以莫基离子液体为分散前驱体，实现硬脂酸的有效加氢脱氧：机理和动力学

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2025-04-11 DOI:10.1002/aic.18859

Leilian Shi, Weihao Chen, Yongde Ma, Hongwei Zhang, Zhenping Cai, Yanning Cao, Kuan Huang, Lilong Jiang

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引用次数: 0

摘要

在本研究中，对利用各种钼前驱体生产的原位 MoS2 催化剂对硬脂酸进行选择性加氢脱氧（HDO）的性能进行了评估。值得注意的是，由[N8881]2MoO4--一种具有油溶性的钼基离子液体（IL）--生成的原位 MoS2 催化剂在 300°C、8 兆帕、6 小时的条件下，硬脂酸转化率高达 99.9%，HDO 产物十八烷的产率为 97.5%。对原位 MoS2 催化剂进行了全面的表征和分析，以阐明实验结果。此外，还根据产物分布提出了硬脂酸的反应途径，并计算和讨论了相对动力学参数。结果表明，应用 Mo 基 IL 作为前驱体生成原位 MoS2 催化剂用于生物脂类的选择性 HDO 是非常有趣和理想的。

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Mo‐based ionic liquid as dispersive precursor for effective hydrodeoxygenation of stearic acid: Mechanism and kinetics

In the present work, the selective hydrodeoxygenation (HDO) performance of stearic acid over in situ MoS2 catalysts produced from various Mo precursors was evaluated. Notably, the in situ MoS2 catalyst generated from [N8881]2MoO4—a Mo‐based ionic liquid (IL) with oil‐soluble property—achieves up to 99.9% of stearic acid conversion with the HDO product octadecane yield of 97.5% at 300°C, 8 MPa, and 6 h. The activity of [N8881]2MoO4 for catalyzing the selective HDO reaction is much better than commercial precursors like Mo(CO)6 and (NH4)6Mo7O24. The in situ MoS2 catalysts were thoroughly characterized and analyzed to elucidate the experimental results. Moreover, the reaction pathway of stearic acid was proposed according to the product distribution, and the relative kinetic parameters were also calculated and discussed. The results indicate that applying Mo‐based IL as the precursor to generate in situ MoS2 catalyst for the selective HDO of biolipids is highly interesting and desired.

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来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.