TY - CONF
T1 - The kinetics of simultaneous aqueous extraction and hydrolysis of spruce hemicelluloses
AU - Rissanen, Jussi
AU - Grénman, Henrik
AU - Xu, Chunlin
AU - Krogell, Jens
AU - Willför, Stefan
AU - Murzin, Dmitry
AU - Salmi, Tapio
N1 - Funding Information:
This research was part of the activities at the Åbo Akademi Process Chemistry Centre. This study was financed by Forestcluster Ltd. and the Finnish Funding Agency for Technology and Innovation (Tekes) within the framework of the Future Biorefinery (FuBio) Joint Research 2 programme.
Publisher Copyright:
© NWBC 2012.All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - The aqueous extraction of hemicelluloses has gained an increasing interest with new emerging applications for hemicelluloses in the modern forest-based biorefinery concept. The extraction kinetics play a key role in their industrial utilisation. Pressurised hot water extraction of spruce sap wood was investigated in the temperature range 120–170°C using a large liquid-to-solid ratio in an intensified cascade reactor system. The results show significant temperature dependence of the extraction rate, albeit low influence of pH. Moreover, a clear dependence of the hydrolysis rate on the temperature and pH was observed. The molecular mass of the extracted hemicelluloses was influenced by the chip size. A kinetic model was developed for describing the extraction kinetics.
AB - The aqueous extraction of hemicelluloses has gained an increasing interest with new emerging applications for hemicelluloses in the modern forest-based biorefinery concept. The extraction kinetics play a key role in their industrial utilisation. Pressurised hot water extraction of spruce sap wood was investigated in the temperature range 120–170°C using a large liquid-to-solid ratio in an intensified cascade reactor system. The results show significant temperature dependence of the extraction rate, albeit low influence of pH. Moreover, a clear dependence of the hydrolysis rate on the temperature and pH was observed. The molecular mass of the extracted hemicelluloses was influenced by the chip size. A kinetic model was developed for describing the extraction kinetics.
UR - http://www.scopus.com/inward/record.url?scp=85086398921&partnerID=8YFLogxK
M3 - Paper (not published)
AN - SCOPUS:85086398921
SP - 416
EP - 417
T2 - 4th Nordic Wood Biorefinery Conference, NWBC 2012
Y2 - 23 October 2012 through 25 October 2012
ER -