00 EST 1983
· J. Wood Chem. Technol.; (United States)
·
OSTI ID:5574794
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
Thesis/Dissertation
·
Fri Dec 31 23:00:00 EST 1982
·
OSTI ID:5234630
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
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALKALINE HYDROLYSIS
CARBOHYDRATES
CELLULOSE
CHEMICAL REACTIONS
DECOMPOSITION
HEAT TREATMENTS
HEMICELLULOSE
HYDROLYSIS
LIGNIN
LYSIS
ORGANIC COMPOUNDS
POLYSACCHARIDES
SACCHARIDES
SOLID WASTES
SOLVOLYSIS
STEAM
WASTES
WOOD
WOOD WASTES
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALKALINE HYDROLYSIS
CARBOHYDRATES
CELLULOSE
CHEMICAL REACTIONS
DECOMPOSITION
HEAT TREATMENTS
HEMICELLULOSE
HYDROLYSIS
LIGNIN
LYSIS
ORGANIC COMPOUNDS
POLYSACCHARIDES
SACCHARIDES
SOLID WASTES
SOLVOLYSIS
STEAM
WASTES
WOOD
WOOD WASTES