Lignin-first biorefining of Nordic poplar to produce cellulose fibers could displace cotton production on agricultural lands
Lignin-first biorefining of Nordic poplar to produce cellulose fibers could displace cotton production on agricultural lands
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DOI：
10.1016/j.joule.2022.06.021
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发表时间：
2022-08-17
期刊：
影响因子：
39.8
通讯作者：
Samec, Joseph S. M.
中科院分区：
文献类型：
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作者：
Adler, Anneli;Kumaniaev, Ivan;Samec, Joseph S. M.
在这里，我们表明，杨树的木质素优先生物精炼可以生产溶解纤维素纸浆，该纸浆可以生产再生纤维素，从而替代棉花。这些结果反过来表明，通过扩大杨树种植园来生产纺织纤维，可以将专门用于棉花的农业土地开垦用于粮食生产。根据能够在北欧地区边缘土地上生长的适应气候的杨树无性系，我们估计环境可持续的年生物量产量约为 11 吨/公顷。就规模而言，这种杨树的木质素优先生物精炼每年可产生 2.4 吨/公顷的纺织品溶解浆和 1.1 m(3) 生物燃料。生命周期评估表明，相对于棉花生产，这种方法可以大大减少水消耗，并确定某些需要进一步改进的领域。总体而言，这项工作凸显了一条新的价值链，可减少纺织品、化学品和生物燃料的环境足迹，同时实现从棉花到粮食生产的土地开垦和节水。
Here, we show that lignin-first biorefining of poplar can enable the production of dissolving cellulose pulp that can produce regenerated cellulose, which could substitute cotton. These results in turn indicate that agricultural land dedicated to cotton could be reclaimed for food production by extending poplar plantations to produce textile fibers. Based on climate-adapted poplar clones capable of growth on marginal lands in the Nordic region, we estimate an environmentally sustainable annual biomass production of similar to 11 tonnes/ha. At scale, lignin-first biorefining of this poplar could annually generate 2.4 tonnes/ha of dissolving pulp for textiles and 1.1 m(3) biofuels. Life cycle assessment indicates that, relative to cotton production, this approach could substantially reduce water consumption and identifies certain areas for further improvement. Overall, this work highlights a new value chain to reduce the environmental footprint of textiles, chemicals, and biofuels while enabling land reclamation and water savings from cotton back to food production.