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High temperature pretreatment and hydrolysis of cotton stalk for producing sugars for bioethanol production

机译：棉秆的高温预处理和水解以生产生物乙醇用糖

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摘要

The aim of this work was to evaluate cotton stalk (waste plant material after harvesting the cotton) as feedstock for bioethanol production. Different pretreatment strategies were tried using sodium hydroxide in a high pressure reactor equipped with a pitch blade turbine stirrer, followed by enzymatic hydrolysis using cellulases; the process optimization was carried out using Taguchi experimental design. Best results were achieved when the pretreatment was carried out at 180 °C for 45 min with mixing of substrate at 100rpm. The sugar yield was evaluated based on pretreatment severity. The hydrolysis efficiency of pretreated cotton plant waste was very good (96%), showing the excellent efficiency of the method in removing the lignin. The material balance in each stage of the process was estimated and the total process efficiency was found to be 53% based on glucose conversion.
机译：这项工作的目的是评估棉秆（收获棉花后的废植物材料）作为生产生物乙醇的原料。在配备有桨叶式涡轮搅拌器的高压反应器中尝试了使用氢氧化钠的不同预处理策略，然后使用纤维素酶进行酶促水解。使用田口实验设计进行工艺优化。预处理在180°C下进行45分钟，同时以100 rpm的速度混合底物可获得最佳结果。根据预处理的严重程度评估糖的产量。预处理的棉花植物废料的水解效率非常好（96％），显示了该方法去除木质素的出色效率。估计了该过程每个阶段的物料平衡，基于葡萄糖转化率，总过程效率为53％。

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  • 来源
    《Fuel》 |2012年第1期|p.340-345|共6页
  • 作者

    Parameswaran Binod; Mathiyazhakan Kuttiraja; Mohan Archana; Kanakambaran Usha Janu; Raveendran Sindhu; Rajeev-K. Sukumaran; Ashok Pandey;

  • 作者单位

    Centre for Biofuels, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India;

    Centre for Biofuels, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India;

    Centre for Biofuels, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India;

    Centre for Biofuels, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India;

    Centre for Biofuels, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India;

    Centre for Biofuels, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India;

    Centre for Biofuels, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    cotton stalk; lignocellulosic material; bioethanol; pretreatment severity; enzymatic hydrolysis;

    机译：棉杆;木质纤维素材料;生物乙醇预处理的严重程度;酶促水解;

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