Catalytic deep eutectic solvent for levoglucosenone production by pyrolysis of cellulose
Catalytic deep eutectic solvent for levoglucosenone production by pyrolysis of cellulose
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DOI：
10.1016/j.biortech.2021.126323
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发表时间：
2021-12-06
影响因子：
11.4
通讯作者：
Hayashi, Jun-ichiro
中科院分区：
文献类型：
--
作者：
Saragai, Shouya;Kudo, Shinji;Hayashi, Jun-ichiro
以深度共熔溶剂(DESS)为催化剂，在纤维素热解过程中选择性地合成了多功能生物平台左旋糖苷(LGO)。在所考察的18种DESS中，以对甲苯磺酸为氢键供体的DESS具有用于纤维素热解所需的热稳定性。当DESS与纤维素结合时，可以降低热解温度，从而提高了LGO的选择性，以碳为单位，最高产率为41.5%。由于它们的热稳定性，可以从热解残渣中回收DESS并重复使用。低温热解Dess回收率达97.9%，LGO产率为14.0%。因此，DES辅助的纤维素热解是一种很有前途的生产LGO的方法。
This work presents the selective production of the versatile bio-based platform levoglucosenone (LGO) using deep eutectic solvents (DESs) as catalysts during cellulose pyrolysis. Among 18 types of DESs examined, those containing p-toluenesulfonic acid as a hydrogen bond donor possessed the requisite thermal stability for use in the pyrolysis of cellulose. When those DESs were combined with cellulose, the pyrolysis temperature could be reduced which led to greater selectivity for LGO, the highest yield being 41.5% on a carbon basis. Because of their thermal stability, the DESs could be recovered from the pyrolysis residue and reused. The DESs recovery reached 97.9% in the pyrolysis at a low temperature with the LGO yield of 14.0%. Thus, DES-assisted cellulose pyrolysis is a promising methodology for LGO production.