Synthesis, characterization of polyaspartic acid-glycine adduct and evaluation of their performance as scale and corrosion inhibitor in desalination water plants

Migahed, M.A.; Rashwan, S. M.; Kamel, Mahmoud; Habib, Rasikh

doi:10.1016/j.molliq.2016.10.091

Cited by 92 publications

(34 citation statements)

References 47 publications

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“…Figure A shows the Nyquist plots of carbon steel in 0.5 M H 2 SO 4 with and without PASP/AEM at 25°C. The Nyquist plots revealed a semicircular shape, which indicated that the corrosion of the carbon steel in 0.5 M H 2 SO 4 was mainly controlled by a charge transfer process . In addition, the diameter of the semicircular shape increased with increasing PASP/AEM dose, which can be attributed to the adsorption of a larger number of inhibitor molecules on the carbon steel surface.…”

Section: Resultsmentioning

confidence: 89%

“…The Nyquist plots revealed a semicircular shape, which indicated that the corrosion of the carbon steel in 0.5 M H 2 SO 4 was mainly controlled by a charge transfer process. 35 In addition, the diameter of the semicircular shape increased with increasing PASP/AEM dose, which can be attributed to the adsorption of a larger number of inhibitor molecules on the carbon steel surface. Therefore, a protective adsorbent layer formed on the surface of the carbon steel, and this layer acted as an effective barrier against aggressive attacked by the acidic solution.…”

Section: Potentiodynamic Polarization Measurementsmentioning

confidence: 96%

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Synthesis of a polyaspartic acid/4‐(2‐aminoethyl) morpholine graft copolymer and evaluation of its scale and corrosion inhibition performance

Shi

Chai

et al. 2018

Polymers for Advanced Techs

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A novel modified polyaspartic acid polymer, polyaspartic acid/4‐(2‐aminoethyl) morpholine graft copolymer (PASP/AEM), was prepared through a ring‐opening reaction of polysuccinimide and 4‐(2‐aminoethyl) morpholine and characterized by 1H NMR. The scale inhibition performance of this copolymer and its ability to disperse Fe2O3 were investigated in static tests. Scanning electron microscopy and X‐ray powder diffraction were used to analyze the effects of PASP/AEM on scale formation. The performance and mechanism of corrosion inhibition by the synthesized copolymer were studied via weight loss measurements and electrochemical measurements. The results showed that PASP/AEM possessed outstanding scale and corrosion inhibition efficiencies and had potential for use as a green scale and pickling inhibitor.

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Section: Resultsmentioning

confidence: 89%

Section: Potentiodynamic Polarization Measurementsmentioning

confidence: 96%

Synthesis of a polyaspartic acid/4‐(2‐aminoethyl) morpholine graft copolymer and evaluation of its scale and corrosion inhibition performance

Shi

Chai

et al. 2018

Polymers for Advanced Techs

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“…At the same time, the cathode polarization curve and the anode polarization curve were significantly different from those of the blank group, indicating that HBP‐3 had inhibition effects on both the cathode process and the anode process. HBP‐3 was a mixed‐type inhibitor that can simultaneously inhibit the electrochemical corrosion of cathode and anode process …”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of PBTCA‐modified hyperbranched polyether corrosion and scale inhibitors

Wang

Chen

Zhang

et al. 2019

J of Applied Polymer Sci

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In this study, hyperbranched polyether (HBP) with terminal hydroxyl was synthesized from tetrahydrofuran and glycidol by cationic open-loop polymerization and then modified by 2-phosphono-butane-1,2,4-tricarboxylic acid to introduce carboxyl and phosphorus to improve corrosion and scale inhibition. The structure of the products (HBPs) was determined by FTIR and 1 H-NMR. The scale inhibition efficiency (E) of calcium carbonate and calcium sulfate reached 99.74 and 97.10% at a concentration of 20 mg/L. X-ray diffraction and scanning electron microscopy were used to examine crystal type and morphology. The addition of scale inhibitors can inhibit the growth of the calcium scale crystal and destroy the crystal structure. The corrosion inhibition rate of HBPs can reach 72.98% when dosage was 150 mg/L. Polarization curve showed that HBPs was a kind of mixed corrosion inhibitor. The adsorption of HBPs on the surface of carbon steel conformed to Langmuir adsorption, which formed physical adsorption film and inhibited the corrosion process.

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“…PASP is one of the commonly applied scale inhibitors. It has been widely applied in the oil and gas industry due to its good environmental and inhibition performance (Ajikumar et al 2005;Migahed et al 2016;Quan et al 2008;Thombre and Sarwade 2005). It is a non-phosphorous biodegradable polymer, showing excellence performance on CaSO 4 and CaCO 3 scales.…”

Section: Polyaspartic Acid (Pasp)mentioning

confidence: 99%

State of the art of synthetic threshold scale inhibitors for mineral scaling in the petroleum industry: a review

2019

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Inorganic scale deposits are a major water-related problem encountered in producing oil and gas wells. The harshness of scale deposits is dependent on the field operating conditions. Scale deposits can vary from mild scaling tendencies to extreme. In general, the scale deposit will cause a reduction in formation pores, declining productivity and eventually blockage of the wellbore and hence unexpected downtime if it is allowed to persevere. To overcome this, the productivity of an oil and gas well is ensured by handling scale deposits via removal or prevention methods. Scale prevention is the best and cost-effective method for handling scale deposits that ensures production continuity. Inhibition through "threshold" scale inhibitor treatment is the most common method that is proven to prevent or reduce likely deposits. This paper examines the art of synthetic scale inhibitors, in particular, threshold scale inhibitors in oil and gas production. It discusses the chemistry of those inhibitors, inhibition mechanisms, treatment methods and key properties for their applications. It also highlights the chemistry of the synthetic routes often used to produce them in the laboratory and/or industry. Finally, it highlights the environmental concerns for the applicability of threshold scale inhibitors.

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Synthesis, characterization of polyaspartic acid-glycine adduct and evaluation of their performance as scale and corrosion inhibitor in desalination water plants

Cited by 92 publications

References 47 publications

Synthesis of a polyaspartic acid/4‐(2‐aminoethyl) morpholine graft copolymer and evaluation of its scale and corrosion inhibition performance

Synthesis of a polyaspartic acid/4‐(2‐aminoethyl) morpholine graft copolymer and evaluation of its scale and corrosion inhibition performance

Synthesis and characterization of PBTCA‐modified hyperbranched polyether corrosion and scale inhibitors

State of the art of synthetic threshold scale inhibitors for mineral scaling in the petroleum industry: a review

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