Related Papers
Journal of Surfactants and Detergents
Synthesis and Evaluation of New Anionic Gemini Dispersants as Oil Dispersants to Treat Crude Oil Spill Pollution
2020 •
entsar badr
Journal of Molecular Liquids
A binary mixture of a biosurfactant and an ionic liquid surfactant as a green dispersant for oil spill remediation
2019 •
Muhammad Moniruzzaman
Journal of Environmental Science
Treatment of Spilled Crude Oil in Environment Using Environmentally Friendly Nonionic Tween Surfactants
2019 •
Nabel Negm
Application of new amphiphilic ionic liquid based on ethoxylated octadecylammonium tosylate as demulsifier and petroleum crude oil spill dispersant
Mahmood M . S . ABDULLAH, Hamad Al-Lohedan
This work reports the synthesis and application of amphiphilic ionic liquid (IL) in the petroleum field. The ionic liquid was synthesized by etherification of octadecylamine with tetraethylene glycol followed by quaternization with p-toluene sulfonic acid. The chemical structure was confirmed by NMR spectroscopy. The surface activity, aggregation, adsorption, and the solubility of the ethoxylated octadecylammonium tosylate were investigated. The interfacial parameters between IL aqueous solution and crude oil emulsions were determined from interfacial tension measurement. The results showed the dependence of interfacial tension on the concentration, crude oil emulsion composition and chemical structure of the prepared amphiphiles. The mechanism of aggregation and adsorption ethoxylated octadecylammonium tosylate was proposed and confirmed at different interfaces. The demulsification and oil spill dispersion efficiencies were investigated at different amphiphile concentrations. The performance of amphiphilic ILs revealed that their demulsification efficiency reached 100% and the settling time required for efficient separation decreased with increment of water contents of crude oil emulsions. Moreover, the prepared amphiphilic ILs achieved oil spill dispersion efficiency more than 80% at surfactant oil ratio (1:25).
Journal of hazardous materials
Formulation of crude oil spill dispersants based on the HLD concept and using a lipopeptide biosurfactant
2017 •
Witchaya Rongsayamanont
Solvent-free dispersants for crude oil spills were formulated based on the hydrophilic-lipophilic deviation (HLD) concept and using lipopeptides from Bacillus sp. GY19. The lipopeptides were recovered and concentrated from cell-free broth by foam fractionation and freeze-drying. They had good surface activity under varying temperatures, pH and NaCl levels. Moreover, the lipopeptides had low toxicity to copepods (LC50 1174mg/L) and whiteleg shrimp (LC50 1050mg/L). The characteristic curvature (Cc) of the lipopeptides showed that they were more hydrophobic (Cc 4.93) than sodium dihexyl sulfosuccinate (SDHS, Cc -0.92). The HLD equation was used to calculate the lipopeptide and the SDHS fractions in the dispersant formulations according to the equivalent alkane carbon number (EACN) of hydrocarbons and seawater salinity. The molar fraction of lipopeptides increased with increasing EACN. The lipopeptide-SDHS mixtures formed microemulsion Type III with specific hydrocarbons and crude oils....
Scientific Reports
Investigation the effect of different ionic liquids based-aryl imidazole on the onset precipitation of asphaltene
alaa ghanem
Precipitation and deposition of asphaltene are considered as catastrophic issues facing the petroleum industry. Asphaltene deposition mainly occurs at variety places such as formation pore spaces, pumps, pipelines, wellbore, wellhead, tubing, surface facilities and safety valves causing operational problems, production deficiencies and enormous economic losses. This work aims to study the effect of series of synthesized aryl ionic liquids (ILs) containing different alkyl chains, named as R8-IL, R10-IL, R12-IL, and R14-IL, on the onset precipitation point of asphaltene in crude oil. R8-IL, R10-IL, R12-IL, and R14-IL were synthesized with high yields (the yield varied between 82 and 88%) and characterized via different tools of analysis (FTIR, 1H NMR, and Elemental Analysis). Their Thermal Gravimetric Analysis (TGA) was investigated and showed a reasonable degree of stability. It was found that R8-IL (short alkyl chain) has the highest stability, while R14-IL (long alkyl chain) is the...
Transstellar journals
INFLUENCE OF TEMPERATURE, SALINITY, AND SALT EFFECT FOR DISPERSION OF OIL BY LECITHIN BLENDS ON SEAWATER
2022 •
TJPRC Publication
Treatment of oil spill disasters is until challenging concept in which the application of chemical dispersant is one of the accepted oil spill responses on a global level. Nowadays, its toxicity is also concerned regarding the survival of seawater ecosystems. This can be depressed by designing eco-friendly formulations of dispersants with their application in majorly all the water bodies having different environmental parameters like temperature, salinity, salt content, etc. In this study, Lecithin blended with Tween derivatives having different Hydrophilic-Lipophilic Balance (HLB) applied on the dispersion of High-density oil. Temperature (15oC-40OC) and salinity (34ppt and 36ppt) were applied for this study. NaCl, Na2SO4, and Na-benzoate, MgSO4, MgCl2 salts with artificial sea salt were used to compare the dispersion effectiveness of these blends. The interfacial activity and FT-IR of the formulated dispersants were also examined. With the US EPA's baffled flask test, lecithin-blends resulted in near-complete dispersion effectiveness. Salinity has a significant role (p < 0.05) to disperse the oil in seawater. Magnesium salts recorded more significant values (p < 0.05) regarding dispersant effectiveness of lecithin blends as compared to Sodium. The dispersion of oil in seawater rapidly forwarded by selecting such dispersants affected by the salt effect.
Designing Surfactant Formulations for Oil Recovery from a High Salinity Reservoir : Single-well Test
2016 •
Maura Puerto
A new method for synthesis of fatty acid amide using water-in-oil micro-emulsion has been studied in the present paper. Recently a method for the synthesis of erucamide has been reported using erucic acid and urea at atmospheric pressure, however, the drawback is poor color of the product and formation of byproducts due to high temperature processing. In the present study the stable micro-emulsion was prepared by optimization of the conditions which were obtained using 46 % (w/w) of iso-amyl alcohol, 40 % (w/w) of soy bean oil, 7 % (w/w) of surfactant (sodium lauryl sulphate) and 7 % (w/w) of water. The optimum conditions for above prepared erucamide were 1:4 molar ratio, 240 min reaction time, 115 C temperature with 20 ml microemulsion. The outcome of the present study is that we can improve upon this method to get yield comparable to any other commercial method with lighter colour and minimum formation of any side reaction product. Biocide and Preservative Boosting with Use of Che...
Journal of Molecular Liquids
Synthesis of novel water soluble poly (ionic liquids) based on quaternary ammonium acrylamidomethyl propane sulfonate for enhanced oil recovery
2017 •
Mahmood M . S . ABDULLAH
Journal of Molecular Liquids
Demulsification of heavy crude oil using new nonionic cardanol surfactants
2018 •
Mahmood M . S . ABDULLAH
