Performance of inhibitors on CaCO3 scale deposition in stainless steel &amp; copper pipe surface

Al‐Roomi, Yousef M.; Hussain, Kaneez F.; Al-Rifaie, Mohammed

doi:10.1016/j.desal.2015.07.028

Cited by 35 publications

(10 citation statements)

References 27 publications

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“…e formed crystals' morphology is also changed. Al-Roomi et al tested novel low molecular weight copolymers (termed as YMR-series polymers) prepared through reaction of maleic anhydride as a new generation scale inhibitor [10]. ey found that scale inhibition for steel and copper was up to 98%.…”

Section: Introductionmentioning

confidence: 99%

Raphanus sativus L. Extract as a Scale and Corrosion Inhibitor for Mild Steel in Tap Water

Vasyliev

Vorobyova

Zhuk

2020

Journal of Chemistry

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The Raphanus sativus L. ethanol extract was prepared by radish cake maceration in ethanol end tested as a scale and corrosion inhibitor of mild steel in tap water. Antiscalant efficiency was tested with electrochemical and thermal scaling techniques, and changes in hardness content were determined titrimetrically. No deposits were found on the metal surface at the extract concentration of 10 mL/L in chronoamperometry test, and scaling suppression was established 5 times in thermal scaling conditions. The linear polarization resistance technique was used to determine corrosion rate. Inhibition efficiency was found to be 75% in thermal scaling conditions. The formation of the surface film was responsible for both scaling and corrosion suppression on mild steel surface as was established with FT-IR spectroscopy and SEM. The surface film was found to contain polymerization products of isothiocyanates.

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Section: Introductionmentioning

confidence: 99%

Raphanus sativus L. Extract as a Scale and Corrosion Inhibitor for Mild Steel in Tap Water

Vasyliev

Vorobyova

Zhuk

2020

Journal of Chemistry

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“…In most cases, the scale-forming substances are apt to appear on heat-exchange surfaces. As the solubility of most scale-forming substances such as CaCO 3 decreases with increasing temperature, it is easy for scale-forming substances to form on heat exchange surfaces which have higher temperatures [4]. However, there are exceptions.…”

Section: Introductionmentioning

confidence: 99%

Formation and Inhibition of Calcium Carbonate Crystals under Cathodic Polarization Conditions

Sheng

Huang

et al. 2020

Crystals

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The formation of CaCO3 crystals on the cathode surface and the scale-inhibition performance of scale inhibitor 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA) on the cathode surface were studied by methods of solution analysis, gravimetric analysis, SEM, FTIR, and XRD techniques. They were then compared with the results of the formation and suppression of CaCO3 crystals in aqueous solution. PBTCA had a good solution-scale-inhibition performance and good lattice-distortion effects on CaCO3 crystals in solution, which could change the CaCO3 from calcite to vaterite and aragonite crystals. The solution-scale-inhibition efficiency exceeded 97% when the PBTCA concentration reached 8 mg/L. Under cathodic polarization conditions, the surface-scale-inhibition efficiency of the cathode and solution-scale-inhibition efficiency near the cathode surface both exceed 97% at polarization potential of −1V. The addition of PBTCA significantly reduced the amount of CaCO3 crystals formed on the cathode surface and had good surface and solution-scale-inhibition effect. However, the lattice-distortion effect of PBTCA on CaCO3 crystals disappeared on the cathode surface, and the resulting CaCO3 contained only calcite crystals. The high-scale-inhibition effect of PBTCA under cathodic polarization was mainly due to the inhibition of the formation of calcium carbonate crystals by PBTCA, and not because of the lattice distortion of CaCO3 crystals.

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“…Encrustation is a serious problem in numerous industrial processes and technologies such as water treatment [1][2][3] because this phenomenon results in lower heat transfer and pipe clogging [1]. Deposits readily form on solid surfaces when a solution is concentrated beyond the solubility limit of a dissolved sparingly soluble salt or when a solution containing an inverse solubility salt is in contact with a hot surface [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Anti‐Encrustation Additives on Zirconium Molybdate Hydrate

et al. 2020

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Anti-encrustation additives were mainly investigated in nitric acid solution with zirconium (Zr), molybdenum (Mo), and tellurium (Te) to prevent the encrustation of zirconium molybdate hydrate (ZMH). The ZMH generated by reaction crystallization of Mo and Zr as main fission products has a high adhesion property in spent nuclear fuel reprocessing. In addition, it is reported that Te, which is also one of the fission products, precipitates together with ZMH. Encrustation of precipitates containing Te was effectively prevented by adding molybdenum trioxide (MoO 3 ) crystals as an anti-encrustation reagent. The encrustation amount was found to be larger than that under the condition of only Zr and Mo without Te. Consequently, it was suggested that the high adhesion property of Te affected the encrustation amount of ZMH.

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Performance of inhibitors on CaCO3 scale deposition in stainless steel & copper pipe surface

Cited by 35 publications

References 27 publications

Raphanus sativus L. Extract as a Scale and Corrosion Inhibitor for Mild Steel in Tap Water

Raphanus sativus L. Extract as a Scale and Corrosion Inhibitor for Mild Steel in Tap Water

Formation and Inhibition of Calcium Carbonate Crystals under Cathodic Polarization Conditions

Effect of Anti‐Encrustation Additives on Zirconium Molybdate Hydrate

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