Recent insights into the anomalous dual nature (both promotion and Inhibition) of chemical additives on gas hydrate formation

Nguyen, Ngoc N.; Nguyen, Anh V.

doi:10.1016/j.cej.2023.146362

Cited by 14 publications

(2 citation statements)

References 167 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among the various types of gas hydrate formers, hydrates containing H 2 S are formed at relatively lower pressures and remain stable at higher temperatures . Gas hydrate formation can pose significant challenges to the safety of gas transportation facilities, potentially causing disruptions in operations and leading to significant financial consequences. − …”

Section: Introductionmentioning

confidence: 99%

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Chen,

Farhadian,

Iravani

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

Sour gas reservoirs represent significant sources of energy with substantial development potential, playing a vital role in enhancing energy security and diversity. However, the production and processing of sour gas pose serious challenges as a result of its corrosive nature. The literature reveals a lack of efficient green inhibitors for sour media, because traditional inhibitors often raise environmental concerns. Here, sunflower oil was employed to develop novel quaternary ammonium salts based on pyrrolidine (PyQAs) and piperidine (PiQAs), serving as highly biodegradable and effective sour corrosion inhibitors. The synthesis process involved a straightforward two-step reaction under mild and solventfree conditions. Experimental results demonstrated a remarkable 95% reduction in the corrosion rate in the presence of PyQAs and PiQAs. PiQAs exhibited higher performance, achieving a remarkable 95.2% inhibition efficiency at a concentration of 70 × 10 −5 M. Quantum calculations indicated that PiQAs, with its narrower band gap and enhanced electron transfer ability, emerged as a more effective inhibitor. Moreover, the molecular structures of PyQAs and PiQAs, particularly the electron-donating alkyl chains and the ester groups, facilitated their adsorption onto the steel surface. The inhibition mechanism was attributed to the formation of a dense film on the mild steel surface, which hindered the transport of corrosive ions and decreased the electrochemical reactions associated with corrosion. Atomic force microscopy images showed that the addition of PyQAs and PiQAs significantly reduced the surface roughness. Furthermore, both PyQAs and PiQAs were highly biodegradable, with biodegradation degrees of 57.8 and 53.1%, respectively, highlighting their environmental compatibility. These compounds offer a promising balance of corrosion inhibition performance and biodegradability, making them attractive alternatives to traditional inhibitors for industrial applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Chen,

Farhadian,

Iravani

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…Natural gas hydrates are a widely distributed clean energy source [1,2]. With the successful test mining of marine sediment hydrates in China, gas hydrates are expected to become a new generation of energy to displace oil, coal, and conventional gas.…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Concentrations of NiMnGa Micro/Nanoparticles on the Kinetics of Natural Gas Hydration

Zhao,

Wu,

et al. 2023

Processes

View full text Add to dashboard Cite

To improve gas hydrate storage and transportation technology, ferromagnetic intermetallic compound NiMnGa particles with martensitic transformation endothermics were used to form micro/nanofluids with sodium dodecyl sulfate (SDS) to further strengthen the gas hydration process. In this work, the kinetic process of gas hydration in NiMnGa fluids with different concentrations (0, 0.1, 1, 2, and 3 wt.%) was investigated using a rotating magnetic field gas hydration separation experimental setup. The results show that the induction time of the 3 wt.% NiMnGa system was shortened by 98.3%, the gas consumption was increased by 50.5%, and the gas consumption rate was increased by 351.9% compared with the SDS system. Therefore, it is inferred from the mass transfer that NiMnGa micro/nanofluids can accelerate the formation of hydrates.

show abstract

Evaluating the impact of sodium chloride and iron carbonate ions on gas hydrate formation in Monoethylene Glycol‐enhanced aqueous solutions

Bloomfield,

Phan,

Mohammed

et al. 2024

Asia-Pacific J Chem Eng

View full text Add to dashboard Cite

The management and prevention of hydrates are crucial for the gas industry. This study delves into the intricate challenges associated with gas hydrate formation, with a specific focus on investigating the impact of corrosion by‐products on prevention strategies. Employing a distinctive methodology, the sapphire pressure–volume temperature (PVT) cell was utilized. Experimental tests were conducted using sodium chloride (NaCl) concentrations of 1% and 3% to simulate brine solution levels at the wellhead, incorporating 3% filtrate and unfiltered iron carbonate (FeCO3) as corrosion products associated with the production process. The 1% and 3% salt concentrations were chosen to encompass a broad range of temperature depressions, reflecting common industry standards for simulating realistic environmental conditions. PVT cell test conditions ranged from 80 to 200 bar, with increments of 40 bar. The experiments investigate the effects of common pipeline salts on a monoethylene glycol (MEG)/water mixture in the presence of methane gas at typical industry high‐pressure conditions. The investigation uncovers that the introduction of salts to water, methane, and MEG solutions serves as a hydrate inhibitor, with inhibitory effects directly correlated to salt concentration. While generally hydrate growth inhibition is beneficial in natural gas pipelines, the findings indicate that elevated salt concentrations and lower pressure conditions contribute to the formation of larger hydrates, heightening the risk of surface adhesion and potentially introducing complications in piping equipment, despite the decreased temperature at which these hydrates form due to the inhibitory effects of the salts. In particular, the mixed condition of 3% NaCl and 3% FeCO3 (filtered) has the strongest effect. Examination of hydrate formation temperature and macroscopic observations suggests that the existence of substantial precipitates, as evidenced in the unfiltered FeCO3 sapphire cell experiment, may have the potential to enhance hydrate growth.

show abstract

Recent insights into the anomalous dual nature (both promotion and Inhibition) of chemical additives on gas hydrate formation

Cited by 14 publications

References 167 publications

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Effect of Different Concentrations of NiMnGa Micro/Nanoparticles on the Kinetics of Natural Gas Hydration

Evaluating the impact of sodium chloride and iron carbonate ions on gas hydrate formation in Monoethylene Glycol‐enhanced aqueous solutions

Contact Info

Product

Resources

About

Recent insights into the anomalous dual nature (both promotion and Inhibition) of chemical additives on gas hydrate formation

Cited by 14 publications

References 167 publications

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO2- and H2S-Saturated Oilfield-Produced Water

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO2- and H2S-Saturated Oilfield-Produced Water

Effect of Different Concentrations of NiMnGa Micro/Nanoparticles on the Kinetics of Natural Gas Hydration

Evaluating the impact of sodium chloride and iron carbonate ions on gas hydrate formation in Monoethylene Glycol‐enhanced aqueous solutions

Contact Info

Product

Resources

About

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water

Highly Biodegradable Corrosion Inhibitors Derived from Sunflower Oil for Mild Steel Corrosion in CO₂- and H₂S-Saturated Oilfield-Produced Water