文献类型：期刊文献

英文题名：Atmospheric hydrodeoxygenation of biomass pyrolysis volatiles to aromatics over Hβ-supported Ni-based bimetallic catalysts

作者：Wu, Yujian[1];Xie, Linhong[1];Jiang, Enchen[2];Xu, Chunbao[3];Sun, Yan[2];Fan, Xudong[2];Tu, Ren[2];Cai, Leihe[1];Xu, Xiwei[2];Xu, Qing[1]

机构：[1]Guangdong Ocean Univ, Coll Ocean Engn & Energy, Zhanjiang 524088, Peoples R China;[2]South China Agr Univ, Coll Engn, Guangzhou 510640, Peoples R China;[3]Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China

年份：2027

卷号：217

外文期刊名：BIOMASS & BIOENERGY

收录：SCI-EXPANDED(收录号：WOS:001848907900001)、、WOS

基金：This work was financially supported by National Natural Science Foundation of China (Grant No.52476190) ; National Natural Science Foundation of China (Grant No.51706075) ; National Key Research and Development Project, China (Grant No.2019YFD1100602) ; Natural Science Foundation of Guangdong Province, China (Grant No.2024A1515010913) ; Zhanjiang Marine Youth Talent Innovation Project (Grant No. 2024R3002) ; 2025 Zhanjiang Science and Technology Project (Grant No. 2025B01045) ; 2025 Higher Education Science Research Planning Project of the Chinese Society of Higher Education (Grant No. 25R0309) ; Program for Scientific Research Start-up Funds of Guangdong Ocean University (Grant No. 060302072302) ; Youth S & T Talent Support Programme of GDSTA (Grant No. SKXRC2025403) ; Rural Revitalization Strategy Special Fund ("Special Project + Task List") project in Yunfu City, Guangdong Province, China (Grant No.2020020203) . The authors would like to thank Shiyanjia Lab ( www.shiyanjia.com ) for the support of catalyst measurements, thank the support of Guangdong Provincial Key Laboratory of Intelligent Equipment for South China Sea Marine Ranch and the Instrumental Analysis and Research Center of Guangdong Ocean University for the support of GC-MS tests.

语种：英文

外文关键词：Atmospheric hydrodeoxygenation; Ni-based bimetallic catalyst; H beta zeolite; Biomass pyrolysis volatiles; Aromatics

外文摘要：Hydrodeoxygenation (HDO) is a promising route for upgrading bio-oil to fuels and value-added chemicals. Herein, a series of H beta-zeolite supported Ni-based bimetallic catalysts promoted by Cr, Mo, W, Mn, Fe, or Co were prepared and evaluated for atmospheric HDO of guaiacol and for the upgrading of raw biomass pyrolysis volatiles. The effects of promoter identity, metal loading, time on stream (TOS), and short reactivation cycles were investigated. H beta/Ni-Mo(20 + 10) achieved a degree of deoxygenation (DOD%) of 99.9% at 380 degrees C and the highest collective benzene-toluene-xylene (BTX) selectivity of 51.4% during 0.5-1.0 h TOS. H beta/Ni-Fe also promoted key deoxygenation steps. In contrast, H beta/Ni30 and H beta/Ni-Co favored extensive hydrogenolysis and cracking, as indicated by greater CH4 formation, whereas Ni-Cr and Ni-Mn favored oxygenated aromatics and higher coke accumulation. Increasing the Ni loading from 10 wt% to 20 wt% improved DOD% while retaining high BTX selectivity, whereas further increases to 30-40 wt% shifted carbon strongly to CH4. Characterizations revealed that the interaction between Ni and Mo species was proposed to regulate the balance between hydrogenation and acid-catalyzed deoxygenation, thereby suppressing excessive cracking and coke formation. H beta/Ni-Mo(20 + 10) retained partial activity during a 3 h short-term test, with deactivation governed primarily by reversible coking, and recovered much of its activity after regeneration. Experiments with pine-nut shell and eucalyptus sawdust pyrolysis volatiles confirmed the catalyst's efficacy in eliminating unstable oxygenated functionalities and enhancing hydrocarbons production. These results demonstrate comparable laboratory-scale performance under atmospheric pressure; however, further research is required to evaluate the process-scale durability and hydrogen efficiency of this system.