Evaluation of stability and viscosity measurement of emulsion from oil from production in northern oilfield in Thailand

Juntarasakul, Onchanok; Maneeintr, Kreangkrai

doi:10.1088/1755-1315/140/1/012024

Cited by 12 publications

(13 citation statements)

References 7 publications

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“…Vigorous shearing and increment in the duration of shearing are required to disperse the discontinuous phase in the continuous phase and to stabilize the W/O emulsion. [55][56][57] In this study, vigorous dispersion led to a decrease in the droplet size of the dispersed phase and an increase in viscosity. The characteristics of the porous membrane were dependent upon the degree of dispersion of W/O (MEK and toluene) and the size of a water droplet in the emulsion because these factors are directly related to the viscosity, porosity, water vapor transmission, and air permeability of the membranes, as illustrated in Figure 5.…”

Section: Optimization Of Water Concentrationmentioning

confidence: 67%

Fabrication of durable hydrophobic porous polyurethane membrane via water droplet induced phase separation for protective textiles

Anjum

Son

et al. 2019

Textile Research Journal

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The demand for functional membranes with balanced waterproofness and with good water vapor transmission in wearable applications is increasing by the day. However, their low wear resistance, low moisture tolerance, complicated fabrication procedures, and high health risk limit their outdoor use. In this study, we fabricated a waterproof and breathable polyurethane porous membrane for a membrane outside/fabric inside wearable fabric through an effective and facile dry process called evaporation induced phase separation. The matrix of the polyurethane membrane was mainly modified by water droplets and diisocyanate crosslinking agents, which allow the resultant membrane to be porous and durable. The water vapor transmission of the polyurethane water in oil emulsion was efficiently enhanced by introducing a porous network incorporated with tiny water droplets in the polyurethane emulsion. The optimization method for the emulsion allowed the waterproof, breathable porous membrane to sustain a tensile load of 35 MPa with an abrasion resistance of 15,000 cycles. Notably, the optimized porous membrane tended to exhibit a high hydrostatic pressure of 3500 mmH2O, good breathability of 3000 g/m2 day, and excellent porosity of 65%, which suggests that evaporation induced phase separation is a facile method for designing the membrane. These promising results show that the waterproof and breathable porous membrane can compete with commercially available protective membranes and coatings because of its porosity, facile synthesis, low cost, non-swelling behavior, high stability, and commercial scale production.

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Section: Optimization Of Water Concentrationmentioning

confidence: 67%

Fabrication of durable hydrophobic porous polyurethane membrane via water droplet induced phase separation for protective textiles

Anjum

Son

et al. 2019

Textile Research Journal

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“…The H1 shows lower viscosity in comparison to other formulations due to low volume concentration of lipid content 5%(w/w) and higher concentration of continuous phase 65%(w/w) at lower concentration of surface-active agents:cosurfactant blend which is 15%(w/w) of PEG-laurate and 7.5%(w/w) polysorbate 80 and 7.5%(w/w) of propylene glycol. The increment in lipid content concentration which is cardamom oil: lauric acid (4:1) increases the viscosity of felodipine LPHNs formulations at a constant concentration of surfaceactive agents:co-surfactant blend is due to increase in volume concentration of nanocarriers that make colloidal dispersion system more resistant to flow and give pseudoplastic system (1,18) .The analysis of variance indicates a significant correlation between the lipid content and viscosity at level p > (0.05).…”

Section: Effect Of Lipid Content On the Viscosity Of Felodipine Lphns Formulations (H1-h9)mentioning

confidence: 97%

“…The H1 shows lower viscosity in comparison with other formulations due to low volume concentration of lipid content 5%(w/w) and higher concentration of continuous phase 65%(w/w) at lower concentration of surface-active agents:cosurfactant blend which is 15%(w/w) of PEG-laurate and 7.5%(w/w) polysorbate 80 and 7.5%(w/w) of propylene glycol. The reason for increment in viscosity as distilled water decrease is due to reducing the continuous phase volume that makes felodipine LPHNs closer to each other that are stabilized by steric forces due to the presence of the outer coat of PEG (1,18) . The analysis of variance indicates a significant correlation between the continuous phase and viscosity at level p > (0.05).…”

Section: Effect Of Distilled Water Content On the Viscosity Of Felodipine Lphns Formulations (H1-h9)mentioning

confidence: 99%

“…The viscosity values have the following ascending order for H6 < H9 at 20%(w/w):10%(w/w): 10%(w/w) of PEGlaurate:polysorbate 80 : propylene glycol respectively , upto 45%(w/w) of distilled water for H6, 22.5%(w/w):11.25%(w/w): 11.25%(w/w) of PEG-laurate:polysorbate 80 : propylene glycol respectively, upto 40%(w/w) of distilled water for H8, at a constant concentration of lipid content which is 15%(w/w). The increment in surface-active agents:co-surfactant blend concentration increases the viscosity of felodipine LPHNs formulations(H1-H9) at a constant lipid concentration is due to increase in volume concentration of nanoparticles that create dispersion medium more resistant to flow and improve medium viscosity (1,18) . The analysis of variance indicates a significant correlation between the continuous phase and viscosity at level p > (0.05).…”

Section: Effect Of Surface-active Agents:co-surfactant Blend On the Viscosity Of Felodipine Lphns Formulations (H1-h9)mentioning

confidence: 99%

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Rheological Investigation of Lipid Polymer Hybrid Nanocarriers for Oral Delivery of Felodipine (Conference Paper )#

Drais

Hussein

2022

IJPS

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The rheological behavior among factors that are present in Stokes law can be used to control the stability of the colloidal dispersion system. The felodipine lipid polymer hybrid nanocarriers (LPHNs) is an interesting colloidal dispersion system that is used for rheological characteristic analysis. The LPHNs compose of polymeric components and lipids. This research aims to prepare oral felodipine LPHNs to investigate the effect of independent variables on the rheological behavior of the nanosystem. The microwave-based technique was used to prepare felodipine LPHNs (H1-H9) successfully. All the formulations enter the characterization process for particle size and PDI to ascertain the colloidal properties of the prepared nanosystem then use coaxial rotational digital rheometer for rheological evaluation. The outcomes show that all felodipine LPHNs formulations (H1-H9) had a nanosize and homogenous structure that ascertain colloidal features of the nanodispersion system. The rheogram chart indicates that all of the felodipine LPHNs formulations (H1-H9) show pseudoplastic flow (non-Newtonian flow) that have shear-thinning property. The microwave-based method prepares felodipine LPHNs formulations (H1-H9) that show excellent physical texture that ascertains its ability as a technique for the preparation of nanoparticles. All of the felodipine LPHNs formulations (H1-H9) show pseudoplastic flow that supports the physical stability of the nanosystem.

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“…In petroleum chemistry, paraffins can cause waxy crude oil which is a complex mixture of many different components including paraffins, aromatics, resins, asphaltenes and other light hydrocarbons [1][2]. Among these components, the high molecular weight paraffins are responsible for the various problems encountered during production, transportation and storage of waxy crude oils [3].…”

Section: Introductionmentioning

confidence: 99%

Wax inhibitor performance comparison for waxy crude oil from Fang oilfield

et al. 2021

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In petroleum chemistry, waxy oil from paraffins can cause operating problems for oil production. The chemical method is used to remove by using chemicals or additives to prevent the wax problem. In this study, the performance of wax inhibitor are evaluated by the measurement of pour-point reduction and wax deposition of crude oil from Mae Soon area, Fang oilfield. Wax deposition is determined by cold finger technique. Wax inhibitors, hexane, Poly(maleic anhydride-alt-1-octadecene) (PMAO) and monoethanolamine (MEA) are mixed in oil sample at various concentrations. From the experiment, it is presented that hexane is used to reduce pour-point temperature up to 19.55 % and to reduce wax deposit up to 92.56 %. Moreover, MEA and PMAO have less effect on pour-point reduction. However, they have high efficiency to prevent wax deposition. PMAO provide the better wax deposition performance than MEA. The amount of wax deposit is lower at the same conditions. The percentage of wax deposit is from 39.19 % to 83.02 % for MEA and from 58.54 % to 88.51 % for PMAO. Furthermore, from the results, the preferred concentration of hexane can be at 10 % and PMAO can be 7500 ppm at low temperature or 5000 ppm for higher temperature. The results of this research can be applied to the practical way for wax deposition prevention operation in Mae Soon area in Fang oilfield to reduce the wax problem in the future.

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Evaluation of stability and viscosity measurement of emulsion from oil from production in northern oilfield in Thailand

Cited by 12 publications

References 7 publications

Fabrication of durable hydrophobic porous polyurethane membrane via water droplet induced phase separation for protective textiles

Fabrication of durable hydrophobic porous polyurethane membrane via water droplet induced phase separation for protective textiles

Rheological Investigation of Lipid Polymer Hybrid Nanocarriers for Oral Delivery of Felodipine (Conference Paper )#

Wax inhibitor performance comparison for waxy crude oil from Fang oilfield

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