... dynamic simulation. The adsorption of APs on the surface of N80 steel obeyed Langmuir isotherm. Potentiodynamic polarization study confirmed that inhibitors are mixed type with cathodic predominance. Molecular dynamic simulation was applied to search for most stable configuration and adsorption energies...

.... Langmuir adsorption and desorption has been recently used to form a method of evaluating the impact of the loss of availability of a corrosion inhibitor. The adsorption-desorption analysis allowed quantitative assessment of loss of availability. In this paper, a water-soluble corrosion inhibitor...

... ABSTRACT We have performed all-atom classical molecular dynamics simulations of aggregation and adsorption of different corrosion inhibitor molecules on metal surfaces. We report free energies of aggregation and adsorption of imidazolinium-type (henceforth referred to as imid) and quaternary...

...) was clearly observed for mild steel, along with a lower corrosion rate, for both BAILs at 25°C. The BrØnsted acidity of these BAILs is not proportional to the corrosion rate of the tested mild steel specimens. In addition, the different adsorption centers on each BAIL molecule, namely their sulfonate group...

... flowline corrosion riser corrosion Pipeline Corrosion Upstream Oil & Gas adsorption corrosion rate capacitance concentration higher nacl concentration texas 77084 US government NaCl concentration resistance co 2 permission different nacl concentration reaction order dissolution Charge...

... ABSTRACT The relationship between corrosion inhibitor adsorption and micellization processes of different types of inhibitor molecules has been evaluated using a recently developed experimental approach. The approach involved integrating the following experimental methodologies - Capacitance...

..., as well as the wall shear stress increases for the adsorption-type inhibitor. However, for the higher wall shear stress, due to the high baseline corrosion rate, it is impossible to reduce the corrosion rate to the ideal value even if the concentration of the inhibitor is too high. If the corrosion...

... concentration (CO 2 and H 2 S) and amine adsorption, which are likely different for different systems. Therefore, characterization of the effect of the triazine/H 2 S reaction processes on the surface properties of steel is an important factor that needs to be explored. In this paper, we seek to understand...

... ABSTRACT A novel experimental methodology for investigating the relationship between corrosion inhibitor adsorption and micellization processes was developed and implemented using typical components of commercially available corrosion inhibitors for oil and gas applications (e.g., quaternary...

... ABSTRACT Adsorption and desorption of a product is an important factor in the assessment of availability requirements for a corrosion inhibitor in a given system. Corrosion inhibitors that have film persistence can allow the safe operation of a corrosive oil and gas system for some time...

... forces of inhibitor films. The objective of this work is to understand the adsorption/desorption process of 1-(2- aminoethyl)-2-oleyl-2-imidazolinium chloride on carbon steel. In order to study adsorption of imidazolinium chloride on carbon steel, in-situ atomic force microscopy (AFM) measurements were...

... Publication Division composition manuscript small molecule corrosion inhibitor Corrosion Management adsorption metal surface coating reaction concentration Chemical Structure permission nanomaterial Polymer and Nanomaterial Based Inhibitors: Stimuli-Responsive Rigoberto C. Advincula Department...

... Abstract Ion release and bovine serum albumin (BSA) adsorption on AISI 316L (UNS S31603) electrodes was investigated by performing cyclic voltammetry experiments and electrochemical quartz crystal microbalance (EQCM) analyses simultaneously. The quartz crystals were immersed in phosphate...

... isotherm model. This indicates the existence of multiple sites available for adsorption. Introduction Waste waters consisting of heavy metals ions have permanent toxic effect. Chemical precipitation, ion exchange, adsorption, membrane separation and electrodialysis can be used to remove heavy metals...

... inhibition efficiency from weight loss studies was evidenced in both the acid medium, furnishing an inhibition efficiency of more than 80 %. The inhibition effect results from the adsorption of the inhibitor molecule via the lone pair of electrons on the hetero atoms together with the adjacent aromatic ring...

.... EIS measurement predicted the physical adsorption of both MVI and MCI on the metal surface from PZC calculation. Polarization studies proved that the inhibitors retard both the electrode process during inhibition. The integrity of the inhibitors efficiency with respect to time was assessed from mass...

... adsorption particle suspension dosage manuscript stabilization Houston dispersion ZP value Iron Oxide Colloidal Suspension Stabilization by Polymeric Dispersants Stamatia G. Rokidi and Petros G. Koutsoukos University of Patras, Chemical Engineering Dept. and Foundation of Research & Technology...

... investigated the interactions of several oil and gas biocides in the presence of subsurface rock matrices (Berea sandstone). The effect of the rock on biocide adsorption was determined analytically and the resulting impact on residual efficacy was assessed by microbial viability. Certain actives were more...

... microscopy (SEM). The results were interpreted based on the surface charge and provided key information about the possible mechanisms of adsorption amines (DEA and morpholine) on the steel surface. Results showed that the effect of the selected amines on the corrosion rate could be directly linked...

... in our experiments, show that PAA is a more effective inhibitor than CMI-15, CMI-20, CMI-25, PMAA, and LS. The fit of the adsorption model to the experimental data supports a mechanism of inhibition through molecular adsorption of polymers on the surface of growing crystals. paa enhanced...