A Review on the Effects of Emulsions on Flow Behaviours and Common Factors Affecting the Stability of Emulsions

Lim, Jit Sen; Wong, S. F.; Law, Monica; Samyudia, Yudi; Dol, Sharul Sham

doi:10.3923/jas.2015.167.172

Cited by 71 publications

(35 citation statements)

References 23 publications

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“…For example, an increase in the porosity of PolyHIPEs (or internal phase volume of HIPEs -characteristic of HIPEs and PolyHIPEs corresponds to each other) reduces the density of PolyHIPEs and increases the emulsion viscosity. References for the relations; (a-i) (Pal and Rhodes, 1985;Farah et al, 2005), (a-g) (Karageorgiou and Kaplan, 2005;Owen et al, 2015Owen et al, , 2016, (a-e) (Kravchenko et al, 2018), (a-c) (Sušec et al, 2015;Kravchenko et al, 2018), (a-b) (Barbetta et al, 2005b;Owen et al, 2016), (a-f) (Cameron, 2005), (b-g) ( Barbetta and Cameron, 2004;Owen et al, 2016;Aldemir Dikici et al, 2019b), (c-i) (Zhou et al, 2019), (c-g) (Lin-Gibson et al, 2007;Huš and Krajnc, 2014;Aldemir Dikici et al, 2019b;Kovačič et al, 2019), (c-f) (Cameron, 2005), (c-n) (Lim et al, 2015), (d-b) (Pulko and Krajnc, 2012), (d-n) (Cameron, 2005), (e-g) (Kravchenko et al, 2018), (h-c) (Aldemir , (h-n) (Aldemir , (h-i) (Barnes, 1994), (i-n) (Lim et al, 2015), (j-i) (Fan et al, 2018;Zhou et al, 2019), (j-c) (Moglia et al, 2011;Paterson et al, 2018;Zhou et al, 2019), (j-n) (Fan et al, 2018), (k-h) (Aldemir , (k-f) (Cameron, 2005;Pulko et al, 2010), (k-n) (Carnachan et al, 2006;Aldemir Dikici et al, 2019b), (l-c) (Moglia et al, 2011), (l-f)…”

Section: Internal Phase (Dispersed Phase)mentioning

confidence: 99%

Basic Principles of Emulsion Templating and Its Use as an Emerging Manufacturing Method of Tissue Engineering Scaffolds

Dikici

Claeyssens

2020

Front. Bioeng. Biotechnol.

103

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Tissue engineering (TE) aims to regenerate critical size defects, which cannot heal naturally, by using highly porous matrices called TE scaffolds made of biocompatible and biodegradable materials. There are various manufacturing techniques commonly used to fabricate TE scaffolds. However, in most cases, they do not provide materials with a highly interconnected pore design. Thus, emulsion templating is a promising and convenient route for the fabrication of matrices with up to 99% porosity and high interconnectivity. These matrices have been used for various application areas for decades. Although this polymer structuring technique is older than TE itself, the use of polymerised internal phase emulsions (PolyHIPEs) in TE is relatively new compared to other scaffold manufacturing techniques. It is likely because it requires a multidisciplinary background including materials science, chemistry and TE although producing emulsion templated scaffolds is practically simple. To date, a number of excellent reviews on emulsion templating have been published by the pioneers in this field in order to explain the chemistry behind this technique and potential areas of use of the emulsion templated structures. This particular review focusses on the key points of how emulsion templated scaffolds can be fabricated for different TE applications. Accordingly, we first explain the basics of emulsion templating and characteristics of PolyHIPE scaffolds. Then, we discuss the role of each ingredient in the emulsion and the impact of the compositional changes and process conditions on the characteristics of PolyHIPEs. Afterward, current fabrication methods of biocompatible PolyHIPE scaffolds and polymerisation routes are detailed, and the functionalisation strategies that can be used to improve the biological activity of PolyHIPE scaffolds are discussed. Finally, the applications of PolyHIPEs on soft and hard TE as well as in vitro models and drug delivery in the literature are summarised.

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Section: Internal Phase (Dispersed Phase)mentioning

confidence: 99%

Basic Principles of Emulsion Templating and Its Use as an Emerging Manufacturing Method of Tissue Engineering Scaffolds

Dikici

Claeyssens

2020

Front. Bioeng. Biotechnol.

103

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“…Using this, it creates a large pressure drop between the injection and production well, leading to a loss of fluids. This type of emulsion is considered to be undesirable in the oil production processes (Rezaei and Firoozabadi 2014;Lim et al 2015). On the contrary, o/w emulsion has a very low viscosity that is very similar to water.…”

Section: Emulsion Conformance Controlmentioning

confidence: 99%

A comprehensive review of the chemical-based conformance control methods in oil reservoirs

Sagbana

Abushaikha

2021

J Petrol Explor Prod Technol

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The production of excess water during oil recovery creates not only a major technical problem but also an environmental and cost impact. This increasing problem has forced oil companies to reconsider methods that promote an increase in oil recovery and a decrease in water production. Many techniques have been applied over the years to reduce water cut, with the application of chemicals being one of them. Chemicals such as polymer gels have been widely and successfully implemented in several oil fields for conformance control. In recent years, the application of foam and emulsions for enhanced oil recovery projects has been investigated and implemented in oil fields, but studies have shown that they can equally act as conformance control agents with very promising results. In this paper, we present a comprehensive review of the application of polymer gel, foam and emulsion for conformance control. Various aspects of these chemical-based conformance control methods such as the mechanisms, properties, applications, experimental and numerical studies and the parameters that affect the successful field application of these methods have been discussed in this paper. Including the recent advances in chemical-based conformance control agents has also been highlighted in this paper.

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“…Entretanto, para que o transporte de óleos pesados/extrapesados na forma emulsificada seja viável, é necessário que as emulsões O/A produzidas sejam altamente estáveis. Em geral, a estabilidade de emulsões O/A depende de vários fatores, entre os quais destaca-se a presença de agentes emulsificantes/estabilizantes (Lim et al, 2015;Strassner, 1968;Tian et al, 2019).…”

Section: Introductionunclassified

Agentes emulsificantes aplicados à estabilização de emulsões o/a com intuito de melhorar o transporte de óleos pesados através das tubulações: Um estudo bibliométrico

Siqueira

Meneguelo

Araújo

2021

RSD

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A crescente demanda de energia associada ao declínio progressivo das reservas de óleos convencionais (óleo extraleves, leves e médios) têm estimulado a exploração de campos de óleos pesados e extra-pesados. Porém, por conta de diversas características intrínsecas destes óleos, explorá-los, transportá-los e refiná-los ainda são desafios a serem vencidos. Dessa forma, o presente trabalho teve como objetivo apresentar uma revisão bibliométrica sobre os principais agentes emulsificantes que vêm sendo empregados na estabilização de emulsões de óleo pesado em água (O/A), com fins de melhorar o escoamento desses óleos nas condições de superfície (fluxo em tubulações). A busca foi realizada utilizando as plataformas Science Direct, One Petro e Web of Science, inserindo as seguintes palavras-chaves: Heavy crude oil; Oil-in-water emulsion; Stability; Pipeline transportation. A abrangência temporal foi limitada em 10 anos (2011-2020) e, na sequência, os critérios de inclusão/exclusão foram aplicados, de modo a refinar a busca. Como resultado foi obtido um total de 18 artigos científicos. Dentre os países que apresentaram maior interesse no tema, podemos destacar a Índia, a Noruega, o México, a China, os Estados Unidos e o Irã. Em relação aos emulsificantes mais empregados na estabilização de emulsões O/A os surfactantes e as partículas sólidas foram os mais citados. Embora os surfactantes não iônicos tenham sido apontados como os mais eficientes, ainda são necessários estudos mais detalhados para entender o mecanismo de atuação destes agentes, bem como avaliar a capacidade destes compostos de estabilizar emulsões O/A em condições de escoamento em superfície.

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A Review on the Effects of Emulsions on Flow Behaviours and Common Factors Affecting the Stability of Emulsions

Cited by 71 publications

References 23 publications

Basic Principles of Emulsion Templating and Its Use as an Emerging Manufacturing Method of Tissue Engineering Scaffolds

Basic Principles of Emulsion Templating and Its Use as an Emerging Manufacturing Method of Tissue Engineering Scaffolds

A comprehensive review of the chemical-based conformance control methods in oil reservoirs

Agentes emulsificantes aplicados à estabilização de emulsões o/a com intuito de melhorar o transporte de óleos pesados através das tubulações: Um estudo bibliométrico

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