Mixed surfactant enabled EVA emulsion for PPD applications

Umoruddin, N. E. S.; Rosdi, M.R.H.; Ariffin, A.

doi:10.1080/01932691.2018.1469413

Cited by 12 publications

(7 citation statements)

References 10 publications

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“…Several studies have been conducted to observe the capability of EVA emulsions in providing good flowability and stability for sub-ambient applications. 25−27 For instance, Umoruddin et al 27 pinpointed that the stability and flow response of EVA emulsions at low temperatures were influenced by the surfactant system implemented in the formulation. Thus far, no further studies regarding the impacts of EG concentration in the EVA PPD emulsion toward the emulsion formation and freezing properties are reported.…”

Section: T H Imentioning

confidence: 99%

“…Nasir et al reported in their study that the incorporation of EG in EVA emulsions provides the best droplet protection against temperature change and also displays good antifreezing properties. Several studies have been conducted to observe the capability of EVA emulsions in providing good flowability and stability for sub-ambient applications. − For instance, Umoruddin et al pinpointed that the stability and flow response of EVA emulsions at low temperatures were influenced by the surfactant system implemented in the formulation.…”

Section: Introductionmentioning

confidence: 99%

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The Impact of Ethylene Glycol on Droplet Growth Inhibition in Ethylene Vinyl Acetate Emulsions

et al. 2020

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Pour point depressant (PPD) emulsion has been gaining attention in crude oil transportation owing to its potential to solve solidification issues that arise in cold climate environments. An emulsion system provides a wide range of temperature application that combines good shelf life and tunable thermal properties to tackle this problem. These features can be achieved by incorporating an antifreeze agent into the emulsion. One of the most commonly used antifreeze agents is ethylene glycol (EG). Hence, this study focuses on the thermal properties and droplet size growth of PPD emulsions that were aged in variable concentrations of EG solution. EG50 exhibited the lowest freezing temperature of −44 °C, while EG25 demonstrated the lowest vitrification temperature of −68.7 °C. The particle size of the emulsions underwent a significant reduction from 332.3 to 228.9 nm upon the stepwise EG concentration increment to EG50. However, when the concentration was increased to EG75, a slight increase in the emulsion particle size was observed with a recorded value of 237.8 nm. Thus, it is concluded that EG50 represents the optimum concentration for delivering the best freezing protection and producing a smaller droplet particle size.

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Section: T H Imentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Impact of Ethylene Glycol on Droplet Growth Inhibition in Ethylene Vinyl Acetate Emulsions

et al. 2020

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“…In a previous research, PMA was synthesized and used to improve the cold flow ability of diesel. The results showed that PMA has an excellent depression effect on diesel (Umoruddin et al, 2018;Soliman et al, 2018;Lemos et al, 2018;Wang et al, 2014). Unfortunately, in biodiesel, the single PMA copolymer often showed poor results.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pour Point Depressants Combined with Dispersants on the Cold Flow Properties of Biodiesel-Diesel Blends

Wang

Xue

et al. 2020

Preprint

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“…In a previous research, PMA was synthesized and used to improve the cold flow ability of diesel. The results showed that PMA has an excellent depression effect on diesel (Lemos et al, 2018; Soliman et al, 2018; Umoruddin et al, 2018; Wang et al, 2014). Unfortunately, in biodiesel, a single PMA copolymer with a low addition amount, often showed poor results (Chastek, 2011; Ma et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of Pour Point Depressants Combined with Dispersants on the Cold Flow Properties of Biodiesel‐Diesel Blends

Wang

Xue

et al. 2021

J Americ Oil Chem Soc

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Poor cold flow property is a major issue that hinders the application of biodiesel‐diesel blends. In this work, a series of methacrylate‐benzyl methacrylate‐N‐vinyl‐2‐pyrrolidone terpolymers (RMC‐MB‐NVP, R = C12, C14, C16, C18) was synthesized and used as the pour point depressants (PPD) for waste cooking oil biodiesel blends. To further improve their depressive effects, dispersants, including Tween (40, 60, and 80), Span (40, 60, and 80), phthalic acid esters (PAE), and fatty alcohol polyoxyethylene ether (FAPE; FAPE 5, FAPE 7, and FAPE 9), were optimized and combined with the C14MC‐MB‐NVP terpolymers. The effects of C14MC‐MB‐NVP terpolymers and combined PPD (PPDC) on the cloud point (CP), cold filter‐plugging point (CFPP), and pour point (PP) of biodiesel blends were studied. Here, results showed that the presence of dispersants can efficiently enhance the solubility and dispersibility of polymeric PPD in biodiesel blends; thus, the PPDC presents better depressive effects. Among them, C16MC‐MB‐NVP (5:1:1) combined with FAPE 7 dispersant at 4:1 mass ratio (PPDC‐FAPE 7) showed the best synergistic effect, and the CP, CFPP, and PP of B20 treated with 2000 ppm PPDC‐FAPE 7 decreased by 4, 10, and 19 °C, respectively. Moreover, differential scanning calorimetry, polarizing optical microscope, and rheological analyses were performed to rationalize the action mechanism of these PPD and dispersants in biodiesel blends.

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Mixed surfactant enabled EVA emulsion for PPD applications

Cited by 12 publications

References 10 publications

The Impact of Ethylene Glycol on Droplet Growth Inhibition in Ethylene Vinyl Acetate Emulsions

The Impact of Ethylene Glycol on Droplet Growth Inhibition in Ethylene Vinyl Acetate Emulsions

Effect of Pour Point Depressants Combined with Dispersants on the Cold Flow Properties of Biodiesel-Diesel Blends

Effect of Pour Point Depressants Combined with Dispersants on the Cold Flow Properties of Biodiesel‐Diesel Blends

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