Development Status and Prospect of Lignocellulose Pretreatment Technology
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摘要:
木质纤维素来源广泛,是最丰富的可再生资源,但木质纤维素结构致密、难降解,需要进行预处理。木质纤维素预处理在很大程度上决定了工艺可行性、经济可行性和环境可持续性。讨论了预处理在木质纤维素生物能源回收方面的应用进展,旨在为相关行业实现高效木质纤维素生物转化提供参考。
Abstract:Lignocellulose comes from a wide range of sources and is the most abundant renewable resource. However, lignocellulose has a dense structure and is difficult to degrade, so pretreatment is required before lignocellulose is utilized. Pretreatment of lignocellulose largely determines technological feasibility, economic feasibility and environmental sustainability. Application progress of pretreatment in bioenergy recovery of lignocellulose was discussed in order to provide reference for related industries to achieve efficient lignocellulose biotransformation.
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Keywords:
- lignocellulose /
- biomass /
- renewable resources /
- pretreatment technology
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表 1 不同预处理技术的优缺点对比
Table 1. Comparison of advantages and disadvantages of different pretreatment methods
预处理技术 优点 缺点 传统预处理 物理预处理 机械预处理 无抑制剂产生、操作简单 高成本、高能量消耗 超声波预处理 低能量消耗、无抑制剂产生 选择性低、高能量消耗 热预处理 无毒,对环境友好 有抑制剂产生 化学预处理 碱预处理 反应时间短 腐蚀性强、有抑制剂产生 酸预处理 抑制剂产生较少 环境污染、停留时间长、高能量消耗 氧化预处理 对环境友好、选择多 有抑制剂产生 有机溶剂预处理 反应时间短 高腐蚀性,对环境有污染 生物预处理 反应条件温和、低能耗、对环境无污染 反应时间长、纤维素回收率低 联合预处理 碱热预处理 低成本、对环境友好 高能耗、高温度 氨纤维爆炸 预处理条件温和、无抑制剂产生 高温高压、高能耗、环境污染 新兴预处理 高成本、高生物降解性、高回收率、低毒 高黏度 -
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