Synthesis of Some Oil Spill Dispersants Based on Sorbitol Esters and Their Capability to Disperse Crude Oil on Seawater to Alleviate Its Accumulation and Environmental Impact

Al-Sabagh, A.M.; El‐Hamouly, S. H.; Atta, Ayman M.; El‐Din, M. R. Noor; Gabr, Moataz M.

doi:10.1080/01932690701341751

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…Surfactants usually have oil-soluble hydrocarbon chains and water-soluble groups, are partially soluble in both oil and water, and the free energy of the system is minimized when surfactants are present at the oil-water interface [6]. Surfactant blends show high dispersant effectiveness when compared with individuals, means synergistic agonistic interactions between surfactants [7,8] Nevertheless, not all surfactant compositions are suitable for consisting dispersants to disperse spilled oil effectively, and many of the effective ones have the drawbacks of being toxic and/or non-biodegradable [9]. During the 1970s and 80s, many countries resisted the use of dispersants.…”

Section: Introductionmentioning

confidence: 99%

Development of High Efficient and Low Toxic Oil Spill Dispersants based on Sorbitol Derivants Nonionic Surfactants and Glycolipid Biosurfactants

Song¹,

Liang²,

Zhang³

et al. 2013

JEP

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Dispersants, usually blending with several surfactants and a solvent, are used to enhance oil spill dispersion as small droplets in water column. Although there is growing acceptance of dispersants as a counter measure to marine oil spills around the world, the two major issues with the dispersants are their toxicity to marine life and dispersion effectiveness (DE) for crude-oil, especially for heavy oil. To develop more efficient and less toxic dispersants, two kinds of sorbitol derivant nonionic surfactant (polysorbate 85 and sorbeth-40 tetraoleate), two kinds of glycolipid biosurfactants (rhamnolipid and sophorolipid) and less toxic solvent ethylene glycol butyl ether were chosen in this study, and two dispersant formulations were optimized by uniform design methods. Effects of dispersant-to-oil ratio, temperature, salinity and pH on the performance of the two optimized dispersants were investigated. The two dispersants had high dispersion effectiveness (DE) for heavy crude oil, while both dispersants keep high DE at the dispersant-to-oil ratio below 1:25 and the temperature above 5 ℃. In addition, the two dispersants also performed well in a wide range of salinity and pH values. Finally, toxicity tests revealed that the two dispersants showed low toxicity to two kinds of fish (Danio rerio and Microgobius gulosus).

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Section: Introductionmentioning

confidence: 99%

Development of High Efficient and Low Toxic Oil Spill Dispersants based on Sorbitol Derivants Nonionic Surfactants and Glycolipid Biosurfactants

Song¹,

Liang²,

Zhang³

et al. 2013

JEP

View full text Add to dashboard Cite

show abstract

“…Dispersants blends show high dispersant effectiveness when compared with individuals, means synergistic agonistic interactions between dispersants [7]. Nevertheless, not all surfactant compositions are suitable for consisting dispersants to disperse spilled oil effectively, and many of the effective ones have the drawbacks of being toxic and/ or non-biodegradable [8].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterisation of Oil Spill Dipersants Based on Polyglycerol Nonionic Surfactants

et al. 2017

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DISPERSANTS, usually blended with several surfactants and a solvent, are used to enhance oil spill dispersion as small droplets in water column. Although there is growing acceptance of dispersants as a counter measure to marine oil spill around the world, the two major issues with the dispersants are their toxicity to marine life and dispersion effectiveness (DE) for crude oil. To develop more efficient and less toxic dispersants, three dispersants of hexaglycerol esters (hexaglycerol laurate, hexaglycerol myristate and hexaglycerol palmitate) non-ionic surfactants were prepared. Salinity at different temperatures of the three dispersants was investigated. They had high (DE) for studied crude oil. Emulsion stability was also examined and it was found that all the prepared surfactants were able to form stable emulsions and their stability was very high, extending for months.

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Synthesis and Evaluation of New Anionic Gemini Dispersants as Oil Dispersants to Treat Crude Oil Spill Pollution

Kandeel

El‐Din

Badr

et al. 2020

J Surfact & Detergents

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Floating petroleum oil spills on the marine ecosystem are generally associated with an escalation of serious environmental problems. This research aimed to synthesis five water‐soluble anionic Gemini dispersants to minimize the effect of floating petroleum oil spills on the marine ecosystem. Referring to the spacer type, these dispersant are classified into two categories: the first category is the three acyl amine Gemini dispersants of N,N′‐ diacyl, (distearoyl‐, dipalmitoy‐, and dimyristoyl‐) N,N‐′ sodium 2‐hydroxy 3‐propane sulfonate propane 1,3 diamine, denoted S, P, and M, and the second category is two alkyl amine Gemini dispersants of N,N′dialkyl ‐(dicetyl‐, and dilauryl‐) N,N′‐sodium 2‐hydroxy 3‐propane sulfonate propane 1,3 diamine, denoted C and L. Fourier transform infrared and 1H NMR spectroscopy, gel permeation chromatography, and elemental analysis were used to verify the chemical formula of the synthesized dispersants. The effectiveness of the synthesized dispersants was investigated as regards their dynamic interfacial tension, carbon–chain length, and hydrophilic–lipophilic balance. The dispersion efficiency of the synthesized dispersant was detected qualitatively and quantitatively using the screen test and Warren Spring Laboratory methods, respectively. Experimental outcomes showed that the maximum dispersion efficiency of 94.7 wt% was achieved by dispersant C at a dispersant\oil ratio of 1:20 at 25°C.

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Synthesis of Some Oil Spill Dispersants Based on Sorbitol Esters and Their Capability to Disperse Crude Oil on Seawater to Alleviate Its Accumulation and Environmental Impact

Cited by 6 publications

References 12 publications

Development of High Efficient and Low Toxic Oil Spill Dispersants based on Sorbitol Derivants Nonionic Surfactants and Glycolipid Biosurfactants

Development of High Efficient and Low Toxic Oil Spill Dispersants based on Sorbitol Derivants Nonionic Surfactants and Glycolipid Biosurfactants

Preparation and Characterisation of Oil Spill Dipersants Based on Polyglycerol Nonionic Surfactants

Synthesis and Evaluation of New Anionic Gemini Dispersants as Oil Dispersants to Treat Crude Oil Spill Pollution

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