He proposed that asphaltic compounds are made of flocs or aggregates of asphaltene protected by adsorbed resin and hydrocarbon materials, all dispersed in a hydrocarbon medium.
In microemulsion flooding, the reservoir is flooded with water containing a small percentage of surfactant and other additives such as hydrocarbon, medium-chain alcohol and brine.
The degradation of toluene by P. fluorescens was tested by incorporating different concentrations (0.02, 0.04, 0.06, 0.08 and 0.10%) of humic acids, extracted from peat moss, in a hydrocarbon degradation medium.
The final results were calculated with the respect to blank samples (hydrocarbon with medium, without microorganisms).
Inadequate time of extracting and vaporizing light and medium hydrocarbons caused low rate of mass transfer.
The higher pressure differential is caused by CO2 compression, which supplies opportunity of extraction of light and medium hydrocarbons from oil and dissolution of CO2 into the oil.
It is an aqueous highly functionalized, but essentially sulphur-free, mixture of light to medium hydrocarbons containing up to 30%% water.
After chemical analyses it was established that the final total quantity of polyaromatic hydrocarbons dissolved in medium was approximately 70 ng/ml.
In this paper we present a theoretical analysis of multicomponent adsorption dynamics of hydrocarbons into a medium-sized activated carbon.
In CO2 miscible flooding process, miscible displacement between oil and CO2 is caused by the extraction of light and inter-medium hydrocarbons into CO2 and dissolution of CO2 into oil (Okuno and Xu 2013; Wang and Pope 2001).
