Cheng Chongbo, Wang Jinzhi, Shen Dekui, Xue Jiangtao, Guan Sipian, Gu Sai, Luo Kai Hong
Key Lab of Thermal Energy Conversion and Control of MoE, Southeast University, Nanjing 210096, China.
Jiangsu Frontier Electric Power Technology Co., Ltd., Nanjing 211102, China.
Polymers (Basel). 2017 Jun 21;9(6):240. doi: 10.3390/polym9060240.
Lignin as the most abundant source of aromatic chemicals in nature has attracted a great deal of attention in both academia and industry. Solvolysis is one of the promising methods to convert lignin to a number of petroleum-based aromatic chemicals. The process involving the depolymerization of the lignin macromolecule and repolymerization of fragments is complicated influenced by heating methods, reaction conditions, presence of a catalyst and solvent systems. Recently, numerous investigations attempted unveiling the inherent mechanism of this process in order to promote the production of valuable aromatics. Oxidative solvolysis of lignin can produce a number of the functionalized monomeric or oligomeric chemicals. A number of research groups should be greatly appreciated with regard to their contributions on the following two concerns: (1) the cracking mechanism of inter-unit linkages during the oxidative solvolysis of lignin; and (2) the development of novel catalysts for oxidative solvolysis of lignin and their performance. Investigations on lignin oxidative solvolysis are extensively overviewed in this work, concerning the above issues and the way-forward for lignin refinery.
木质素作为自然界中最丰富的芳香族化学品来源，在学术界和工业界都引起了广泛关注。溶剂解是将木质素转化为多种石油基芳香族化学品的一种有前景的方法。该过程涉及木质素大分子的解聚和片段的再聚合，受加热方式、反应条件、催化剂的存在和溶剂体系的影响较为复杂。最近，大量研究试图揭示这一过程的内在机制，以促进有价值芳烃的生产。木质素的氧化溶剂解可以产生多种功能化的单体或低聚化学品。许多研究小组在以下两个方面的贡献值得高度赞赏：（1）木质素氧化溶剂解过程中单元间连接键的断裂机制；（2）用于木质素氧化溶剂解的新型催化剂的开发及其性能。本文对木质素氧化溶剂解的研究进行了广泛综述，涉及上述问题以及木质素精炼的未来发展方向。
