Aplicación de conceptos clásicos de la Física en la práctica ingenieril. La ley de Stokes como herramienta conceptual en el análisis de procesos de deshidratación del petróleo

Delgado-Linares, José G.; Gutiérrez, Carlos Gutièrrez; Salazar, Franklin; Guevara, Mairis; Mercado, Ronald; Pereira, Juan Carlos

doi:10.1016/s0187-893x(13)73196-3

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…The density difference (Δρ) among the phases (water and oil) also favors the internal phase settling (water-in-crude oil emulsions). Although eq simplifies the scenario to a case of rigid sphere sedimentation in an infinite medium, it successfully represents the effect of some experimental/practical parameters (e.g., temperature, rotational speed) on the emulsion breaking process by physical and mechanical methods, such as heating and centrifugation where α is equal to 2 g /9, and g is the gravity constant.…”

Section: Water-in-crude Oil Emulsionsmentioning

confidence: 99%

Outlook on the Role of Natural Surfactants on Emulsion Stability and Gas Hydrate Antiagglomeration in Crude Oil Systems

et al. 2022

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Gas hydrates constitute a major flow assurance issue in the transportation of oil and gas from the reservoir to the point of sale via pipelines. They can reduce or arrest the hydrocarbon production in a short period of time. Gas hydrate mitigation strategies involve the application of surfactant-like molecules able to prevent the agglomeration of hydrate particles and thus reducing their tendency to plug the flowlines. Some crude oils, commonly referred to as nonplugging oils, show a natural hydrate antiagglomerant tendency. This property has been related to crude fractions, such as asphaltenes and acids that naturally behave as surfactants. Given that these natural surfactants play a key role in the stabilization of water-in-crude oil emulsions, it has been practically unavoidable to consider hydrate antiagglomeration as a phenomenon linked to the stability of crude oil emulsions. Although hydrate natural antiagglomeration is a result of complex mechanisms involving crude oil composition, physicochemical conditions of the system, and fluid dynamics, the concentration and interfacial activity of natural surfactants are paramount in understanding the whole antiagglomeration process.

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Section: Water-in-crude Oil Emulsionsmentioning

confidence: 99%

Outlook on the Role of Natural Surfactants on Emulsion Stability and Gas Hydrate Antiagglomeration in Crude Oil Systems

et al. 2022

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“…Higher education centers (universities and institutes) face an unavoidable challenge regarding the configuration of their curricula according to the demands of society (Delgado-Linares et al, 2013). At the university level, competency-based education predominates, through practical learning experiences and not only theoretical knowledge, but also procedural and attitudinal knowledge (Turcio-Ortega & Palacios-Alquisira, 2015) The learning of physics and chemistry triggers in the students more negative than positive emotions (Dávila, Cañada, Sánchez, & Mellado, 2016), being constructivism a theoretical framework of alternative reference for students to modify their deeply rooted traditional scientific concepts that are very difficult to modify (Bañas, Ruiz, & Mellado, 2011).…”

Section: Introductionmentioning

confidence: 99%

Uso de estrategias activas para el aprendizaje significativo de la física en estudiantes de la Universidad Nacional del Altiplano

Yabar-Pilco

Ferró-Gonzales

2022

Rev. revoluciones

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Los resultados del aprendizaje de la física en la educación universitaria presentan dificultades en la mayoría de los casos, especialmente en el desarrollo de competencias. En esta investigación se aplicaron estrategias metodológicas activas, a través de la prueba de diferencias apareadas se concluyó que con el método experimental se obtuvieron mejores resultados que con el aprendizaje basado en problemas en una muestra de 8 estudiantes, además de mejorar sus habilidades para el trabajo en equipo y capacidad desarrollo de una alta demanda cognitiva.

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“…So, focusing on Stokes' law, the lower the average droplet size of the emulsion, the lower the sedimentation rate; and the more viscosity the emulsion has, the lower the sedimentation rate [17]. This rule is fulfilled as long as bimodal emulsions are not considered.…”

Section: Introductionmentioning

confidence: 99%

Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions

Querol¹,

Barreneche

Cabeza

2017

Applied Sciences

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Storage stability is a very important parameter that has to be considered in the formulation of asphalt emulsions. When monomodal emulsions are formulated, Stokes' law is fulfilled, therefore the higher the viscosity the less sedimentation, or the lower average droplet size the less sedimentation. But when bimodal emulsions are formulated, this rule does not apply. In this paper, two types of different emulsions are formulated: monomodal emulsions and bimodal emulsions. Bimodal emulsions are a combination of one large bitumen size and a small one. For this study, hard penetration bitumens were used, B35/50 and B15/25, because they are the most difficult bitumen to emulsify and, consequently, the worst sedimentation values are expected. Once the emulsions are manufactured, they are diluted to a bitumen rate concentration of 60% and 70%. Results show that bimodal emulsions, although having lower viscosity than their monomodal counterparts, have higher storage stability.

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Aplicación de conceptos clásicos de la Física en la práctica ingenieril. La ley de Stokes como herramienta conceptual en el análisis de procesos de deshidratación del petróleo

Cited by 4 publications

References 7 publications

Outlook on the Role of Natural Surfactants on Emulsion Stability and Gas Hydrate Antiagglomeration in Crude Oil Systems

Outlook on the Role of Natural Surfactants on Emulsion Stability and Gas Hydrate Antiagglomeration in Crude Oil Systems

Uso de estrategias activas para el aprendizaje significativo de la física en estudiantes de la Universidad Nacional del Altiplano

Storage Stability of Bimodal Emulsions vs. Monomodal Emulsions

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