High purity lignin from untreated larch bark: an efficient green methodology for lignin valorization and low-value by-product mitigation

IF 1.7 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD Journal of Wood Chemistry and Technology Pub Date : 2022-05-14 DOI:10.1080/02773813.2022.2072892

Alina Meindl, J. Grzybek, A. Petutschnigg, T. Schnabel

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引用次数: 2

Abstract

Abstract Increasing concerns toward climate change and fossil fuel-based products have opened the race toward viable alternative feedstocks, which could be utilized as alternatives for omnipresent chemicals such as fuels and polymers. Lignin is among one of the most promising candidates. Besides its promising chemical characteristics, it has also been put in the spotlight due to its economic potential for biorefinery profitability and waste reduction. As the timber industry has to fight a constantly growing larch bark by-product stream we decided to investigate its potential capacity as valuable source of biopolymers. Deep eutectic solvents due to their biodegradability, reusability and efficiency have been chosen as the extraction method of choice. The reaction parameters were optimized resulting in a very high lignin yield of 93%. Furthermore, the work-up process was investigated with a focus on quantitative chemical recycling and potential for upscaling to industrial scale. Graphical Abstract

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未经处理的落叶松树皮中的高纯度木质素：一种有效的木质素增值和低价值副产物缓解的绿色方法

摘要对气候变化和化石燃料产品的日益关注开启了寻找可行的替代原料的竞赛，这些原料可以用作燃料和聚合物等无处不在的化学品的替代品。木质素是最有前途的候选者之一。除了其有前景的化学特性外，它还因其在生物炼制盈利和减少废物方面的经济潜力而备受关注。由于木材行业必须与不断增长的落叶松树皮副产品流作斗争，我们决定调查其作为生物聚合物宝贵来源的潜在能力。深共晶溶剂由于其可生物降解性、可重复使用性和效率而被选为提取方法。对反应参数进行了优化，得到了93%的非常高的木质素产率。此外，对后处理过程进行了研究，重点是定量化学回收和扩大工业规模的潜力。图形摘要

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来源期刊

Journal of Wood Chemistry and Technology 工程技术-材料科学：纸与木材

CiteScore

3.70

自引率

20.00%

发文量

审稿时长

3 months

期刊介绍： The Journal of Wood Chemistry and Technology (JWCT) is focused on the rapid publication of research advances in the chemistry of bio-based materials and products, including all aspects of wood-based polymers, chemicals, materials, and technology. JWCT provides an international forum for researchers and manufacturers working in wood-based biopolymers and chemicals, synthesis and characterization, as well as the chemistry of biomass conversion and utilization. JWCT primarily publishes original research papers and communications, and occasionally invited review articles and special issues. Special issues must summarize and analyze state-of-the-art developments within the field of biomass chemistry, or be in tribute to the career of a distinguished researcher. If you wish to suggest a special issue for the Journal, please email the Editor-in-Chief a detailed proposal that includes the topic, a list of potential contributors, and a time-line.