Recent advances in the acid-catalyzed conversion of lignin
Recent advances in the acid-catalyzed conversion of lignin
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木质素酸催化转化的最新进展
DOI：
10.1007/s13399-020-00976-8
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发表时间：
2020-08
影响因子：
4
通讯作者：
Shenfang Jiang
中科院分区：
文献类型：
--
作者：
Zhen Wu;Lei Hu;Yetao Jiang;Xiaoyu Wang;Jiaxing Xu;Qingfeng Wang;Shenfang Jiang
木质素是唯一一种从可再生资源中获得的天然芳香族高分子化合物，由于其结构复杂、连接稳定，不易转化。木质素通过酸催化剂的催化转化导致酚类单体的高产率，由于其用于生产生物燃料和化学品的潜力而引起了极大的兴趣。然而，到目前为止，木质素的酸催化转化尚未得到全面的总结。针对这一问题，本文系统地综述了酸催化转化木质素的机理分析、影响因素以及无机酸、有机酸、酸性离子液体、固定化液体酸、金属盐、金属氧化物、杂多酸、沸石等酸催化剂的最新研究进展。虽然已经取得了许多令人兴奋的结果，但通过该技术充分利用木质素仍然面临巨大的挑战。为了提高技术可行性，对提高酸催化剂的溶解性、催化活性、稳定性、可重复使用性和可设计性进行深入研究至关重要。图形摘要
As the only natural aromatic high molecular compound that was obtained from a renewable resource, lignin is resistant to conversion due to its complex structure and stable linkages. The catalytic conversion of lignin via acid catalysts leading to a high yield of phenolic monomers has gained great interest due to its potential for producing biofuels and chemicals. However, up to now, the acid-catalyzed conversion of lignin has not yet been comprehensively summarized. In order to fill this gap, mechanism analysis and influential factors of the acid catalysis process and the latest studies and advancements on the catalytic conversion of lignin via various types of acid catalysts, such as mineral acids, organic acids, acidic ionic liquids, immobilized liquid acids, metal salts, metal oxides, heteropoly acids, and zeolites, are systematically outlined and discussed. Although many exciting results have been achieved, the sufficient utilization of lignin by this technology still faces enormous challenges. To improve the technical feasibility, intensive investigations on improving the solubility, catalytic activity, stability, reusability, and designability of the acid catalysts are crucially important and imperative.Graphical abstract
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