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Validation of Octane Hyperboosting Phenomenon in Prenol and Structurally Related Olefinic Alcohols
Hyperboosting is a recently discovered phenomenon in which the research octane number (RON) of a blend is higher than both the neat blendstock and the neat fuel it was blended into. RON is a measure of a fuel's resistance to knock, and knock is a cause of engine inefficiency. Blends which exhibit hyperboosting are blends in which an overall improvement in engine efficiency may be expected. The first discovery of hyperboosting came from blending experiments in which prenol was blended into several different base fuels. Here, ignition delay time (IDT) measurements taken using a commercially available constant volume combustion chamber called the Advanced Fuel Ignition Delay Analyzer (AFIDA) are presented. The data show that some prenol blends have longer IDTs (lower reactivity) than either neat prenol or the base fuel, providing further evidence of hyperboosting. Additionally, more blending data is presented in which the base fuel is varied, which allows for a better understanding of hyperboosting sensitivity to chemical classes. The data indicate that aromatics may inhibit, and branched alkanes may enhance the magnitude of hyperboosting observed. Enthalpy of vaporization estimates are also given for several molecules which are blended into a 4-component surrogate. These estimates are derived from Equation of State simulations and reveal that there is no observable correlation between hyperboosting and enthalpy of vaporization. Blending data for molecules which share structural similarities with prenol are also presented. Structure property relationships are suggested, in which the double bond motif of prenol seems to play an important role in hyperboosting. This may help to understand hyperboosting and its underlying mechanism. Lastly, blending curves of surrogate blends with prenol experienced hyperboosting under lean (Homogeneous Charged Compression Ignition-HCCI) operating conditions, which validates that hyperboosting is not an artifact of the octane test methods, but inherent to the properties of prenol.
Efficient Electrocatalytic CO[subscript 2] Reduction to C[subscript 2+] Alcohols at Defect-Site-Rich
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Expression and Characterization of Monofunctional Alcohol Dehydrogenase Enzymes in Clostridium thermocellum
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Alcohol assistant surface passivated perovskites for efficient perovskite solar cells
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The effect of alcohol consumption in the treatment of nontuberculous mycobacteria
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Oxidative coupling of furfural with alcohols to 2-alkyl-3-(2-furyl) acroleins using Li-ion battery waste based LiNiaMnbCocOd/graphite catalyst
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Structure-Based Engineering of a Sesquiterpene Cyclase to Generate an Alcohol Product: Conversion of epi -Isozizaene Synthase into α-Bisabolol Synthase
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Condensed-Phase Ethanol Conversion to Higher Alcohols over Bimetallic Catalysts
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Freezing of Dilute Aqueous-Alcohol Nanodroplets: The Effect of Molecular Structure
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Viscoelasticity Enhancement and Shear Thickening of Perfluorinated Sulfonic Acid Ionomer Dispersions in Water–Alcohol Solvent Mixtures
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