TY - JOUR
T1 - Effect of mixing on enzymatic hydrolysis of cardboard waste
T2 - Saccharification yield and subsequent separation of the solid residue using a pressure filter
AU - Kinnarinen, Teemu
AU - Shakhanova, Marina
AU - Hietanen, Erika
AU - Salmimies, Riina
AU - Häkkinen, Antti
AU - Louhi-Kultanen, Marjatta
PY - 2012/4
Y1 - 2012/4
N2 - Cellulosic wastes, from sources such as low-quality cardboard and paper, are regarded as potential feedstocks for bioethanol production. One pathway from these cellulosic materials to ethanol is saccharification (hydrolysis) followed by fermentation. Saccharification is commonly performed using enzymes that are able to cleave the cellulosic structure to smaller units, preferably to glucose monomers. During the hydrolysis, mixing conditions have a considerable impact on the performance of the enzymes. Thus mixing conditions in the hydrolysis tank can also influence the downstream operations and, consequently, the overall economy of the bioethanol process. In this experimental study, four types of impeller, at different hydrolysis conditions were used. The effect of mixing on the glucose yield and on the filtration characteristics of the hydrolysate was evaluated. It was shown that not only the sugar yield depended on the mixing conditions: the effect on the solid-liquid separation step was even more significant.
AB - Cellulosic wastes, from sources such as low-quality cardboard and paper, are regarded as potential feedstocks for bioethanol production. One pathway from these cellulosic materials to ethanol is saccharification (hydrolysis) followed by fermentation. Saccharification is commonly performed using enzymes that are able to cleave the cellulosic structure to smaller units, preferably to glucose monomers. During the hydrolysis, mixing conditions have a considerable impact on the performance of the enzymes. Thus mixing conditions in the hydrolysis tank can also influence the downstream operations and, consequently, the overall economy of the bioethanol process. In this experimental study, four types of impeller, at different hydrolysis conditions were used. The effect of mixing on the glucose yield and on the filtration characteristics of the hydrolysate was evaluated. It was shown that not only the sugar yield depended on the mixing conditions: the effect on the solid-liquid separation step was even more significant.
KW - Bioethanol
KW - Enzymatic hydrolysis
KW - Mixing
KW - Pressure filtration
KW - Specific cake resistance
UR - http://www.scopus.com/inward/record.url?scp=84858281154&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2012.01.138
DO - 10.1016/j.biortech.2012.01.138
M3 - Article
C2 - 22357287
AN - SCOPUS:84858281154
VL - 110
SP - 405
EP - 411
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -