Results 91 to 100 of about 8,294 (210)

A Review of Asphaltenes: Composition, Structure, Properties, Behavior, and Applications

Engineered Science
Asphaltenes are the highly aromatic and polar fractions of crude oil defined by their insolubility in n-alkanes and solubility in aromatics. They exhibit complex molecular compositions, broad molecular weight distributions, and a strong tendency to self ...
Yerbol Tileuberdi, Ulan Kuoshiken, Yerdos Ongarbayev, Marat Tulepov, Nurgul Shadin, Dinara Sadirbekova, Laila Zhussupova, Yerzhan Imanbayev, Ainur Zhambolova   +8 more
doaj   +1 more source

Study of asphaltene reaggregation in toluene/heptane mixture by dynamic and static light scattering

Petroleum Research
This paper presents the study of the effect of multiple ultrasonic impacts on submicron asphaltene aggregates in a toluene/heptane solution, conducted with dynamic light scattering technique.
Vladimir N. Kuryakov
doaj   +1 more source

Removal of Asphaltenes using Ionic Liquid-Effect of Ionic Liquid on Asphaltenes Characteristics

, 2009
The objective of this project is to study the potential of ionic liquid in removing heavy, high molecular weight multi-ring aromatics, and/or resins, and/or polycyclic hetero atom - containing aromatics which is referred to collectively as asphaltenes ...
Farahnajwa Binti Amirrudin, Farahnajwa
core  

Characterization of asphaltenes from processed resids [PDF]

, 1997
The current and future trend for petroleum processing is towards conversion of heavier and heavier fractions into useful products such as gasoline and diesel.
Miller, J. T., Hunt, J. E., Winans, R. E.   +2 more
core  

The composition and thermal properties of waxes in oil asphaltenes [PDF]

, 2015
© 2015 Akadémiai Kiadó, Budapest, Hungary. Asphaltenes of four Russian and Kyrgyzstan crude oils were investigated with calorimetry, gas chromatography and X-ray diffraction analysis. It was established that asphaltenes contain waxes.
Samigullina A., Ganeeva Y., Gubaidullin A., Romanov G., Yusupova T.   +4 more
core  

Investigation of Asphaltene Stability in the Iranian Crude Oils [PDF]

Iranian Journal of Chemical Engineering, 2008
The influence of different factors on the asphaltene stability in three iranian crude oils was evaluated. Compositional studies and structural characterization of resins and asphaltenes were carried out in order to study a possible relationship between ...
doaj  

Combined effects of ultrasound and [bmim][cl] on heavy oil-solid separation: experiments and molecular dynamics simulations. [PDF]

Ultrason Sonochem
Zeng L, Wang X, Xu K, Du J, Tan Y, Tan P, Sun Y, Hou J.   +7 more
europepmc   +1 more source

Solvent Extraction for Heavy Oil from Carbonate AsphaltsExperiment and Molecular Dynamics Study. [PDF]

ACS Omega
Zhu H, Du J.
europepmc   +1 more source

Monitoring the Evolution of SARA Fractions During Asphalt Binder Aging by Automated HPLC and Correlation with FTIR Oxidation Indices. [PDF]

Materials (Basel)
Polacco G, Riccardi C, Leandri P, Losa M, Filippi S.   +4 more
europepmc   +1 more source

Electrochemical Impedance Spectroscopy for the Dielectric Characterization of Crude Oils and Their Maltene Fractions. [PDF]

ACS Omega
Dos Anjos MO, de Souza ES, da Silva TL, Melo RS.   +3 more
europepmc   +1 more source