Recoverable magnetic nanoparticles as hydrate inhibitors

Min, Jae; Kang, Dong Woo; Ahn, Young‐Ho; Lee, Wonhyeong; Cha, Minjun; Lee, Jae Woo

doi:10.1016/j.cej.2020.124461

Cited by 35 publications

(27 citation statements)

References 47 publications

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“…18−20 Pickering emulsions are stabilized by nanoparticles with a hydrophobic surface, which suppressed the induction time of hydrate nucleation 18 and prevented the agglomeration of hydrate particles. 19 In addition, numerous studies have developed biosurfactants to develop novel AAs. 13,21,22 In our previous work, 23 the hydrate formation characteristics in the presence of vitamin E succinate (vitamin ES) were investigated to evaluate its performance in dispersing hydrate particles in a liquid hydrocarbon stream.…”

Section: Introductionmentioning

confidence: 99%

“…The surfactant-based AAs have been studied but can cause environmental issues as a result of the toxicity nature and have drawbacks for recovering and reuse. Nowadays, the particle-type hydrate inhibitor has also been researched. − Pickering emulsions are stabilized by nanoparticles with a hydrophobic surface, which suppressed the induction time of hydrate nucleation and prevented the agglomeration of hydrate particles . In addition, numerous studies have developed biosurfactants to develop novel AAs. ,, In our previous work, the hydrate formation characteristics in the presence of vitamin E succinate (vitamin ES) were investigated to evaluate its performance in dispersing hydrate particles in a liquid hydrocarbon stream.…”

Section: Introductionmentioning

confidence: 99%

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Preventing Aggregation of Hydrate Particles during Transient Operations with Vitamin E Succinate

2022

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This study investigated the effect of vitamin E succinate (vitamin ES), which is environmentally benign, on its performance as a hydrate anti-agglomerant in static and transition flow operations. The inhibition performance of vitamin ES was evaluated with conventional surfactant systems, such as sorbitane monostearate (Span 60) and dodecyltrimethylammonium bromide (DTAB). Under static flow (continuous mixing) conditions, the addition of any surfactant resulted in faster nucleation compared to the absence of a surfactant (bulk water system) as a result of the formation of a water-in-oil emulsion. The addition of Span 60 resulted in a stable torque change during hydrate formation at a high mixing rate, but there was a sharp increase in torque and a risk of blocking at a low mixing rate. Moreover, the addition of vitamin ES resulted in the prevention of the agglomeration of hydrate particles along with promoting a stable torque at all mixing rates. Furthermore, vitamin ES formed a transportable hydrate slurry (containing small hydrate particles) under normal shut-in and restart conditions. The flowability of hydrate particles was maintained even during shut-in with hydrate formation and restart operations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preventing Aggregation of Hydrate Particles during Transient Operations with Vitamin E Succinate

2022

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“…Ersland et al (2010) used Magnetic Resonance Imaging (MRI) to provide evidence that in the presence of carbon dioxide a large portion of the methane hydrate was not dissociated into liquid water or ice, (at 8274 kPa while temperature never went below 276.75 K) and that only a partial fragmentation of some cage structures occurred with the exchange of methane and carbon dioxide molecules when carbon dioxide was injected into the hydrate sample. The general appliance of the methane-carbon dioxide interchange reaction is demonstrated in Figure 1.6.…”

Section: Gas Hydrates Structure and Propertiesmentioning

confidence: 99%

“…Bergeron et al, (2010) assumed it is possible to experimentally determine the mole fraction of the gas hydrate formed in the bulk aqueous phase during hydrate growth.…”

Section: Models Based On the Combination Of Mass Transfer And Chemicamentioning

confidence: 99%

“…Contrast methods working using assumption other than light adsorption or refraction are, then, predominantly well-suited to gas hydrates. Some subcategories of optical microscopy are Differential interference contrast (Min et al, 2020), Darkfield imaging (Delzeit;Blake, 2001), Fluorescence imaging (Bai et al, 2010), and Reflection microscopy (Touil et al, 2019).…”

Section: Optical Microscopymentioning

confidence: 99%

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Kinetic study on gas hydrate formation and dissociation.

Heidaryan¹

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Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide

et al. 2022

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Hydrate technology promoted the development of natural gas industry. Nanoparticles showed a broad prospect for hydrate technology because of their excellent mass and heat transfer characteristics. At an experimental temperature of 275.15 K and pressure of 5 MPa, silica nanoparticles and cetyltrimethylammonium bromide (CTAB) were used to investigate the characteristics (pressure drop, gas storage capacity, and formation rate). The experimental results showed that the higher the concentration of silica nanofluid, the shorter the induction time. Among the four silica nanoparticles concentration (0.1, 0.2, 0.3, and 0.5 wt%) tested in this work, the concentration of 0.3 wt% was optimal for the enhancement of CH4 hydrate formation. In the complex system composed of silica nanoparticles and CTAB, the surface of silica nanoparticles was positively charged by hydrolysis. The cationic active groups ionized by surfactants were aggregated to the surface of the particles under the Coulomb force. Methane molecules were gathered to hydrophobic groups by non‐polar adsorption, which was more conducive to hydrate formation. Compared to silica nanofluid, the total time for hydrate formation decreased by 66.2 %.

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Recoverable magnetic nanoparticles as hydrate inhibitors

Cited by 35 publications

References 47 publications

Preventing Aggregation of Hydrate Particles during Transient Operations with Vitamin E Succinate

Preventing Aggregation of Hydrate Particles during Transient Operations with Vitamin E Succinate

Kinetic study on gas hydrate formation and dissociation.

Kinetics of Methane Hydrate Formation in the Presence of Silica Nanoparticles and Cetyltrimethylammonium Bromide

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