High temperature antioxidant additives and methods that improve a liquid fuel composition's thermal oxidative stability are disclosed. A liquid fuel composition may comprise a liquid fuel and a high temperature antioxidant additive. The high temperature antioxidant additive may comprise an aromatic carbocyclic ring that is monocyclic and comprises substituents comprising a hydroxyl group and an iminomethyl group positioned in an ortho relationship.
本发明公开了可提高液体燃料组合物热氧化稳定性的高温抗氧化添加剂和方法。液体燃料组合物可包括液体燃料和高温抗氧化添加剂。高温抗氧化添加剂可包括一个单环芳香碳环,该碳环由以正交关系定位的羟基和亚
氨基甲基组成的取代基构成。