期刊
BIORESOURCE TECHNOLOGY
卷 275, 期 -, 页码 328-337出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.12.071
关键词
Model for high solids; Torque; Rotational speed; Viscosities; Glucose; Enzymatic hydrolysis of lignocellulose
资金
- US Department of Agriculture Biomass Research and Development Initiative and Western Sun Grant Research center [USDA-NIFA-9008-003540, U09940J]
- Iraqi Ministry of Higher Education and Scientific Research
The study describes a novel method using instantaneous mixing torque and rotational speed to estimate insoluble solids and glucose concentrations during enzymatic hydrolysis of biomass. This method is cost-effective for real-time monitoring and control of enzymatic hydrolysis and potentially scalable. The model was developed using biomass slurries at three solids loading (20, 30 and 45%) at various rotational speeds from 50 to 400 rpm. The results showed a significant drop in mixing torque at 12 h with high solids loading. Maximum glucose concentration (205 g/l) during hydrolysis was achieved at 45% solids loading. Insoluble solids and glucose concentration as a function of torque and rotational speeds were modeled using a modified Herschell-Bulkley model. The model describes the experimental observations with high fidelity (R-2 = 0.84) and can be used for real time monitoring of many multiphase reaction systems as enzymatic hydrolysis of lignocellulosic biomass and dry grind corn ethanol processes.
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