شماره ركورد كنفرانس :
5041
عنوان مقاله :
Investigation of Asphaltene Adsorption –Desorption on Polymer-Maghemite Nanoparticles
Author/Authors :
B. Mirzayi Chemical Engineering Department - University of Mohaghegh Ardabili, Ardabil, Iran , M. Rasouli Chemical Engineering Department - University of Mohaghegh Ardabili, Ardabil, Iran , A. Nematollahzadeh Chemical Engineering Department - University of Mohaghegh Ardabili, Ardabil, Iran
كليدواژه :
Asphaltene , Polydopamine , Nanoparticles , Maghemite , Adsorption
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
In this study a nano-layer polydopamine (PDA) coated superparamagnetic maghemite nanoparticles (MNP) was applied to investigate the asphaltene adsorption-desorption behavior using model solutions. Fourier-transform infrared spectrum (FT-IR) spectroscopy of the polydopamine/MNP core/shell (MNP@PDA) before and after asphaltene adsorption was indicated the attachment of asphaltene molecules on the polymeric nano-adsorbent surface. The isotherms and kinetics of asphaltene adsorption process on the MNP@PDA was studied. The well prediction of asphaltene adsorption by Langmuir model inducated that adsorption occurs on a MNP@PDA surface by monolayer adsorption.Within the kinetic models, double-exponential is able to fit the experimental data well. The obtained results revealed that about 90% removal for aspahltene was happened within 30 min. The results of this study showed that we can use natural polymers for surface modification of nanoparticles and use it successfully for asphaltene adsorption from prepared asphaltene-toluene solution.
