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Application of a continuous twin screw-driven process for dilute acid pretreatment of rape straw



Application of a continuous twin screw-driven process for dilute acid pretreatment of rape straw



Bioresource Technology 110: 349-354



Rape straw, a processing residue generated from the bio-oil industry, was used as a model biomass for application of continuous twin screw-driven dilute acid pretreatment. The screw rotation speed and feeding rate were adjusted to 19.7rpm and 0.5g/min, respectively to maintain a residence time of 7.2min in the reaction zone, respectively. The sulfuric acid concentration was 3.5wt% and the reaction temperature was 165°C. The enzymatic digestibility of the glucan in the pretreated solids was 70.9%. The continuous process routinely gave around 28.8% higher yield for glucan digestibility than did the batch processing method.

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Accession: 051607187

Download citation: RISBibTeXText

PMID: 22330597

DOI: 10.1016/j.biortech.2012.01.075



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