Effect of Water Content and Tween 80 to the Stability of Emulsified Biodiesel

2013 ◽  
Vol 465-466 ◽  
pp. 191-195 ◽  
Author(s):  
Amir Aziz ◽  
Asraf Jusoh ◽  
Rizalman Mamat ◽  
A. Adam Abdullah
Keyword(s):  
Water Content ◽  
Tween 80 ◽  
Destructive Effect ◽  
Oil Emulsion ◽  
Long Term Stability ◽  
Three Phase ◽  
Oil In Water ◽  
The Stability ◽  
Water In Oil Emulsion ◽  
Emulsified Biodiesel

Emulsified biodiesel are often stabilized using a combination ratio water, biodiesel and surfactant in achieving stable emulsions. The objective of this study was to evaluate the long-term stability of three phase oil-in-water-in-oil (O/W/O) with respect to the water content and Tween 80. Biodiesel emulsions containing 5 mL, 10 mL and 15 mL water were produce with combination of 95 mL, 90 mL and 85 mL B20 (80 % diesel + 20 % biodiesel) and surfactant by using a mechanical stirrer machine. The experimental results show that increasing concentration of Tween 80 more than 1.5g gave destructive effect on water in oil emulsion stability. In addition, lowering concentration of water content contribute to low polydispersity of emulsion which produced the high emulsification stability.

Direct Observation of Splitting in Oil-In-Water-In-Oil Emulsion Droplets via a Microchannel Mimicking Membrane Pores

Langmuir ◽  
2017 ◽  
Vol 33 (49) ◽  
pp. 14087-14092 ◽  
Author(s):  
Kazuki Akamatsu ◽  
Koki Minezaki ◽  
Masumi Yamada ◽  
Minoru Seki ◽  
Shin-ichi Nakao
Keyword(s):  
Direct Observation ◽  
Oil Emulsion ◽  
Membrane Pores ◽  
Emulsion Droplets ◽  
Oil In Water ◽  
Water In Oil Emulsion

Janus membrane decorated via a versatile immersion-spray route: controllable stabilized oil/water emulsion separation satisfying industrial emission and purification criteria

2019 ◽  
Vol 7 (9) ◽  
pp. 4941-4949 ◽  
Author(s):  
Weifeng Zhang ◽  
Xiangyu Li ◽  
Ruixiang Qu ◽  
Yanan Liu ◽  
Yen Wei ◽  
...  
Keyword(s):  
Water Emulsion ◽  
Industrial Emission ◽  
Oil Emulsion ◽  
Highly Efficient ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water ◽  
Water In Oil Emulsion

A PANI–SiNP-decorated Janus membrane was fabricated for highly efficient stabilized oil-in-water and water-in-oil emulsion separation, meeting industrial purification standards.

Collagen fibers with tuned wetting properties for dual separation of oil-in-water and water-in-oil emulsion

2020 ◽  
Vol 8 (46) ◽  
pp. 24388-24392
Author(s):  
Guangyan Chen ◽  
Yanan Wang ◽  
Yujia Wang ◽  
Hanzhong Xiao ◽  
Xin Huang ◽  
...  
Keyword(s):  
Collagen Fibers ◽  
Oil Emulsion ◽  
Wetting Properties ◽  
Efficient Separation ◽  
Oil In Water ◽  
Water In Oil Emulsion

Tuning the wettability of materials is of significance in developing efficient separation materials.

Effect of the Surfactant Concentration on Sinking Electric Discharge Machining Performance with Water-in-Oil Emulsion as Dielectric

2011 ◽  
Vol 189-193 ◽  
pp. 3153-3157
Author(s):  
Yan Zhen Zhang ◽  
Yong Hong Liu ◽  
Ren Jie Ji ◽  
Bao Ping Cai
Keyword(s):  
Physical Properties ◽  
Electric Discharge ◽  
Surfactant Concentration ◽  
Emulsion Stability ◽  
Experimental Results ◽  
Machining Performance ◽  
Electric Discharge Machining ◽  
Oil Emulsion ◽  
The Stability ◽  
Water In Oil Emulsion

In this paper, the EDM performance of water-in-oil (W/O) emulsions dielectric with different surfactant concentration is investigated by correlated to its physical properties, such as viscosity and droplets size, which is predominantly determined by the surfactant concentration. Experimental results show that the stability of the W/O emulsions increases with increasing surfactant concentration, whereas the EDM performance deteriorates with increasing surfactant concentration. So, taking a comprehensively consideration of the emulsion stability and EDM performance, the concentration of surfactant must be appropriately selected.

scholarly journals Uji Stabilitas Sediaan Mikroemulsi Menggunakan Hidrolisat Pati (DE 35–40) Sebagai Stabilizer

2006 ◽  
Vol 3 (1) ◽  
pp. 8-21
Author(s):  
Mahdi Jufri ◽  
◽  
Effionora Anwar ◽  
Putri Margaining Utami
Keyword(s):  
Drug Delivery ◽  
Dosage Form ◽  
Tween 80 ◽  
Microemulsion System ◽  
Hydrophobic Drug ◽  
Dextrose Equivalent ◽  
Oil In Water ◽  
External Phase ◽  
The Stability ◽  
Made In

Various solubilization techniques have been developed to enhance the bioavailability of hydrophobic drugs. One of the solubilization techniques is preparation of microemulsion. Microemulsion is a potential carrier in drug delivery system because it has many advantageous characteristics. In this research, hydrophobic drug was made in a dosage form of oil in water (O/W) microemulsion using ketoprofen as a model and investigated the influence of adding starch hydrolisates with dextrose equivalent (DE) 35-40 in variety concentrations (0,0%; 1,5%; 2,0%; 2,5%) to the stability of this microemulsion system. This microemulsion consisted of isopropyl miritate as oil phase, tween 80 and lechitin as surfactants, ethanol as cosurfactant, propylene glycol as cosolvent, starch hydrolisates DE 35–40 as stabilizer, and water as external phase. The evaluation was stability test both phisically and chemically. The result showed that the stability of microemulsion system increased significantly by adding starch hydrolisates DE 35-40 at 2,5%.

Effects of surfactant molecular structure on the stability of water in oil emulsion

2021 ◽  
Vol 196 ◽  
pp. 107695
Author(s):  
Guangsheng Cao ◽  
Tong Du ◽  
Yujie Bai ◽  
Tingyuan Yang ◽  
Jize Zuo
Keyword(s):  
Molecular Structure ◽  
Oil Emulsion ◽  
The Stability ◽  
Stability Of Water ◽  
Water In Oil Emulsion

Dispersed Phase and Emulsification Conditions on the Stability of Water-in-Oil Emulsion

2017 ◽  
Vol 7 (1) ◽  
pp. 29-37
Author(s):  
Hulya Cakmak ◽  
Gozde Ela Gurpuz ◽  
Neslihan Bozdogan ◽  
Seher Kumcuoglu ◽  
Sebnem Tavman
Keyword(s):  
Dispersed Phase ◽  
Oil Emulsion ◽  
The Stability ◽  
Stability Of Water ◽  
Water In Oil Emulsion

scholarly journals WEATHERING EXPERIMENT ON SPILLED CRUDE OILS USING A CIRCULATING WATER CHANNEL

1995 ◽  
Vol 1995 (1) ◽  
pp. 435-422 ◽  
Author(s):  
Tsutomu Tsukihara
Keyword(s):  
Crude Oil ◽  
Water Content ◽  
Sea Water ◽  
Water Channel ◽  
Crude Oils ◽  
Oil Emulsion ◽  
Circulating Water ◽  
Water In Oil Emulsion

ABSTRACT Crude oil spilled in the sea is mixed with the sea water by the wind and waves resulting in increases in its water content and viscosity as time passes. We have constructed a small, transfer type circulating water channel of an elliptical cuit-track form. Using an attached circulating unit, together with a war tunnel, artificial waves are generated to enable simulation corresponding to the natural circumstances in the sea. The experiment disclosed the following results.Drastic changes in the properties (water content and viscosity) of the oil depend on the power of waves.Contrasting processes are observed between heavy and light crude oils during weathering.Heavy crude oils form a massive water-in-oil emulsion (mousse) with increases in both water content and viscosity.Light crude oils behave differently at summer sea temperatures,

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