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

Ming Hsun Cheng, Bruce S. Dien, D. K. Lee, Vijay Singh

Research output: Contribution to journalArticle

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 languageEnglish (US)
Article number121663
JournalBioresource Technology
Volume289
DOIs
StatePublished - Oct 2019

Fingerprint

Bagasse
bioenergy
sorghum
Sugars
Refining
sugar
Xylose
Glucose
Water
glucose
surface area
inhibitor
refining
bagasse
laboratory
hot water
xylose-glucose

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 journalArticle

@article{dd76f110a0694c9899e63f0703be00dd,
title = "Sugar production from bioenergy sorghum by using pilot scale continuous hydrothermal pretreatment combined with disk refining",
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.",
keywords = "Bioenergy sorghum, Disk milling, Pilot-scale continuous hydrothermal pretreatment, Sugar production, Surface area",
author = "Cheng, {Ming Hsun} and Dien, {Bruce S.} and Lee, {D. K.} and Vijay Singh",
year = "2019",
month = "10",
doi = "10.1016/j.biortech.2019.121663",
language = "English (US)",
volume = "289",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Limited",

}

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 -