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Production of Benzoic Acid through Catalytic Transformation of Renewable Lignocellulosic Biomass
Yi-heng Zhang,Ming-hui Fan,Rui Chang,Quan-xin Li*
Author NameAffiliationE-mail
Yi-heng Zhang Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China  
Ming-hui Fan Anhui Key Laboratory of Tobacco Chemistry, China Tobacco Anhui Industrial, Co., Ltd., Hefei 230088, China  
Rui Chang Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China  
Quan-xin Li* Department of Chemical Physics, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Anhui Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China liqx@ustc.edu.cn 
Abstract:
In the present work, we reported a novel route for the conversion of lignocellulosic biomass (sawdust) to a high-value chemical of benzoic acid under atmospheric pressure. The trans- formation involved the catalytic pyrolysis of sawdust into aromatics, the decomposition of heavier alkylaromatics to toluene, and the liquid-phase oxidation of toluene-rich aromatics to benzoic acid. The production of the desired benzoic acid from the sawdust-derived aro- matics, with the benzoic acid selectivity of 85.1 C-mol% and nearly complete conversion of toluene, was achieved using the MnO2/NHPI catalyst at 100 ℃ for 5 h. The in uence of adding methanol on the catalytic conversion of sawdust to the core intermediate of toluene was also investigated in detail.
Key words:  Lignocellulosic biomass  Benzoic acid  Catalytic pyrolysis  Dealkylation  Oxi-dation
FundProject:This work was support by the National Natural Key Basic Program of China (No.2013CB228105), the Pro-gram for Changjiang Scholars and Innovative Research Team in University and the Fundamental Research Funds for the Central Universities (No.wk2060190040).
木质纤维素生物质催化转化制备苯甲酸
张义恒,范明慧,常瑞,李全新*
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DOI:10.1063/1674-0068/30/cjcp1703047
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