数字农科院2.0

Effect of Mesopore Structural Parameters in Alumina Supports on Catalytic Hydrodeoxygenation of Guaiacol to Cycloalkanes via Ni-Supported Al2O3 Catalysts

文献类型： 外文期刊

作者： Wen Huang;Chengyan Wen;Yanting Su;Xinghua Zhang;Longlong Ma

作者机构：

关键词： cycloalkanes;guaiacol;hydrodeoxygenation;lignin-derived oil;mesopore;Ni-based Al2O3 catalysts

期刊名称： Energies

ISSN： 1996-1073

年卷期： 2025 年 18 卷 12 期

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： The elevated oxygen content in lignin-derived oil restricts its direct application as a liquid fuel. Ni-based Al2O3 catalysts are commonly employed to enhance the quality of lignin-derived oil via the hydrodeoxygenation (HDO) process. In this study, we successfully synthesized Ni-supported Al2O3 catalysts with diverse mesopore structural parameters of the Al2O3 support. Subsequently, we investigated the impacts of mesoporous size and volume on the HDO of guaiacol, a representative model compound of lignin-derived oil. The results indicate that optimizing the mesoporous size can enhance catalyst stability and significantly boost selectivity for cyclohexane. Moreover, an increase in the mesoporous volume can further improve the selectivity of cycloalkanes in the products. When the Ni/meso-Al2O3-F-100 catalyst was utilized, the cycloalkane selectivity reached 98.8%. During the upgrading of lignin-derived oil, the Ni/meso-Al2O3-F-200 catalyst, featuring a mesopore size of 4.07 nm and a mesopore volume of 0.286 cm3/g, exhibited outstanding performance. Notably, its selectivity for alkanes reached 65.9%, significantly higher than that of the commercial Ni/c-Al2O3 catalyst, which has a mesopore size of 3.83 nm and a mesopore volume of 0.184 cm3/g. This work offers valuable insights into the design of efficient and stable Ni-based Al2O3 catalysts for upgrading lignin-derived oil.

分类号：

  • 相关文献

[1]Using nanocatalysts to upgrade pyrolysis bio-oil: A critical review. Hossein Shahbeik,Alireza Shafizadeh,Vijai Kumar Gupta,Su Shiung Lam,Hajar Rastegari,Wanxi Peng,Junting Pan,Meisam Tabatabaei,Mortaza Aghbashlo. 2023

作者其他论文 更多>>