Calcium carbonate scaling prevention by a green chemical inhibitor, gallic acid

Boumagoura, Manel; Ghizellaoui, Samira; Rhouati, Salah; Cheap‐Charpentier, Hélène; Horner, Olivier

doi:10.1111/wej.12690

Cited by 10 publications

(3 citation statements)

References 29 publications

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“…[32,33] In the case of Fe 2þ , the ligand (HPAA 2À ) forms two chelating rings with Fe 2þ , which effectively protects the metal from further corrosion. [34] First, the preparation of the rust conversion agent was confirmed by Fourier Transform Infrared Spectrum (FTIR). Then, the scanning electron microscope (SEM), X-ray diffraction (XRD), FTIR, and electrochemical impedance spectroscopy (EIS) analysis were used to study the rust conversion ability and corrosion resistance of rust conversion agent.…”

Section: Doi: 101002/adem202300045mentioning

confidence: 99%

Improvement Mechanism of Corrosion Resistance in a High‐Efficiency Binary Composite Rust Conversion Agent with Chelate Properties

et al. 2023

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In this study, the rust conversion coating that acts directly on the surface of rust layer, was studied from the preparation of rust conversion agents gallic acid (GA), 2‐hydroxyphosphonyl acetic acid (HPAA), and their compound (GA/HPAA), rust conversion effect and anticorrosive mechanism. Results show that 1) when GA and HPAA were combined to form GA/HPAA with a mass ratio of 2:1, the strengthening effect of rust conversion was observed, and a more complete, dense, and smooth covering film was generated on the rust surface. In this case, the corrosion current of GA/HPAA was reduced to 4.10 × 10−7 A cm−2, while the GA was 2.35 × 10−6 A cm−2 and HPAA was 2.16 × 10−6 A cm−2. 2) The mechanism of rust conversion and corrosion resistance can be expressed as that the chelation reaction can occur between the rust and rust conversion agent, which can generate new coordination covalent bonds O–Fe–O, P–O–Fe, and C–Fe–O. In this case, they can firmly lock the rust and prevent it from spreading further. Meanwhile, a highly cross‐linked dense anticorrosion protective film can be formed. Due to the presence of these chelating products, they can act as obstacles, prolonging the diffusion path of corrosive medium and slowing down the interaction with the metal matrix.

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Section: Doi: 101002/adem202300045mentioning

confidence: 99%

Improvement Mechanism of Corrosion Resistance in a High‐Efficiency Binary Composite Rust Conversion Agent with Chelate Properties

et al. 2023

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“…It is a proposed reductant in dilute chemical decontamination formulations due to its inherent stability against radiation degradation [57]. Gallic acid significantly slows down-scale formation and, thus, has been shown to be an effective scale inhibitor at very low concentrations [58]. It has a wide range of applications in the health, food, and pharmaceutical industries, in the manufacture of inks, paints, dyes, and also in cinematography [59].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition of Carob Pod Pulp (Ceratonia siliqua L.) on Carbon Steel Surface C38 in Hydrochloric Acid

et al. 2022

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The effect of C. siliqua pulp corrosion inhibition on carbon steel has been studied by gravimetric testing and electrochemical methods. In this study, two raw extracts were prepared from the pod pulp of C. siliqua: the first is methanolic and the second is aqueous. The UHPLC/DAD analysis indicated gallic acid's presence in the extracts (methanolic and aqueous) of C. siliqua as a major compound. The inhibition results achieved revealed that the aqueous extract with gallic acid had a good anticorrosion activity with an inhibition rate of 91.32% at 3 g/l for a temperature of 323 K. Potentiodynamic polarization was performed in 1 M HCl without and with different concentrations of C. siliqua extracts clearly proves that inhibitor extracts behave as mixed type. Adsorption of this inhibitor for different extracts studied on the surface of the carbon steel obeys Langmuir adsorption with negative values of ΔG • ads , suggesting a stable and spontaneous inhibition process.

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“…Polymers, such as polyacrylic acid (PAA) and sulfonated polymers, and copolymers containing sulfonated and phosphonated moieties are examples of organic SIs [16]. The primary aim of the chemical inhibitors is to sequester the calcium ion; therefore, they prevent it from reacting with carbonate or bicarbonate ions, which prevents calcium carbonate scale formation [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Studies of a Silica Functionalized Acrylamide for Calcium Scale Inhibition

et al. 2022

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The calcium carbonate (CaCO3) scale is one of the most common oilfield scales and oil and gas production bane. CaCO3 scale can lead to a sudden halt in production or, worst-case scenario, accidents; therefore, CaCO3 scale formation prevention is essential for the oil and gas industry. Scale inhibitors are chemicals that can mitigate this problem. We used two popular theoretical techniques in this study: Density Functional Theory (DFT) and Ab Initio Molecular Dynamics (AIMD). The objective was to investigate the inhibitory abilities of mixed oligomers, specifically acrylamide functionalized silica (AM-Silica). DFT studies indicate that Ca2+ does not bind readily to acryl acid and acrylamide; however, it has a good binding affinity with PAM and Silica functionalized PAM. The highest binding affinity occurs in the silica region and not the –CONH functional groups. AIMD calculations corroborate the DFT studies, as observed from the MD trajectory that Ca2+ binds to PAM-Silica by forming bonds with silicon; however, Ca2+ initially forms a bond with silicon in the presence of water molecules. This bonding does not last long, and it subsequently bonds with the oxygen atoms present in the water molecule. PAM-Silica is a suitable calcium scale inhibitor because of its high binding affinity with Ca2+. Theoretical studies (DFT and AIMD) have provided atomic insights on how AM-Silica could be used as an efficient scale inhibitor.

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Calcium carbonate scaling prevention by a green chemical inhibitor, gallic acid

Cited by 10 publications

References 29 publications

Improvement Mechanism of Corrosion Resistance in a High‐Efficiency Binary Composite Rust Conversion Agent with Chelate Properties

Improvement Mechanism of Corrosion Resistance in a High‐Efficiency Binary Composite Rust Conversion Agent with Chelate Properties

Corrosion Inhibition of Carob Pod Pulp (Ceratonia siliqua L.) on Carbon Steel Surface C38 in Hydrochloric Acid

Theoretical Studies of a Silica Functionalized Acrylamide for Calcium Scale Inhibition

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