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Catalytic hydrotreatment of triglycerides and various renewable oils into green diesel over metal–organic frameworks derived Ni@C catalyst
Biomass Conversion and Biorefinery ( IF 4 ) Pub Date : 2021-07-13 , DOI: 10.1007/s13399-021-01746-w
Peng Liu 1, 2 , Shibin Shang 1, 2 , Junming Xu 2 , Jing Li 2 , Jiaping Zhao 2 , Jianchun Jiang 2 , Minghao Zhou 3
Affiliation  

Triglycerides is a kind of natural oil widely existing in animals and plants, and it is also an ideal raw material for preparing biomass liquid fuel. Selectively hydrotreatment of unsaturated glyceride is an important strategy for the production of fuels and chemical feedstocks. In this work, catalytic hydrotreatment of triglycerides over Ni-based catalysts was investigated. Thus, an array of metal–organic frameworks derived Ni@C catalysts synthesized under different temperatures (350 °C, 400 °C, 450 °C) were prepared and applied for hydrotreatment of triglycerides. The highest conversion of triglycerides was 98.9% and the cracking rate could achieve 4.61% over the optimal Ni@C-BTC-400 catalyst in cyclohexane at 320 °C. The physicochemical characterizations were carried out by means of powder X-ray diffraction, scanning electronic microscopy, thermo gravimetric analyzer, N2 adsorption–desorption, and Raman. Based on the optimal reaction condition (320 °C, 3 h, 3.0 MPa H2), five typical vegetable oils and gutter oils were selected for the hydrotreatment study to investigate the adaptability of Ni@C-BTC-400 catalyst. The result indicated that Ni@C-BTC-400 catalyst performed good universality, and could transform oil raw materials with different fatty acid carbon chain structure to desired alkanes. Furthermore, the optimal Ni@C-BTC-400 catalyst could be carried out in next two consecutive recycling runs and could also be regenerated by H2 for the following experiments.



中文翻译:

金属-有机骨架衍生的Ni@C催化剂催化加氢处理甘油三酯和各种可再生油成绿色柴油

甘油三酯是一种广泛存在于动植物中的天然油脂,也是制备生物质液体燃料的理想原料。不饱和甘油酯的选择性加氢处理是生产燃料和化学原料的重要策略。在这项工作中,研究了在镍基催化剂上催化加氢处理甘油三酯。因此,制备了一系列在不同温度(350°C、400°C、450°C)下合成的金属有机骨架衍生的 Ni@C 催化剂,并将其应用于甘油三酯的加氢处理。甘油三酯的最高转化率为 98.9%,在 320°C 下,环己烷中的最佳 Ni@C-BTC-400 催化剂的裂解率可达到 4.61%。通过粉末X射线衍射、扫描电子显微镜、2吸附-解吸和拉曼。根据最佳反应条件(320°C,3 h,3.0 MPa H 2),选择五种典型的植物油和地沟油进行加氢处理研究,以研究Ni@C-BTC-400催化剂的适应性。结果表明,Ni@C-BTC-400催化剂具有良好的通用性,可以将具有不同脂肪酸碳链结构的石油原料转化为所需的烷烃。此外,优化的 Ni@C-BTC-400 催化剂可以在接下来的两个连续循环运行中进行,也可以通过 H 2再生用于以下实验。

更新日期:2021-07-13
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