title: The influence of screw configuration on the pretreatment performance of a continuous twin screw-driven reactor (CTSR).
abstract: A combination of a continuous twin screw-driven reactor (CTSR) and a dilute acid pretreatment was used for the pretreatment of biomass with a high cellulose content and high monomeric xylose hydrolyzate. With the newly modified CTSR screw configuration (Config. 3), the influences of the screw rotational speed (30-60 rpm), of the pretreatment conditions such as acid concentration (1-5%) and reaction temperature (160-175 °C) at the operating condition of biomass feeding rate (1.0 g/min) and acid feeding rate (13.4 mL/min) on the pretreatment performance were investigated. The cellulose content in the pretreated rape straw was 67.1% at the following optimal conditions: barrel temperature of 165 °C, acid concentration of 3.0% (w/v), and screw rotational speed of 30 rpm. According to the three screw configurations, the glucose yields from enzymatic hydrolysis were 70.1%, 72.9%, and 78.7% for screw Configs. 1, 2, and 3, respectively.
authors: Department of Applied Chemical Engineering, Dankook University, Cheonan, Chungnam 330-714, Republic of Korea.
authors: Chang Ho
authors: CH
authors: Choi
authors: Byung-Hwan
authors: BH
authors: Um
authors: Kyeong Keun
authors: KK
authors: Oh
mesh_terms: D056804:Biofuels; D001709:Biotechnology / Q000295:instrumentation* / Q000379:methods; D029688:Brassica napus / Q000737:chemistry*; D005947:Glucose / Q000096:biosynthesis*; D006868:Hydrolysis; D008031:Lignin / Q000737:chemistry*; D012399:Rotation
chemical_list: D056804:Biofuels; C036909:lignocellulose; D008031:Lignin; D005947:Glucose