Microwave demulsification of heavy crude oil emulsions: Analysis of acid species recovered in the aqueous phase

Silva, Elisângela B. da; Santos, Danielle Freitas; Brito, Mayara Paes de; Guimarães, Regina C. L.; Ferreira, Bianca; Freitas, Lisiane Santos; Campos, Maria Cecı́lia Vaz de; Franceschi, Elton; Dariva, Cláudio; Santos, Alexandre F.; Fortuny, Montserrat

doi:10.1016/j.fuel.2014.02.076

Cited by 45 publications

(19 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The radiation favors temperature elevation process by a non-conventional heating mechanism known as dielectric heating. Many works of demulsification have been focused on the effect of microwave irradiation to break emulsions [22][23][24][25][26][27]. Now, the most common technologies employed in petroleum industry are the combined use of heat and chemicals designed to neutralize and eliminate the effects of the emulsifying agents.…”

Section: Demulsificationmentioning

confidence: 99%

Ionic Liquids as Surfactants – Applications as Demulsifiers of Petroleum Emulsions

Martínez‐Palou¹,

Jorge²

2015

Ionic Liquids - Current State of the Art

View full text Add to dashboard Cite

Section: Demulsificationmentioning

confidence: 99%

Ionic Liquids as Surfactants – Applications as Demulsifiers of Petroleum Emulsions

Martínez‐Palou¹,

Jorge²

2015

Ionic Liquids - Current State of the Art

View full text Add to dashboard Cite

“…Com o intuito de promover a separação das fases água e óleo, foram realizados testes de quebra via aquecimento micro-ondas monomodo e multímodo. Este estabelecimento de síntese foi baseada em técnicas descrita por Silva et al 2013e Silva et al 2014 …”

Section: Síntese Das Emulsõesunclassified

Processamento De Emulsões De Petróleos Pesados via Micro-Ondas E Líquidos Iônicos: Efeito Do Par Aditivo/Etanol.

Silva¹,

Brito²,

Barbosa³

et al. 2015

Anais Do XX Congresso Brasileiro De Engenharia Química

View full text Add to dashboard Cite

RESUMO -O uso de líquidos iônicos e irradiação micro-ondas como desemulsificante de emulsões de petróleo tipo água/óleo representa um novo campo de estudo. O principal objetivo deste trabalho é investigar o efeito do par líquido iônico/etanol no processo de desemulsificação de emulsões de petróleo pesado via micro-ondas. Os resultados indicam a seleção de um solvente adequado pode facilitar a mistura do líquido iônico no petróleo bruto, produzindo melhores resultados de desemulsificação em menores concentrações.

show abstract

“…Nevertheless, these methods present several limitations as follows: (1) sedimentation, low demulsification efficiency; (2) centrifugation, easily causes too much loss of oil additives; (3) vacuum heating, high energy consumption; (4) filtration, limited processing ability; and (5) chemical methods, the oil can be easily polluted by the chemical demulsifier [7]. Over the recent years, several new demulsification methods have been developed, such as pulse electric field method [8], ultrasonic method [9], microwave method [10], and biological methods [11]. For emulsified lubricating oils polluted by water, the use of a single physical technique, such as vacuum heating, for rapid and efficient demulsification is difficult.…”

Section: Introductionmentioning

confidence: 99%

Dehydration of emulsified lubricating oil by three fields: swirl centrifugal field, pulse electric field and vacuum temperature field

et al. 2016

View full text Add to dashboard Cite

Lubricating oil can be easily polluted by water and emulsified, thereby negatively affecting the lubricating property. Meanwhile, wasted lubricating oil, a complex composition, presents high water content and exists with emulsion. A single technological method is difficult to be satisfied for efficient demulsification and dehydration of emulsified lubricating oil. In this paper, it is proposed that the swirl centrifugal field made by hydrocyclone, pulse electric field, and vacuum temperature field are coupled to achieve the oil's dehydration. Based on the theories, it is reasonable to use three fields for oil's demulsification. In the experiment of three-field dehydrating, the demulsification device is divided into two parts, namely, the coupled unit of pulse electric field and hydrocyclone, and the vacuum heating unit. The structure and size of the device were optimized through numerical simulation. With two modes of single field and three-field, the experiments were carried out. Results indicated that the use of three-field was more energy efficient and faster compared with the traditional vacuum heating method only.

show abstract

Microwave demulsification of heavy crude oil emulsions: Analysis of acid species recovered in the aqueous phase

Cited by 45 publications

References 52 publications

Ionic Liquids as Surfactants – Applications as Demulsifiers of Petroleum Emulsions

Ionic Liquids as Surfactants – Applications as Demulsifiers of Petroleum Emulsions

Processamento De Emulsões De Petróleos Pesados via Micro-Ondas E Líquidos Iônicos: Efeito Do Par Aditivo/Etanol.

Dehydration of emulsified lubricating oil by three fields: swirl centrifugal field, pulse electric field and vacuum temperature field

Contact Info

Product

Resources

About