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

The difficulties associated with transportation and refining of crude oil emulsions and 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 observe...

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Main Authors: Zolfaghari, Reza, Fakhru’l-Razi, Ahmadun, Abdullah, Luqman C., Elnashaie, Said S. E. H., Pendashteh, Alireza
Format: Article
Language:English
Published: Elsevier 2016
Online Access:http://psasir.upm.edu.my/id/eprint/55437/1/Demulsification%20techniques%20of%20water-in-oil%20and%20oil-in-water%20emulsions%20in%20petroleum%20.pdf
http://psasir.upm.edu.my/id/eprint/55437/
http://www.sciencedirect.com/science/article/pii/S1383586616307195
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spelling my.upm.eprints.554372017-09-14T10:04:54Z http://psasir.upm.edu.my/id/eprint/55437/ Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry Zolfaghari, Reza Fakhru’l-Razi, Ahmadun Abdullah, Luqman C. Elnashaie, Said S. E. H. Pendashteh, Alireza The difficulties associated with transportation and refining of crude oil emulsions and 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, and droplet size) 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) of both oilfield and synthetic emulsions, taking into account the emulsion-stabilizing and -destabilizing 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. Elsevier 2016-10 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55437/1/Demulsification%20techniques%20of%20water-in-oil%20and%20oil-in-water%20emulsions%20in%20petroleum%20.pdf Zolfaghari, Reza and Fakhru’l-Razi, Ahmadun and Abdullah, Luqman C. and Elnashaie, Said S. E. H. and Pendashteh, Alireza (2016) Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry. Separation and Purification Technology, 170. pp. 377-407. ISSN 1383-5866; ESSN: 1873-3794 http://www.sciencedirect.com/science/article/pii/S1383586616307195 10.1016/j.seppur.2016.06.026
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The difficulties associated with transportation and refining of crude oil emulsions and 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, and droplet size) 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) of both oilfield and synthetic emulsions, taking into account the emulsion-stabilizing and -destabilizing 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.
format Article
author Zolfaghari, Reza
Fakhru’l-Razi, Ahmadun
Abdullah, Luqman C.
Elnashaie, Said S. E. H.
Pendashteh, Alireza
spellingShingle Zolfaghari, Reza
Fakhru’l-Razi, Ahmadun
Abdullah, Luqman C.
Elnashaie, Said S. E. H.
Pendashteh, Alireza
Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry
author_facet Zolfaghari, Reza
Fakhru’l-Razi, Ahmadun
Abdullah, Luqman C.
Elnashaie, Said S. E. H.
Pendashteh, Alireza
author_sort Zolfaghari, Reza
title Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry
title_short Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry
title_full Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry
title_fullStr Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry
title_full_unstemmed Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry
title_sort demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry
publisher Elsevier
publishDate 2016
url http://psasir.upm.edu.my/id/eprint/55437/1/Demulsification%20techniques%20of%20water-in-oil%20and%20oil-in-water%20emulsions%20in%20petroleum%20.pdf
http://psasir.upm.edu.my/id/eprint/55437/
http://www.sciencedirect.com/science/article/pii/S1383586616307195
_version_ 1643835895276634112
score 13.211869

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