Perspectives of Ionic Liquids Applications for Clean Oilfield Technologies

Martínez‐Palou, Rafael; Sánche, Patricia Flores

doi:10.5772/14529

Cited by 22 publications

(22 citation statements)

References 306 publications

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“…[114,115]. The surfactant-like behavior of peculiar ILs has identified them as potential chemical components for EOR processes, emulsion stabilizers, and/or demulsifying agents [116][117][118].…”

Section: Ionic Surfactantsmentioning

confidence: 99%

Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry

Zolfaghari

Fakhru’l‐Razi

Abdullah

et al. 2016

Separation and Purification Technology

532

255

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The difficulties associated with transportation and refining of crude oil emulsions as well as produced water discharge limitations are among the conspicuous clues that have led the oilfield researchers to probe into practical demulsification methods for many decades.Inconsistent research outcomes observed in the literature for a particular demulsification method of a typical emulsion (i.e., water-in-oil or oil-in-water) arise not only from the varied influential parameters associated (such as salinity, temperature, pH, dispersed phase content, emulsifier/demulsifier concentration, droplet size, etc.), but also from the diverse types of emulsion constituents (namely oil, surfactant, salt, alkali, polymer, fine solids, and/or other chemicals/impurities). Being the main component in formation of stabilizing interfacial film surrounding the dispersed phase droplets, surfactant is the most predominant contributor to emulsion stability, extent of which depends on its nature (being ionic or nonionic, and its degree of hydrophilicity/lipophilicity), concentration and interaction with other surface-active agents in the emulsion, as well as on the salinity, temperature, and pH of the system. In this paper, it is endeavored to overview some of the most commonly exploited demulsification techniques (i.e., chemical, biological, membrane, electrical, and microwave irradiation) on both the oilfield and synthetic emulsions, taking into account the emulsion-stabilizing anddestabilizing effects with regard to the dominant parameters plus the emulsion composition.Further, the variations occurring in interfacial properties of emulsions by demulsification process are discussed. Finally, the mechanism(s) involved in emulsions resolution achieved by each method is elucidated. Clearly, the most efficient demulsification approach is the one able to attain desirable separation efficiency while complying with the environmental regulations and imposing the least economic burden on the petroleum industry.

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Section: Ionic Surfactantsmentioning

confidence: 99%

Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry

Zolfaghari

Fakhru’l‐Razi

Abdullah

et al. 2016

Separation and Purification Technology

532

255

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“…The use of the pyridinium-based ionic liquids for desulfurization of diesel and gasoline was also investigated [7, 14, 16]. Denitrogenation of feeds before HDS was also investigated in order to increase the efficiency of HDS process because N-compounds compete with S-compounds on the catalyst surface [19]. Pyridinium and imidazolium ionic liquids were tested, and it was observed that the same ionic liquids have extraction ability to both S- and N-compounds [1, 20, 21].…”

Section: Introductionmentioning

confidence: 99%

Extraction of S‐ and N‐Compounds from the Mixture of Hydrocarbons by Ionic Liquids as Selective Solvents

Gabrić¹,

Sander

Bubalo

et al. 2013

The Scientific World Journal

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Liquid-liquid extraction is an alternative method that can be used for desulfurization and denitrification of gasoline and diesel fuels. Recent approaches employ different ionic liquids as selective solvents, due to their general immiscibility with gasoline and diesel, negligible vapor pressure, and high selectivity to sulfur- and nitrogen-containing compounds. For that reason, five imidazolium-based ionic liquids and one pyridinium-based ionic liquid were selected for extraction of thiophene, dibenzothiophene, and pyridine from two model solutions. The influences of hydrodynamic conditions, mass ratio, and number of stages were investigated. Increasing the mass ratio of ionic liquid/model fuel and multistage extraction promotes the desulfurization and denitrification abilities of the examined ionic liquids. All selected ionic liquids can be reused and regenerated by means of vacuum evaporation.

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“…Among all the different types of synthetic materials, a new class of low toxicity organic compounds known as Ionic liquids (ILs) deserves particular attention due to their rapid growth in a number of applications, they have shown effective performance as inhibitors for various metals and alloys [19,20]. In this section, an insight into ionic liquids will be discussed in detail.…”

Section: Ionic Liquid (Il) Based Corrosion Inhibitorsmentioning

confidence: 99%

Emerging Corrosion Inhibitors for Interfacial Coating

2017

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Abstract:Corrosion is a deterioration of a metal due to reaction with environment. The use of corrosion inhibitors is one of the most effective ways of protecting metal surfaces against corrosion. Their effectiveness is related to the chemical composition, their molecular structures and affinities for adsorption on the metal surface. This review focuses on the potential of ionic liquid, polyionic liquid (PIL) and graphene as promising corrosion inhibitors in emerging coatings due to their remarkable properties and various embedment or fabrication strategies. The review begins with a precise description of the synthesis, characterization and structure-property-performance relationship of such inhibitors for anti-corrosion coatings. It establishes a platform for the formation of new generation of PIL based coatings and shows that PIL corrosion inhibitors with various heteroatoms in different form can be employed for corrosion protection with higher barrier properties and protection of metal surface. However, such study is still in its infancy and there is significant scope to further develop new structures of PIL based corrosion inhibitors and coatings and study their behaviour in protection of metals. Besides, it is identified that the combination of ionic liquid, PIL and graphene could possibly contribute to the development of the ultimate corrosion inhibitor based coating.

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Perspectives of Ionic Liquids Applications for Clean Oilfield Technologies

Cited by 22 publications

References 306 publications

Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry

Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry

Extraction of S‐ and N‐Compounds from the Mixture of Hydrocarbons by Ionic Liquids as Selective Solvents

Emerging Corrosion Inhibitors for Interfacial Coating

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