Comparative study on two-step concentrated acid hydrolysis for the extraction of sugars from lignocellulosic biomass

Title
Comparative study on two-step concentrated acid hydrolysis for the extraction of sugars from lignocellulosic biomass
Authors
필립 위자야로베르투스Vania Tanda Widyaya하정명서동진김창수
Keywords
concentrated acid hydrolysis; crystallinity; EFB; Oak wood; Pine wood
Issue Date
2014-07
Publisher
Bioresource technology
Citation
VOL 164, 221-231
Abstract
Among all the feasible thermochemical conversion processes, concentrated acid hydrolysis has been applied to break the crystalline structure of cellulose efficiently and scale up for mass production as lignocellulosic biomass fractionation process. Process conditions are optimized by investigating the effect of decrystallization sulfuric acid concentration (65–80 wt%), hydrolysis temperature (80 °C and 100 °C), hydrolysis reaction time (during two hours), and biomass species (oak wood, pine wood, and empty fruit bunch (EFB) of palm oil) toward sugar recovery. At the optimum process condition, 78–96% sugars out of theoretically extractable sugars have been fractionated by concentrated sulfuric acid hydrolysis of the three different biomass species with 87–90 g/L sugar concentration in the hydrolyzate and highest recalcitrance of pine (softwood) was determined by the correlation of crystallinity index and sugar yield considering reaction severity.
URI
http://pubs.kist.re.kr/handle/201004/47627
ISSN
09608524
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KIST Publication > Article
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