Butane combustion engine

Following this study, Wilk et al. [230] simulated the composition-time profiles for selected alkenes and oxygenated products that were formed from n-butane and i-butane combustion, and also mixtures of these fuels, in a motored engine. An engine cycle was simulated within a spatially uniform zone of varying volume. The volume history was specified in such a way that the predicted pressure history matched the measured polytropic pressure history in non-reactive conditions. Composition profiles were compared with those measured experimentally. Some of the kinetic features that distinguish the reactivities of the two fuels and their modes of reaction involving alkylperoxy and dialkylperoxy radicals were elucidated in this work. The n-butane oxidation model had also been applied to the... 

The majority of the work on the vapor phase oxidation mechanism of the hydrocarbons higher than butane has been for the purpose of studying the operation of gasoline internal combustion engines. As these studies have been largely devoted to anti-knock action a discussion may well be reserved for that section. However, some of the work is relevant. 

Propane and butane (known most extensively in commercial and popular terms as LP-gas or LPG) have an extremely wide range of domestic, industrial, commercial, agricultural, and internal combustion engine uses. It is estimated that the two gases, unmixed and in mixtures. 

Automotive gasoline is essentially a blend of hydrocarbons derived from petroleum and is used to fuel internal combustion, spark-ignition engines. Gasoline contains hundreds of individual hydrocarbons which range from n-butane to Cn hydrocarbons such as methyl naphthalene. 

Reid vapor pressure is measured at 100°F (37.8°C) and is used to help ensure that gasoline will vaporize adequately and ignite within the combustion chamber of an engine. Vapor pressure is provided by volatile gasoline components such as dissolved butane gas and the presence of pentanes, hexanes, heptanes, and benzene. 

The determination of fluorine in various liquid and gaseous hydrocarbons is vital at many points in the refining process primarily in any blend component that has been sourced fiom the hydrogen fluoride (HF) Alkylation Unit. Fluorinated compounds poison process catalysts therefore, it is essential that process feeds be as free of fluorine as possible. As an example, butane is used to produce methyl tertiary-butyl ether (MTBE). The butane must be fluorine free prior to butane isomerization to prevent the poisoning of the process catalyst, fri addition, any HF acid or its combustion products may be extremely destructive in any environment. Therefore, any finished hydrocarbon product or synthesized material that is utilized in the presence of sufficient heat (i.e., car engine), such as frel and lubricating oils, must be free of fluoride. 

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