title: Application of a continuous twin screw-driven process for dilute acid pretreatment of rape straw.
abstract: 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.
authors.affiliation: Department of Applied Chemical Engineering, Dankook University, Cheonan, Chungnam 330-714, Republic of Korea.
authors.forename: Chang Ho
authors.initials: CH
authors.lastname: Choi
authors.forename: Kyeong Keun
authors.initials: KK
authors.lastname: Oh
mesh_terms: D000143:Acids / Q000737:chemistry*; D018533:Biomass; D001937:Brassica / Q000737:chemistry*; D002241:Carbohydrates / Q000032:analysis; D004864:Equipment and Supplies; D006868:Hydrolysis
chemical_list: D000143:Acids; D002241:Carbohydrates