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Hydrolysis of eucalyptus wood chips under hot compressed water in the presence of sulfonated carbon-based catalysts
Weerasai K. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Hydrolysis of eucalyptus wood chips under hot compressed water in the presence of sulfonated carbon-based catalysts
ผู้แต่ง / หัวหน้าโครงการ (EN): Weerasai K.
บทคัดย่อ (EN): Hydrolysis of lignocellulosic biomass to sugars and derivatives is a key step in production of biofuels and commodity chemicals in a biorefinery. In this study, catalytic hydrolysis of eucalyptus chips with solid sulfonated carbon-based catalysts prepared from three different carbon precursors (sucrose, glucose, and xylose) was studied under hot-compressed water at 150–250 °C with reaction time of 1–10 min. Increasing temperature up to 200 °C led to higher sugar yields from cellulose and hemicellulose while further increase in temperature caused higher formation of sugar degradation by-products. Sulfonated-sucrose (SO 3 H-Suc) showed the greatest performance on sugar production compared to other catalysts with less formation of furans and anhydroglucose; its high catalytic activity was related to its high acid site density as proven by NH 3 -TPD measurement. Size reduction and chemical pretreatment of the biomass were found to enhance the hydrolysis yield and reaction selectivity. The highest sugar yield of 40.7% comprising glucose, fructose, and xylose was achieved using 5% (w/w) SO 3 H-Suc at 200 °C for 5 min with milled biomass (60–100 μm) pretreated by alkaline oxidation. The work provides an alternative catalytic process for hydrolysis of lignocellulose in biomass industry. © 2018 Institution of Chemical Engineers
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-85048183620&doi=10.1016%2fj.fbp.2018.05.005&partnerID=40&md5=827c1dcba5cea2237cb4c254ba287263
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Hydrolysis
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Hydrolysis of eucalyptus wood chips under hot compressed water in the presence of sulfonated carbon-based catalysts
Weerasai K.
มหาวิทยาลัยมหิดล
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