Recycled biorefinery system integrating phosphoric acid/acetone pretreatment of sugarcane bagasse with subsequent platform chemicals generation
Recycled biorefinery system integrating phosphoric acid/acetone pretreatment of sugarcane bagasse with subsequent platform chemicals generation
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集甘蔗渣磷酸/丙酮预处理与后续平台化学品生成于一体的回收生物精炼系统
DOI：
10.15376/biores.14.2.4623-4638
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发表时间：
2019-04
期刊：
影响因子：
1.5
通讯作者：
Gao Yi
中科院分区：
文献类型：
--
作者：
Wang Qiong;Liu Shuna;He Chao;Zhuang Xinshu;Yu Qiang;Wang Wen;Qi Wei;Tan Xuesong;Yuan Zhenhong;Gao Yi
为了最大限度地减少在一锅酸/有机溶剂系统中从木质纤维素制备平台化学品（糠醛和乙酰丙酸）过程中多糖（半纤维素和纤维素）的浪费，开发了一种基于甘蔗渣分馏和磷酸/丙酮预处理方法的新型两步生物精炼系统。首先研究了不同预处理条件对甘蔗渣分级的影响。在最佳条件下（5 g甘蔗渣，40 mL 85%磷酸，50℃，1 h，预冷丙酮），获得72.5%木糖和74.5%葡萄糖（预处理的残余生物量）。将丙酮从丙酮提取物中蒸发除去，然后通过在提取物中添加水来沉淀并回收可溶性木质素。将水溶液（含磷酸和20.8%木糖）与残渣洗涤水（含41.7%木糖）混合，在180℃下生产糠醛。同时，通过不同磷酸/丙酮系统中的葡萄糖转化评估了纤维素残渣产生LA的潜力。
In order to minimize the waste of polysaccharides (hemicellulose and cellulose) during preparation of platform chemicals (furfural and levulinic acid) from lignocellulose in one-pot acid/organic solvent systems, a novel two-step biorefinery system was developed based on sugarcane bagasse fractionation with a phosphoric acid/acetone pretreatment method. The effect of different pretreatment conditions on sugarcane bagasse fractionation was studied at first. Under the optimal condition (5 g bagasse, 40 mL 85% phosphoric acid, 50 °C, 1 h, precooled acetone), 72.5% xylose and 74.5% glucose (the residual biomass from pretreatment) were obtained. Acetone was evaporated and removed from the acetone extract, and then the soluble lignin was precipitated and recovered through the addition of water in the extract. The water solution (containing phosphoric acid and 20.8% xylose) and washing water from residue (containing 41.7%% xylose) was combined to produce furfural at 180 °C. Meanwhile, the potential of LA generation from cellulosic residue was evaluated via glucose conversion in different phosphoric acid/acetone systems.
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影响因子：
15.1
作者：
Qiong Wang;X. Zhuang;Wen Wang;Xuesong Tan;Qiang Yu;W. Qi;Zhenhong Yuan
通讯作者：
Qiong Wang;X. Zhuang;Wen Wang;Xuesong Tan;Qiang Yu;W. Qi;Zhenhong Yuan
影响因子：
3.9
作者：
Xiangning Shi;Qiuyan Cui;Yudong Zheng;Shuai Peng;Guojie Wang;Yajie Xie
通讯作者：
Xiangning Shi;Qiuyan Cui;Yudong Zheng;Shuai Peng;Guojie Wang;Yajie Xie
影响因子：
3.8
作者：
Y. Zhang;S. Ding;J. Mielenz;Jing-Biao Cui;R. Elander;M. Laser;M. Himmel;J. McMillan;L. Lynd
通讯作者：
Y. Zhang;S. Ding;J. Mielenz;Jing-Biao Cui;R. Elander;M. Laser;M. Himmel;J. McMillan;L. Lynd
影响因子：
3.9
作者：
Taiying Zhang;R. Kumar;C. Wyman
通讯作者：
Taiying Zhang;R. Kumar;C. Wyman
影响因子：
32.5
作者：
Alonso, David Martin;Wettstein, Stephanie G.;Dumesic, James A.
通讯作者：
Dumesic, James A.