Jet fuel is a mixture of different hydrocarbon groups, and the mass contribution of each of these groups toward the overall chemical composition of the fuel dictates the bulk physical properties of the fuel after completion of the refining and blending processes. The fluidity properties of jet fuel mixtures at low temperatures are critical in understanding and mitigating the safety risks and performance attributes of aircraft engines, which may lead to the introduction of more stringent specification limits in the near future. Therefore, in this study the low-temperature viscosity and freeze point properties of jet fuels were investigated by variation of the linear to branched chain paraffin mass ratio, in conjunction with variation of the carbon number distribution according to a mixture by process variables experimental design. Furthermore, response surface models were developed and discussed for the two main fluidity properties of interest and inferences were made from the models for the potential generation of optimal jet fuel mixtures.

中文翻译：

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合成喷气燃料特性的响应面模型

喷气燃料是不同烃基的混合物，这些基团对燃料整体化学成分的质量贡献决定了精制和混合过程完成后燃料的整体物理性能。喷气燃料混合物在低温下的流动性对于理解和减轻飞机发动机的安全风险和性能属性至关重要，这可能会导致在不久的将来引入更严格的规格限制。因此，在这项研究中，通过改变线性到支链石蜡的质量比，并根据工艺变量实验设计根据混合物的碳数分布，研究了喷气燃料的低温粘度和凝固点特性。此外，