Experimental and modeling studies of the effects of different nanoparticles on asphaltene adsorption

Wettability alteration of oil‐wet carbonate rocks by chitosan derivatives for application in enhanced oil recovery

“…The interaction of asphaltene with specific EOR agents, such as metal oxide nanoparticles, has been discussed in the literature 28–32 . However, no reports were found on the interaction of asphaltenes with macromolecules in solution, although chitosan has been used to encapsulate organic molecules 33–36 .…”

“…The interaction of asphaltene with specific EOR agents, such as metal oxide nanoparticles, has been discussed in the literature. [28][29][30][31][32] However, no reports were found on the interaction of asphaltenes with macromolecules in solution, although chitosan has been used to encapsulate organic molecules. [33][34][35][36] TMC and TMC-C14 chitosan derivatives should be able to interact with asphaltenes from carbonate reservoirs oils through ionic pairs formation between the carboxylate groups present in the asphaltene molecules and the quaternary ammonium cationic groups from the derivatives forming a complex, or in the case of the TMC-C14 derivative, through hydrophobic interactions of its hydrocarbon chains with the linear chains commonly found in asphaltenes structures.…”

Transition metal oxide nanoparticles as surfaces for surface-assisted laser desorption/ionization mass spectrometry of asphaltenes

“…Transition metal oxide (TMO) nanoparticles possess distinctive properties such as large surface area-to-volume ratios, low porosity, high dispersion rates, high photo-absorption, and low heat capacities (Fernández-García and Rodriguez 2009). These unique properties of TMO nanoparticles make them viable and cost-effective surfaces (Pomerantz et al, 2015; Wu et al, 2014) for surface-assisted laser desorption/ionization (SALDI) mass spectrometry (MS) and adsorbents (Kazemzadeh et al, 2015a; Nassar et al, 2011a; Madhi et al, 2017) for asphaltene molecules. The use of TMO nanoparticles as surfaces for SALDI enhances analyte detection with minimal sample preparation as well as a significant reduction in low mass solvent peaks found in traditional MALDI experiments (Arakawa and Kawasaki 2010; Law and Larkin 2011).…”

Sulfated zirconium oxide-decorated magnetite KCC-1 as a durable and recyclable adsorbent for the efficient removal of asphaltene from crude oil

“…Metal oxide NPs, such as magnesium oxide and calcium oxide, also follow the Langmuir isotherm in asphaltene adsorption. 47 However, Al and Al 2 O 3 followed the Freundlich isotherm, 28 which indicates the nature of the NPs in asphaltene adsorption. 28,30,31 According to the measurement of asphaltene adsorption by Fe 3 O 4 @SiO 2 /KCC-1@ZrO 2 /SO 4 2À NPs, their adsorption kinetics can be predicted.…”

“…33 As shown in Table 2, the values of 1/n for both adsorbents for all three models were less than 1.0, which reects the desirability of the adsorption process. 33,47 In addition, by comparing the results of the correlation coefficient (R 2 values), it can be concluded that the Langmuir model has a more suitable range than the Freundlich and Temkin models, which means that the adsorption of asphaltene by both adsorbents occurs through the same mechanism as a single layer by uniform distribution of adsorption sites. This adsorption behavior for Fe 3 O 4 @SiO 2 /KCC-1@ZrO 2 /SO 4 2À is completely consistent with the published reports of asphaltene adsorption behavior on nanoparticles.…”