Abstract
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.
| Original language | English (US) |
|---|---|
| Article number | 121663 |
| Journal | Bioresource Technology |
| Volume | 289 |
| DOIs | |
| State | Published - Oct 2019 |
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Keywords
- Bioenergy sorghum
- Disk milling
- Pilot-scale continuous hydrothermal pretreatment
- Sugar production
- Surface area
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal
Cite this
Sugar production from bioenergy sorghum by using pilot scale continuous hydrothermal pretreatment combined with disk refining. / Cheng, Ming Hsun; Dien, Bruce S.; Lee, D. K.; Singh, Vijay.
In: Bioresource Technology, Vol. 289, 121663, 10.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Sugar production from bioenergy sorghum by using pilot scale continuous hydrothermal pretreatment combined with disk refining
AU - Cheng, Ming Hsun
AU - Dien, Bruce S.
AU - Lee, D. K.
AU - Singh, Vijay
PY - 2019/10
Y1 - 2019/10
N2 - 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.
AB - 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.
KW - Bioenergy sorghum
KW - Disk milling
KW - Pilot-scale continuous hydrothermal pretreatment
KW - Sugar production
KW - Surface area
UR - http://www.scopus.com/inward/record.url?scp=85067546412&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067546412&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2019.121663
DO - 10.1016/j.biortech.2019.121663
M3 - Article
C2 - 31234074
AN - SCOPUS:85067546412
VL - 289
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
M1 - 121663
ER -