文献类型：期刊文献

英文题名：Selective hydrogenolysis of lignin for phenolic monomers with a focus on β-O-4 cleavage and C = O hydrodeoxygenation

作者：Yan, Bochao[1];Ding, Wenbin[1];Lin, Xiaoyu[1];Cai, Qinjie[1];Zhang, Suping[1]

机构：[1]East China Univ Sci & Technol, Res Ctr Biomass Energy, Sch Resources & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：320

外文期刊名：FUEL

收录：;EI(收录号：20221211808031);WOS:【SCI-EXPANDED(收录号:WOS:000783137300009)】；

基金：Acknowledgements This work was supported financially by the National Key R&D Pro-gram of China (2018YFB1501601) .

语种：英文

外文关键词：Lignin; Hydrodeoxygenation; Molybdenum carbide; Model compound

摘要：Catalytic hydrogenolysis of lignin for the production of phenolic monomers has received a lot of attentions. During the hydrogenolysis process, the cleavage of beta-O-4 is important for high conversion and the hydrodeoxygenation of C = O is favor for high selectivity of monophenols. Herein, multiple functional metal modified molybdenum carbide catalyst was designed for beta-O-4 cleavage and C = O hydrodeoxygenation in lignin and model compound. Experiments coupled with various characterization methods (X-ray diffraction, chemisorption-desorption, X-ray photoelectron spectroscopy) showed that the combined acidity and hydrogenation performance of molybdenum carbide was modified by Ni metal, and was beneficial for the complete cleavage of beta-O-4. Meanwhile, due to the synergistic effects between Ni and Cu/Fe, the totally hydrodeoxygenation of C = O was also obtained without excessive hydrogenation of benzene rings. Moreover, by using Ni7Fe3-Mo2C/AC as the catalyst, maximally 35.42% of phenolic monomers and 85.11% of ethyl acetate soluble products from corn straw lignin hydrogenolysis were obtained.