Kerosene paraffin/aromatic content

Dilute with lower-viscosity kerosene having a higher paraffin/lower aromatic content. 

In yet another test method for the determination of aniline, point and mixed aniline point (ASTM D-611, IP 2), the proportions of the various hydrocarbon constituents of kerosene can be determined. This test is most often used to estimate the aromatic content of kerosene. Aromatic compounds exhibit the lowest aniline points and paraffin compounds have the highest aniline points, with cycloparaffins (naphthenes) and olefins having aniline points between the two extremes. In any homologous series the aniline point increases with increasing molecular weight. 

According to the increase of PS content in HDPE and PS mixture, in Eigure 5.15 the fraction of gasoline components in the liquid products was increased from about 85 wt% (pure HDPE) to about 98 wt% (pure PS) and the rest was kerosene + disel (C13-C24). No heavy oil (> 24) was detected. In the catalytic degradation of pure HDPE without PS, the major product was olefin components whereas the paraffin products as well as the aromatic and naphthene products with a cyclic structure were minor products. According as PS content in the reactant increased from 0 to 20 wt%, the fraction of paraffin... 

Burning oil kerosene contains three main types of hydrocarbons— paraffinic, naphthenic, and aromatic— with a preponderance of the paraffinic type. This is in contrast to power kerosene, or tractor vaporizing oil, which has a comparatively high content of aromatics and naphthenes favorable for high octane rating. It may also contain slight amounts of sulfur in the form of a variety of organic compounds. 

Kerosene (middle distillate) Paraffins. Chain length of Cjo to Cjg. Mixture of kerosene and gasoline fractions with an aromatic hydrocarbon content < 25%. For kerosene and aviation fuel. 120-200... 

Dissolved water is also present in the fuel. The amount of water solubility in fuel is related to the hydroearbon ehain length, the presence of an aromatic structure, and temperature. Shorter chain paraffins dissolve more water than the longer chain paraffins. Kerosene fuels are more susceptible to microbial attack because they have a greater capacity to absorb dissolved water than other fuel types. There is 1 part per million (ppm) of dissolved water in aviation kerosene fuel for every degree Celsius (C) above zero (Park, 1975). An aromatie hydroearbon ean dissolve five times more water than straight chain hydrocarbons. Chemicals used to treat fuel such as preservatives can also contribute to the dissolved water content. 

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