Impact Factor:

5.9

DOI number:

10.1016/j.indcrop.2024.118227

Affiliation of Author(s):

环境与资源学院

Teaching and Research Group:

化学工程系

Journal:

Industrial Crops & Products

Funded by:

重庆市教育委员会；重庆市自然科学基金面上项目

Key Words:

Hydrodeoxygenation; Biodiesel; Oxygen-containing compounds; Product distribution; Fats and oil

Abstract:

The deep utilization of green and renewable chemicals has laid the foundation for sustainable development.Recombining and modifying the long carbon chain structure and oxygen-containing functional groups in fats andoils can prepare important chemical products, such as high-quality second-generation biodiesel and oxygencontaining compounds (fatty alcohols, fatty acids, and esters). To improve the hydrodeoxygenation (HDO)performances of Ni-based catalysts, the effect of surface composition was studied in detail. Acid-base centers ofNi/γ-Al2O3 catalysts were finely regulated by adding metal oxides (ZrO2, CeO2, La2O3, and MgO). It was foundthat enhancing the basicity of the studied catalyst was conducive to the methyl laurate conversion, but was notconducive to the HDO of oxygen-containing intermediates. In other words, the strong basicity would promote thecondensation reaction of oxygen-containing intermediates over Ni-based catalyst. Among the studied catalysts,Ni/La2O3/γ-Al2O3 catalyst showed the highest methyl laurate conversion (73%) and oxygen-containing productselectivity (64%) at 400 ◦C, LHSV = 1.5 h− 1, H2/oil = 500 Nm3/m3, and PH2 = 2.0 MPa over the Ni/La2O3/γ-Al2O3 catalyst. The acidity was favorable to improve the conversion of oils and the yield of alkane products,and the basicity was favorable to obtain oxygen-containing compounds over the corresponding catalysts.

First Author:

Shuang Chen

Co-author:

Meijun Leng,Zhengjiang Liao,Jia Zeng,Hongmei Xie

Indexed by:

源刊论文

Correspondence Author:

Guilin Zhou

Discipline:

Engineering

Document Type:

Journal Article

Volume:

211

Page Number:

118227

Translation or Not:

no

Date of Publication:

2024-03-01

Included Journals:

SCI

Links to published journals:

https://doi.org/10.1016/j.indcrop.2024.118227