用于生产增值产品的木质纤维素生物质预处理的非常规策略:可持续和循环经济方法

IF 3.5 4区 工程技术 Q3 ENERGY & FUELS
Vishal Kaushik, Rashmi Kataria
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引用次数: 0

摘要

不断增长的全球人口推动了能源需求。对传统能源的持续依赖正在加剧全球变暖和有害气体的大量排放。常规能源,如煤、原油和天然气,通常用于石化过程,必须用可持续的替代品取代。生产可再生能源和化学品的最受欢迎和负担得起的来源之一是木质纤维素生物质(LCB)。木质纤维素生物质,包括农业废弃物、能源作物和森林残留物,容易获得,具有成本效益,并为生物能源和化学生产提供了可持续的原料。为了分解木质纤维素生物质的自然结构并促进其组分的分离,预处理是必不可少的。然而,传统的预处理方法有明显的缺点;与非传统方法相比,它们往往有毒、污染环境,而且价格昂贵。为了解决这些问题,我们必须转向危害更小、更环保的战略。微波、超声波、辐射、流体力学和脉冲电场等技术是很有前途的替代方案,它们产生的有毒副产品更少,而且更环保。本文探讨了特定的非常规预处理方法的优点、局限性和机制,以及木质纤维素生物质在生物质增值和循环经济中的作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Non-conventional strategies for pretreatment of lignocellulosic biomass for production of value-added products: a sustainable and circular economy approach

The growing global population is driving up energy demand. The continued reliance on conventional energy sources is contributing to global warming and significant emissions of harmful gases. Conventional energy sources, such as coal, crude oil, and natural gas, commonly used in petrochemical processes, must be replaced with sustainable alternatives. One of the most popular and affordable sources for producing renewable energy and chemicals is lignocellulosic biomass (LCB). Lignocellulosic biomass, which includes agricultural waste, energy crops, and forest residues, is readily available, cost-effective, and provides a sustainable feedstock for bio-based energy and chemical production. To break down the natural structure of lignocellulosic biomass and facilitate the separation of its components for various applications, pretreatment is essential. Conventional pretreatment methods, however, have significant drawbacks; they tend to be toxic, environmentally polluting, and expensive compared to non-conventional approaches. To address these issues, we must shift toward less harmful, eco-friendly strategies. Techniques such as microwave, ultrasound, irradiation, hydrodynamics, and pulsed electric fields are promising alternatives, generating fewer toxic by-products and being more environmentally friendly. This paper explores the benefits, limitations, and mechanisms of specific non-conventional pretreatment methods, as well as the role of lignocellulosic biomass in biomass valorization and the circular economy.

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来源期刊
Biomass Conversion and Biorefinery
Biomass Conversion and Biorefinery Energy-Renewable Energy, Sustainability and the Environment
CiteScore
7.00
自引率
15.00%
发文量
1358
期刊介绍: Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.
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