Pretreatment of <em>Miscanthus giganteus</em> with Lime and Oxidants for Biofuels [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, 2015
• Mô tả vật lý: Size: p. 1743-1750 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 264841
• Chủ đề: 1. 09 biomass fuels

Tóm tắt

 To make biomass more accessible for enzymatic hydrolysis, lime pretreatment of <
 em>
 Miscanthus giganteus<
 /em>
  with oxidants was explored from 100 to 150 �C. Composition data for the recovered solid were obtained to determine the effects of the reaction time, lime dosage, oxidant loading, and temperature on sugar production efficiency. Under selected conditions (0.2 g of lime/g of biomass, 200 psig O<
 sub>
 2<
 /sub>
 , and 150 �C for 1 h), delignification was 64.7%. The pretreated biomass was then followed by enzymatic hydrolysis. Furthermore, the yield of cellulose in the recovered solid to glucose was 91.7% and hemicellulose to xylose was 67.3%, 7.1 and 18.2 times larger than those obtained from raw biomass, respectively. Pretreatment with oxidants substantially raised delignification of raw <
 em>
 M. giganteus<
 /em>
 , thereby enhancing enzymatic hydrolysis to sugars, while results were not improved when pretreatment included ammonium molybdate.