BACKGROUND Heightened awareness of the health benefits of fish oil consumption has led to a great increase in the number of fish oil supplements available to the consumer. Therefore manufacturers are continually looking for ways to distinguish their products from those of competitors. Minimally refined or virgin fish oils provide a unique feature; however, petroleum hydrocarbon contamination fr...

Precipitation ofsolid paraffins is one ofthe most common problems in the oil industry, imposing high operating costs. There have been a great many efforts for the prediction <span style="font-size: 10p...

Petroleum products are highly complex chemical mixtures consisting predominantly of hydrocarbons. Their composition varies with source and intended use of the product. Virtually all are blended products that come into contact with man in a wide range of circumstances. Their toxicity for man is generally low and the use of additives rarely affects the toxicity of the final product. Because produ...

The industrial interest in petroleum compounds has generated large amounts of data for both pure components and mixtures of hydrocarbons. These data and the general similarity in molecular structure of the components have made it possible to develop reasonably precise methods for predicting thermodynamic properties of hydrocarbons over a wide range of conditions. When chemically dissimilar mixt...

Inverse gas chromatography (IGC) has become an accurate, reliable and fast method for the physicochemical characterization of polymers and their blends, fibers, modified silica and other surfaces, surfactants, as well as, commercial stationary phases and their mixtures and petroleum pitches, heavy residues of oil distillation. Possibilities of application of inverse gas chromatography in the ch...

As test substances we selected naphthalene, benzo[a]pyrene and anthracene. Benzo[a]pyrene was selected, as the most common PAH required for the determination, as it is a component of most PAH mixtures and a procarcinogen, and is usually determined as an individual target PAH substance (http://water.epa.gov/drink/contaminants/basicinformation/benzo-a-pyrene.cfm). Naphthalene and anthracene are s...

The processes of metal corrosion in water-oil mixtures depending on the level water mineralization, reaction environment, and ratio between volumes oil aqueous solutions at temperatures 20 oC 80 were studied. It is shown that corrosiveness medium against metals becomes higher with increasing mineralization acidic content decreasing pH temperature. rate significantly reduced presence oil. Increa...

In the present study, polystyrene (PS), low-density polyethylene (LDPE), high-density (HDPE), polypropylene (PP), and their mixture undergo intermediate isothermal pyrolysis at 450 °C, 500 550 600 °C inside a tubular semi-continuous reactor under an inert nitrogen atmosphere. The liquid pyrolytic oil samples recovered in each case were analyzed through gas chromatography-mass spectrometry (GC–M...

Rejuvenators improve the performance of reclaimed asphalt mixtures but relatively little is known about their long-term aging characteristics. This study evaluated effect four different rejuvenators on characteristics 100% mixtures. Rheological tests extracted bitumen revealed that tall oil-based rejuvenator showed highest reduction and petroleum-based lowest in stiffness binder long term. At l...

The diffusive transport of volatile organic compounds (VOCs) in the subsurface at petroleum spill sites can significantly affect vapor migration from sources to buildings and ground surface. Thus, knowledge of compound-specific vapor transport and bio-attenuation is of great interests to those who must identify risks and make corrective action decisions for petroleum spill sites. In this work, ...