This study focuses on detailed characterizations of asphaltene fractions extracted from the Algerian Hassi-Messaoud oil field. It was found that asphaltenes are not completely soluble in toluene, instead two were obtained upon solubilizing heptane-precipitated neat toluene. Extensive toluene-soluble and insoluble carried out using elemental analysis, Fourier transform infrared (FTIR), thermogra...

The article describes the catalytic cracking of heavy oil residue in presence a finely dispersed catalyst. It was determined that processing high molecular weight hydrocarbons, catalysts are effective, which uniformly distributed volume raw materials and introduced into technological process form small particles. Coke tar mainly consists 27.00 wt.% asphaltenes, 60.00 polyaromatic hydrocarbons h...

The conversion or photo conversion of asphaltenes to polycyclic aromatic hydrocarbons (PAH’s) promoted by a laser source is analyzed using both experimental and theoretical methods. We propose that during measurements performed at an intermediate laser power, fragmentation to afford PAH’s and ring fusion to yield fused PAH’s (FPAH’s) may occur either within molecular clusters (resin case) or wi...

the organic deposition particularly asphaltenes has many detrimental effects on the oil industries, such as plugging in pipelines, wellbore and facilities and subsequently, considerable reduction in well productivity.asphaltenes are the most polar fractions, which they have been dispersed as colloidal clusters in crude oil. the accumulation of these clusters lead to the flocculation of colloids...

The scaling and modeling of the viscosity of suspensions of asphaltene nanoaggregates is carried out successfully taking into consideration the solvation and clustering of nanoaggragates, and the jamming of the suspension at the glass transition volume fraction of asphaltene nanoaggregates. The nanoaggregates of asphaltenes are modeled as solvated disk-shaped “core–shell” particles taking into ...

Asphaltenes are a class of high-density molecules obtained from crude oil. The implications of asphaltene stability within the oil matrix production affect the whole oil supply chain production. This reduces the oil recovery because of mobility changes in the reservoir [1]. So far, the experimental and theoretical investigations no have addressed discussions at electronic level regarding a nano...

The Taguchi design of experiments (DOE) approach is adopted here to evaluate the impact ofeffective factors such as nanoparticles type, nanoparticles to model solution mass ratio, asphaltenestructure, and temperature on asphaltene adsorption equilibrium. Herein, the toluene-asphaltenesolution model is applied. Three commercially nanoparticles (SiO2, Al2O3, and TiO2) are used.<...