Selective Utilization of the Methoxy Group in Lignin to Produce Acetic Acid

被引:83
作者
Mei, Qingqing [1 ,2 ]
Liu, Huizhen [1 ,2 ]
Shen, Xiaojun [1 ,2 ]
Meng, Qinglei [1 ]
Liu, Hangyu [1 ,2 ]
Xiang, Junfeng [1 ]
Han, Buxing [1 ,2 ]
机构
[1] Chinese Acad Sci, CAS Key Lab Colloid & Interface & Thermodynam, CAS Res Educ Ctr Excellence Mol Sci, Beijing Natl Lab Mol Sci,Inst Chem, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
acetic acid; biomass conversion; carbon monoxide; lignin; water; AROMATIC MONOMERS; BIOMASS; DEPOLYMERIZATION; HYDROGENOLYSIS; CONVERSION; CATALYSTS; CLEAVAGE; HYDROGENATION; CARBONYLATION; VALORIZATION;
D O I
10.1002/anie.201706846
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Selective transformation of lignin into a valuable chemical is of great importance and challenge owing to its complex structure. Herein, we propose a strategy for the transformation of methoxy group (-OCH3) which is abundant in lignin into pure highly valuable chemicals. As an example to apply this strategy, a route to produce acetic acid with high selectivity by conversion of methoxy group of lignin was developed. It was demonstrated that the methoxy group in lignin could react with CO and water to generate acetic acid over RhCl3 in the presence of a promoter. The conversions of methoxy group in the kraft lignin and organosolv lignin reached 87.5% and 80.4%, respectively, and no by-product was generated. This work opens the way to produce pure chemicals using lignin as the feedstock.
引用
收藏
页码:14868 / 14872
页数:5
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