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    • 3. 发明授权
    • Fuel compositions
    • 燃料组成
    • US08152869B2
    • 2012-04-10
    • US12337414
    • 2008-12-17
    • Howard Richard HayesDavid John Wedlock
    • Howard Richard HayesDavid John Wedlock
    • C10L1/18
    • C10L1/1616C10L1/04C10L1/08C10L10/14
    • Middle distillate fuel composition is provided containing (a) a middle distillate base fuel, in particular a diesel base fuel, and (b) a Fischer-Tropsch derived paraffinic base oil component with a viscosity of at least 8 mm2/s at 100° C. In component (b), the ratio of the percentage of epsilon methylene carbon atoms to the percentage of isopropyl carbon atoms is suitably 8.2 or below. Its pour point may be −30° C. or lower. Also disclosed is the use of a Fischer-Tropsch derived paraffinic heavy base oil in a middle distillate fuel composition, for the purpose of improving the cold flow properties of the composition and/or for reducing the concentration of a cold flow or flow improver additive in the composition.
    • 提供中间馏分燃料组合物,其包含(a)中间馏分基础燃料,特别是柴油基础燃料,和(b)在100℃下粘度至少为8mm 2 / s的费 - 托衍生的石蜡基础油组分 在组分(b)中,亚甲基碳原子百分比与异丙基碳原子百分比的比率适宜为8.2或更低。 其倾点可以为-30℃或更低。 还公开了在中间馏分燃料组合物中使用费 - 托衍生的链烷烃重基油,用于改善组合物的冷流动性和/或降低冷流或流动改进剂添加剂的浓度 组成。
    • 8. 发明授权
    • Base oil formulations
    • 基础油配方
    • US08221614B2
    • 2012-07-17
    • US12745930
    • 2008-12-04
    • Gilbert Robert Bernard GermaineDavid John Wedlock
    • Gilbert Robert Bernard GermaineDavid John Wedlock
    • C10M105/04
    • C10M169/04C10M111/04C10M2205/173C10N2220/00C10N2220/022C10N2230/00C10N2230/02C10N2240/08C10N2240/201Y10S208/95
    • Base oil formulation containing (i) a Fischer-Tropsch derived light base oil and (ii) a Fischer-Tropsch derived gas oil. The formulation can be prepared by back-blending a Fischer-Tropsch derived light base oil with a Fischer-Tropsch derived gas oil, for instance derived from the same Fischer-Tropsch synthesis. Also provided is the use of a Fischer-Tropsch derived gas oil in a base oil formulation containing a Fischer-Tropsch derived light base oil, for the purpose of improving the cold flow properties of the formulation while maintaining its flash point above a desired target value, and/or for the purpose of reducing the concentration of a cold flow additive in the formulation, preferably with less of a reduction in the flash point of the formulation than theory would have predicted to occur due to the incorporation of the Fischer-Tropsch derived gas oil.
    • 基础油配方含有(i)费 - 托衍生的轻质基础油和(ii)费 - 托衍生的瓦斯油。 该制剂可以通过将费 - 托衍生的轻质基础油与费 - 托衍生的瓦斯油进行回混来制备,例如衍生自相同的费 - 托合成法。 还提供了在含有费 - 托衍生的轻质基础油的基础油配方中使用费 - 托衍生的瓦斯油,以改进制剂的冷流性质,同时保持其闪点高于所需目标值 ,和/或为了降低制剂中冷流动添加剂的浓度,优选地,与理论预期将由于引入费 - 托衍生物而导致的制剂闪点的降低更少 瓦斯油。