Hydroprocessing of vegetable oil to high-quality jet fuel range hydrocarbons (HRJ) plays a significant role in the development of completely interchangeable substitute for conventional petroleum-derived jet fuel and has drawn the attention of aviation experts due to its capacity to mitigate greenhouse gas emissions associated with the aviation industry. The limited performance of 1 wt. % Sn promoted Fe(3)-Cu(13)/SiO₂-Al₂O₃ catalyst in our previous study has been attributed to the successive consideration of one variable at a time in its evaluation. Maximization of oleic acid conversion and selectivity of jet fuel range hydrocarbons from hydroprocessing of oleic acid over 1 wt. % Sn promoted Fe(3)-Cu(13)/SiO₂-Al₂O₃ catalyst with the best combination of the process parameter involved via multivariate approach, and evaluation of kinetic and thermodynamic activation parameters is the focus of this study. Reduced cubic oleic acid conversion model and reduced quadratic jet fuel range hydrocarbons selectivity model of high significance levels, adequate precision, and high correlation coefficient were developed. Reaction temperature of 339.5°C, 1.6 MPa H₂ pressure, 6.2 wt.% catalyst concentration, and 8.0 h reaction time were optimum process parameters that can maximize oleic acid conversion and selectivity of jet fuel range hydrocarbons at 98.2% and 82.2%, respectively. This process was found to be endothermic, irreversible, and nonspontaneous with 45.8 KJ/mol activation enthalpy of reaction, 0.25 KJ/mol entropy of reaction, and the reaction's Gibb's free energy of 198.8 KJ/mol at 340°C. The minimum energy required for the reaction to take place was evaluated as 50.7 KJ/mol.

中文翻译：

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在 Sn(1)-Fe(3)-Cu(13)/SiO2-Al2O3 催化剂上加氢处理油酸以生产喷气燃料范围的碳氢化合物：工艺参数优化、动力学和热力学研究

将植物油加氢处理成高质量喷气燃料范围的碳氢化合物 (HRJ) 在开发完全可互换的传统石油衍生喷气燃料替代品方面发挥着重要作用，并因其减少温室气体排放的能力引起了航空专家的关注与航空业有关。1 重量的有限性能。在我们之前的研究中，% Sn 促进的 Fe(3)-Cu(13)/SiO ₂ -Al ₂ O ₃催化剂归因于在其评估中一次连续考虑一个变量。油酸加氢处理产生的喷气燃料范围内碳氢化合物的油酸转化率和选择性最大化超过 1 重量％。% Sn 促进 Fe(3)-Cu(13)/SiO ₂ -Al ₂O ₃催化剂与通过多元方法所涉及的工艺参数的最佳组合，以及动力学和热力学活化参数的评价是本研究的重点。开发了具有高显着性水平、足够精度和高相关系数的简化立方油酸转化模型和简化二次喷气燃料范围碳氢化合物选择性模型。反应温度 339.5°C，1.6 MPa H ₂压力、6.2 wt.% 的催化剂浓度和 8.0 小时的反应时间是最佳工艺参数，可以分别使油酸转化率和喷气燃料范围烃的选择性分别达到 98.2% 和 82.2%。发现该过程是吸热的、不可逆的和非自发的，反应的活化焓为 45.8 KJ/mol，反应熵为 0.25 KJ/mol，340°C 下反应的吉布斯自由能为 198.8 KJ/mol。发生反应所需的最小能量评估为 50.7 KJ/mol。