A strategy for generating high-quality cellulose and lignin simultaneously from woody biomass,Green Chemistry

当前位置： X-MOL 学术 › Green Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

A strategy for generating high-quality cellulose and lignin simultaneously from woody biomass
Green Chemistry ( IF 9.3 ) Pub Date : 2017-09-01 00:00:00 , DOI: 10.1039/c7gc02492d
Xiaoqin Si _{1,

2,

3,

4,

5} , Fang Lu _{1,

2,

3,

4,

5} , Jiazhi Chen _{1,

2,

3,

4,

5} , Rui Lu _{1,

2,

3,

4,

5} , Qianqian Huang _{1,

2,

3,

4,

5} , Huifang Jiang _{1,

2,

3,

4,

5} , Esben Taarning _{6,

7,

8,

9} , Jie Xu _{1,

2,

3,

4,

5}

Affiliation

Efficient fractionation of woody biomass provides an opportunity to separate and then upgrade each of the cellulose, hemicellulose and lignin fractions. The current processes for the fractionation of biomass target high-quality cellulose or lignin solely. Here, we developed a simple and efficient strategy for achieving high-quality cellulose and lignin simultaneously from woody biomass. Solvent thermal treatment was used to release the lignin and hemicellulose fragments from beech sawdust. 92.8% cellulose was retained in cellulose pulp with the purity of cellulose as high as 93.5% and a highly crystalline structure, using tetrahydrofurfuryl alcohol (THFA) and water as the solvent. In addition, 77.4% pure lignin powder was recovered. A linear correlation between the lignin monomer yield and the percentage of total β-O-4 or condensed linkages was observed during the lignin depolymerization process. Our strategy offers a possibility for the high-value utilization of whole biomass.

中文翻译：

从木质生物质同时生产优质纤维素和木质素的策略

木质生物质的有效分级分离提供了机会，使纤维素，半纤维素和木质素各分离，然后进行提质。用于生物质分馏的当前方法仅针对高质量的纤维素或木质素。在这里，我们开发了一种简单有效的策略，可以从木质生物质中同时获得高质量的纤维素和木质素。使用溶剂热处理从山毛榉木屑中释放出木质素和半纤维素碎片。使用四氢糠醇（THFA）和水作为溶剂，将92.8％的纤维素保留在纤维素纸浆中，其中纤维素的纯度高达93.5％，具有高度结晶的结构。另外，回收了77.4％的纯木质素粉末。在木质素解聚过程中，观察到木质素单体产率与总β-O-4或缩合键的百分比之间存在线性关系。我们的策略为整个生物质的高价值利用提供了可能性。

更新日期：2017-09-15

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11