Steam pretreatment of Salix with and without SO2 impregnation for production of bioethanol.
In the wood-to-ethanol process, pretreatment of the material is necessary prior to enzymatic hydrolysis to obtain high overall yields of sugar and ethanol. Steam pretreatment of fast-growing Salix either with or without SO2 impregnation has been investigated by varying different parameters. Overall glucose yields of above 90% and overall xylose yields higher than 80% were obtained both with and without impregnation. However, the most favorable pretreatment conditions for the separate yields of glucose and xylose differed to a lower degree using SO2-impregnated wood chips, resulting in higher total sugar yield than that obtained with non-impregnated wood chips.
Sassner
Per
P
Department of Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund Sweden. per.sassner@chemeng.lth.se
Galbe
Mats
M
Zacchi
Guido
G
D018929:Cell Culture Techniques / Q000379:methods*; D002482:Cellulose / Q000737:chemistry / Q000378:metabolism; D003470:Culture Media / Q000737:chemistry* / Q000378:metabolism; D004736:Energy-Generating Resources; D000431:Ethanol / Q000378:metabolism*; D005947:Glucose / Q000737:chemistry / Q000378:metabolism; D006868:Hydrolysis; D008031:Lignin / Q000737:chemistry / Q000378:metabolism; D035261:Plant Components, Aerial / Q000737:chemistry / Q000382:microbiology; D012441:Saccharomyces cerevisiae / Q000254:growth & development / Q000378:metabolism*; D032108:Salix / Q000737:chemistry* / Q000382:microbiology*; D013227:Steam; D013458:Sulfur Dioxide / Q000737:chemistry*; D014994:Xylose / Q000737:chemistry / Q000378:metabolism
D003470:Culture Media; D013227:Steam; D013458:Sulfur Dioxide; C036909:lignocellulose; D000431:Ethanol; D002482:Cellulose; D008031:Lignin; D014994:Xylose; D005947:Glucose