燃料化学学报（中英文）2023，Vol.51Issue(3)：358-366,9.DOI:10.1016/S1872-5813(22)60061-6
Ni-Cu-Ru/HZSM-5催化木质素生物油加氢脱氧制芳香烃的研究
Hydrodeoxygenation of lignin derived bio-oil into aromatic hydrocarbons over Ni-Cu-Ru/HZSM-5 catalyst
摘要
Abstract
The complexity and diversity of lignin derived bio-oil (LDB) has posed a great challenge to the subsequent processing and utilization. In this work, HZSM-5 was modified by sodium hydroxide and followed by Ni, Cu and Ru species. LDB was used as the raw biocrude to prepare bio-oil rich in aromatic hydrocarbons with modified HZSM-5 catalysts under supercritical ethanol conditions (320 ℃, 14 MPa). Results showed that the desilicated HZSM-5 with the loading of Ni, Cu and Ru (Ni-Cu-Ru/DeHZSM-5) exhibited the best catalytic performance with a high relative amount of aromatic hydrocarbons of 28.95％. After catalytic hydrodeoxygenation (HDO) of LDB, 80.40％ upgraded bio-oil (UBO) with 96.32％ energy recovery was obtained in the presence of Ni-Cu-Ru/DeHZSM-5. Demethoxylation and dehydration were the main reactions in the catalytic HDO process. Potential reaction pathways of guaiacol, syringol and creosol were also proposed in this paper. The heating value of UBO reached 35.22 MJ/kg compared with LDB, which was increased by 19.80％. The water content and viscosity of UBO were also significantly improved. The micro-mesoporous structure of modified HZSM-5 with loading of Ni, Cu and Ru was beneficial to promote the yield of the aromatic hydrocarbons.关键词
木质素/生物油/加氢脱氧/催化剂/机理/芳香烃Key words
lignin/bio-oil/hydrodeoxygenation/catalyst/mechanism/aromatic hydrocarbons分类
能源科技引用本文复制引用
李秉硕,冯薜萱,吴开页,杨天华..Ni-Cu-Ru/HZSM-5催化木质素生物油加氢脱氧制芳香烃的研究[J].燃料化学学报（中英文）,2023,51(3):358-366,9.基金项目
The project was supported by the National Natural Science Foundation of China(51906165,52176195). （51906165,52176195）
