Study on demulsifier crude oil interactions at oil-water interface for crude oil dehydration

Li, Zuoli; Chakraborty, Anirban; Fuentes, Jessica V.; Zamora, Edgar B.; Vázquez, F.; Xu, Zhenghe; Liu, Qingxia; Flores, César; McCaffrey, William C.

doi:10.1016/j.colsurfa.2021.127526

Cited by 27 publications

(10 citation statements)

References 32 publications

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“…These results indicated that the products prepared from EA and DPM formed a lower-strength interfacial film after their adsorption onto the oil–water interface, which made it easier for oil droplets to coalesce and aggregate. 24 In addition, when the mass ratio of EA to DPM was 2 : 1, the product was able to reduce the interfacial elastic modulus more substantially than at the other two ratios, which was also beneficial for the coalescence and aggregation of oil droplets. When the degree of cationicity was 0.3, the elastic modulus was only reduced to about 25 mN m −1 at a polymer concentration of 10 mg L −1 , which indicated that this low degree of cationicity was not conducive to the coalescence and aggregation of oil droplets.…”

Section: Resultsmentioning

confidence: 95%

Study on the structure–activity relationship of cationic polyacrylates for the treatment of oilfield produced water

Chen,

Wang,

Zhang

et al. 2024

RSC Adv.

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Section: Resultsmentioning

confidence: 95%

Study on the structure–activity relationship of cationic polyacrylates for the treatment of oilfield produced water

Chen,

Wang,

Zhang

et al. 2024

RSC Adv.

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“…Fortunately for dewatering processes, demulsifiers have the ability to compete with asphaltenes to alter the properties of the interface [34]. In practice, success of effective demulsifiers was found to correlate well with their efficiency in replacing the incompressible oil-water interfacial films [35].…”

Section: Resultsmentioning

confidence: 99%

Preparation and Examination of a Composite Demulsifier for Paraffin Base Oil

et al. 2022

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This study aimed to derive a new composite demulsifier for dehydration of highly emulgated oil with high paraffin content, reducing the emulsion stability. The main active substances are fatty acids of cotton steatite esterified with polyethylene glycol, as well as sulfanol, Sintanol ALM‐10, silica gel, and white spirit in certain proportions. Studies under laboratory conditions on the demulsification of oil from Ashysay field showed that the new composite demulsifier is a suitable reagent for the destruction of water‐oil emulsions. Sulfanol and Sintanol ALM‐10 confer washing and wetting effects on the mixture, and silica gel favors the adsorption of oil asphaltenes onto its surface.

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“…[12,13] Furthermore, there are ongoing morphogenetic studies that actively utilize the collapsed phenomenon of monolayers on water surfaces. [14] Meanwhile, highly uniform sheets of graphene oxide are obtained from aggregates present above the collapsed surface pressure of the Langmuir monolayers. [15] Recent reports indicate that perovskite structures, [16] commonly utilized in solar cell research, are spontaneously formed after the collapse of monolayers on water surfaces.…”

Section: Introductionmentioning

confidence: 99%

“…One example of research on DNA origami at the air/water interface involves the generation of one‐dimensional supramolecular polymers [12,13] . Furthermore, there are ongoing morphogenetic studies that actively utilize the collapsed phenomenon of monolayers on water surfaces [14] . Meanwhile, highly uniform sheets of graphene oxide are obtained from aggregates present above the collapsed surface pressure of the Langmuir monolayers [15] .…”

Section: Introductionmentioning

confidence: 99%

Creation of Quasi‐DNA Origami at the Air/Water Interface Using the Collapsed Mechanism of Langmuir Monolayer

Maeda,

Shioda,

Fujimori

2024

ChemistrySelect

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It has achieved the preparation of quasi‐deoxyribonucleic acid (DNA) origami using the techniques of organized molecular films. After the adsorption of DNA from the subphase onto a Langmuir monolayer of polymers containing diamino‐s‐triazine rings, the monolayer collapses owing to high surface pressure, resulting in the formation of a three‐dimensional folded structure of DNA. A homopolymer featuring a diamino‐s‐triazine ring and a copolymer containing 20 % long alkyl chains are used to form the Langmuir monolayer. A‐T base pairs of salmon testis‐derived DNA from the subphase are hydrogen‐bonded and adsorbed onto each Langmuir monolayer. Following the collapse of the Langmuir monolayer, the film height almost doubles, indicating the formation of a bilayer structure consisting of a bioadsorbed polymer monolayer, especially evident in copolymer‐collapsed films. During this period, the bioconjugated bilayer structure adopts a mesoscopic linear morphology within the plane. In this quasi‐DNA origami structure, the chirality in the DNA molecule is maintained, as evidenced by the circular dichroism (CD) spectra displaying a positive Cotton effect. These results correspond to the proposal of a new DNA morphology control technology.

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Study on demulsifier crude oil interactions at oil-water interface for crude oil dehydration

Cited by 27 publications

References 32 publications

Study on the structure–activity relationship of cationic polyacrylates for the treatment of oilfield produced water

Study on the structure–activity relationship of cationic polyacrylates for the treatment of oilfield produced water

Preparation and Examination of a Composite Demulsifier for Paraffin Base Oil

Creation of Quasi‐DNA Origami at the Air/Water Interface Using the Collapsed Mechanism of Langmuir Monolayer

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