High-octane quality fuels are important for increasing spark ignition engine efficiency, but their production comes at a substantial economic and environmental cost. The possibility of producing high anti-knock quality gasoline by blending high-octane bio-derived components with low octane naphtha streams is attractive. 2-phenyl ethanol (2-PE), is one such potential candidate that can be derived from lignin, a biomass component made of interconnected aromatic groups. We first ascertained the blending anti-knock quality of 2-PE by studying the effect of spark advancement on knock for various blends 2-PE, toluene, and ethanol with naphtha in a cooperative fuels research engine. The blending octane quality of 2-PE indicated an anti-knock behavior similar or slightly greater than that of toluene, and ethylbenzene, which could be attributed to either chemical kinetics or charge cooling effects. To isolate chemical kinetic effects, a model for 2-PE auto-ignition was developed and validated using ignition delay times measured in a high-pressure shock tube. Simulated ignition delay times of 2-PE were also compared to those of traditional high-octane gasoline blending components to show that the gas phase reactivity of 2-PE is lower than ethanol, and comparable to toluene, and ethylbenzene at RON, and MON relevant conditions. The gas-phase reactivity of 2-PE is largely controlled by its aromatic ring, while the effect of the hydroxyl group is minimal. The higher blending octane quality of 2-PE compared to toluene, and ethylbenzene can be attributed primarily to the effect of the hydroxyl group on increasing heat of vaporization.

高辛烷值的燃料对于提高火花点火发动机的效率很重要，但是其生产却要付出巨大的经济和环境成本。通过将高辛烷值生物衍生成分与低辛烷值石脑油物流混合生产高抗爆品质汽油的可能性很有吸引力。2-苯基乙醇（2-PE）是一种这样的潜在候选物，它可以衍生自木质素，木质素是由相互连接的芳族基团构成的生物质组分。我们首先通过在合作燃料研究引擎中研究火花提前对各种混合物2-PE，甲苯和乙醇与石脑油的爆震的影响来确定2-PE的混合抗爆质量。2-PE的混合辛烷值表明其抗爆性能与甲苯和乙苯的抗爆性能相似或稍高。这可能归因于化学动力学或电荷冷却效应。为了隔离化学动力学影响，开发了2-PE自动点火模型，并使用在高压减震管中测量的点火延迟时间进行了验证。还将2-PE的模拟点火延迟时间与传统的高辛烷值汽油调合组分的点火延迟时间进行了比较，结果表明2-PE的气相反应性低于乙醇，并且在RON和MON下与甲苯，乙苯相当，与MON有关条件。2-PE的气相反应性很大程度上受其芳环的控制，而羟基的影响则很小。与甲苯和乙苯相比，2-PE的混合辛烷值较高，这主要归因于羟基对增加汽化热的影响。