Sugar production from bioenergy sorghum by using pilot scale continuous hydrothermal pretreatment combined with disk refining [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 662.8 Other fuels
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2019
• Mô tả vật lý: Size: Article No. 121663 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 262787
• Chủ đề: 1. 09 biomass fuels; 2. Bioenergy sorghum; 3. Disk milling; 4. Pilot-scale continuous hydrothermal pretreatment; 5. Sugar production

Tóm tắt

Chemical-free pretreatments are attracting increased interest because they generate less inhibitor in hydrolysates. In this study, pilot-scaled continuous hydrothermal (PCH) pretreatment followed by disk refining was evaluated and compared to laboratory-scale batch hot water (LHW) pretreatment. Bioenergy sorghum bagasse (BSB) was pretreated at 160?190 �C for 10 min with and without subsequent disk milling. Hydrothermal pretreatment and disk milling synergistically improved glucose and xylose release by 10?20% compared to hydrothermal pretreatment alone. Maximum yields of glucose and xylose of 82.55% and 70.78%, respectively were achieved, when BSB was pretreated at 190 �C and 180 �C followed by disk milling. LHW pretreated BSB had 5?15% higher sugar yields compared to PCH for all pretreatment conditions. The surface area improvement was also performed. PCH pretreatment combined with disk milling increased BSB surface area by 31.80?106.93%, which was greater than observed using LHW pretreatment.