Waterborne polymers as kinetic/anti-agglomerant methane hydrate and corrosion inhibitors: A new and promising strategy for flow assurance

Development of a Novel Thermally Stable Inhibitor Based on Furfuryl Alcohol for Mild Steel Corrosion in a 15% HCl Medium for Acidizing Application

“…DFT calculations were carried out by the Dmol module of Material Studio program using the GGA-BLYP exchange-correlation functional . Double numeric quality with a polarization (DNP) basis set with the conductor-like screening model (COSMO) implicit solvent (water, dielectric constant 78.54) was utilized for the computations.…”

“…Low-cost mild steel (MS) is considered as an important structural component in many industrial applications because of its outstanding properties such as good ductility, high tensile, and impact strength. − However, MS is prone inherently to be corroded in corrosive environments, especially acidic solutions . Corrosion is a major problem for the oil and gas industry as it represents a significant portion of the total costs of oil and gas companies every year worldwide.…”

“…Although complete prevention of corrosion is impossible, it can be controlled using effective corrosion inhibitors (CIs). − CIs are chemical compounds that reduce the corrosion rate of metals at low concentrations when they are added to corrosive environments. They can be used in transportation, construction, energy, and industries owing to their economic efficiency and strong versatility. , Heteroatoms (such as N, O, P, and S), heterocycles, multiple bonds, and aromatic rings are the most important electron-rich groups in the structure of organic CIs that cause the adsorption of their molecules on the surface of metal and protect it against corrosive species in the medium. ,− In other words, the replacement of CIs with water molecules on the metal surface leads to the blocking of active sites for redox reactions and thus inhibits the transfer of water and corrosive ions on the metal surface. , The molecular properties of CI molecules, such as steric factors, aromaticity, chain length, functional groups, electronic structures, cross-linking ability, and solubility have a significant impact on their adsorption behavior . Due to the low biodegradability of traditional CIs such as mercury salts, chromate, phosphorus-containing compounds, and the majority of organic molecules, it is critical to develop new eco-friendly inhibitors. − In recent years, CIs based on bio-sources such as carbohydrates, vegetable oils, amino acids, and plant extracts have been studied to address this issue. ,− Furfuryl alcohol as another renewable substance derived from furfural has also been investigated as a CI in acidic solutions. − Although the inhibition performance of bio-based CIs has been evaluated for corrosion inhibition of various metals, their main challenge is poor inhibition efficiency at high temperatures. , It should be noted that the temperature is over 353 K during some acid stimulation operations, which considerably increases the corrosive potential of the environment toward technological structures based on steel.…”

Dual-Function Synergists Based on Glucose and Sucrose for Gas Hydrate and Corrosion Inhibition

“…56 A possible solution to overcome this problem is to design a single molecule that can inhibit both corrosion and hydrate formation, simultaneously. 31,57,58 Another option is to add a proper synergist to KHI formulation for preventing corrosion and improving hydrate inhibition performance. In the present research, we designed two green synergists based on glucose and sucrose to enhance the performance of PVCap-based KHIs and to reduce corrosion.…”

Corrosion inhibiting performance of novel imidazolium‐based ionic liquids as an efficient and green corrosion constraint for carbon steel in neutral chloride solution

“…[6,7] Using corrosion inhibitors is one of the useful approaches to protect metal materials and control unpleasant corrosion. [8][9][10] Corrosion inhibitors' key advantages are high efficiency at even a small dose, quick response, low cost, and simple work-up process in the absence of any equipment and function change. [11][12][13] Most of the corrosion inhibitors work by getting adsorbed and obstructing the active sites of corrosion on the metal surface and diminish the rate of either a cathodic reduction, anodic oxidation, or both.…”