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Monday, April 20, 2020 | History

4 edition of Electrolytic demulsification of a dilute oil-in-water emulsion found in the catalog.

Electrolytic demulsification of a dilute oil-in-water emulsion

Filippo Carmelo Barillaro

Electrolytic demulsification of a dilute oil-in-water emulsion

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Published by National Library of Canada in Ottawa .
Written in English


Edition Notes

Thesis (M.Sc.) -- University of Toronto, 1997.

SeriesCanadian theses = -- Thèses canadiennes
The Physical Object
FormatMicroform
Pagination2 microfiches : negative. --
ID Numbers
Open LibraryOL21200556M
ISBN 100612454703
OCLC/WorldCa51536450

of an emulsion, - making it easier to prepare, - producing finer droplet size, - aiding stability to the dispersed state controlling the type of emulsion that is to be formed: oil in .   Demulsification experiments were carried out by shaking jars containing 20 to 50 g of various emulsions in the presence of various amounts, usually 5 to 10% of a chosen additive. The partially-filled jars were agitated vigorously at 70° C. for a 10 minute period and subsequently allowed to settle at the same temperature for a 24 hour period.


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Electrolytic demulsification of a dilute oil-in-water emulsion by Filippo Carmelo Barillaro Download PDF EPUB FB2

Effect of external electric field on the lifetime of oil-in-water emulsion. The emulsion used Electrolytic demulsification of a dilute oil-in-water emulsion book the electrical demulsification is characterized by ζ = −60 mV, T = K, s +,0 = 0, ɛ l = 80 ɛ 0, c 0 = 2 × 10 −4 mol/dm 3, a = 25–30 μm and A H = 5 × 10 −21 J [15].Cited by: @article{osti_, title = {Demulsification of dilute oil/water emulsions with organic electrolytes}, author = {Jansson, M.

and Pes, M.A.}, abstractNote = {Tetraalkylammonium and tetraalkylphosphonium ions induce oil droplet coalescence in dilute oil/water emulsions stabilized by sodium dodecanoate.

This was shown by dynamic light-scattering, monitoring oil droplet sizes, and kinetic. Rapid demulsification of dense oil-in-water (O/W) emulsions has been found to be induced by applying a low electric field of the order of 1–10 V/cm.

The demulsification simultaneously takes place over the entire space between two by:   Efficient demulsification of oil-in-water emulsions using a zeolitic imidazolate framework: Adsorptive removal of oil droplets from water. Lin KY(1), Chen YC(2), Phattarapattamawong S(3). Author information: (1)Department of Environmental Engineering, Electrolytic demulsification of a dilute oil-in-water emulsion book Chung Hsing University, Kuo-Kuang Road, Taichung, by:   The mechanism of demulsification of 30% Nujol % water emulsions with various surfactants has been studied using a Coulter Counter to monitor the particle size at various depths in the cream layer as a function of time of centrifugation.

It was found that the cream layer is stratified with varying sizes of oil globules along the centrifuge by:   Microwave radiation to promote the destabilization of water-in-crude oil petroleum emulsions is already an alternative technology for heating. Recent studies have suggested Electrolytic demulsification of a dilute oil-in-water emulsion book microwave heating is more effective than conventional heating.

This study assessed the following effects on the demulsification process: the aging of emulsions for the two types of heating (microwave and Cited by: The demulsification of water-in-oil (W/O) emulsion was conducted using a domestic microwave oven; Elba domestic microwave oven Electrolytic demulsification of a dilute oil-in-water emulsion book EMO SS.

ml of emulsion was inserted into a glass. A miniature process for separating the oil phase from dilute oil/water emulsion is developed.

This process applies a confined space apparatus, which is a thin flow channel made of two parallel plastic plates.

The space between the two plates is rather narrow to improve the collisions between oil droplets and the plate by: 6. Oleic acid-coated magnetite nanoparticles are a potential magnetic demulsifier.

The demulsifier can magnetically break diluted crude oil-in-water nanoemulsions. The demulsification efficiency of the demulsifier is influenced by its by: literature concerning the demulsification processes.

EXPERIMENTAL SECTION Preparation of Model Water-in-Oil Emulsions The study of chemical demulsification of w/o emulsions required a preliminary analysis, devoted to the formulation of a model emulsion simulating the typical compositions of those occurring in the pe-troleum by: 4.

Removing oil from oil-in-water emulsion using electrical demulsification method Article in Journal of Industrial and Engineering Chemistry 6(2) March with 96 Reads How we measure 'reads'.

Chemical demulsification is the most widely applied method of treating water-in-oil and oil-in-water emulsions and involves the use of chemical additives to accelerate the emulsion breaking process. The formulation of an emulsion demulsifier for a specific petroleum emulsion is a complicated undertaking.

acid allowed aqueous ASTM bottom break emulsions break the emulsion Brownian Brownian movement centrifuge Chem chemical clean coalescence Colloid Interface Sci components concentration contain Cottrell cream crude oil CYCLONE SEPARATORS demulsification demulsification problem detergent dilute dispersed dissolved droplets effect effluent electrical electrode electrodialysis emul emulsified emulsion problems external Figure Electrolytic demulsification of a dilute oil-in-water emulsion book filter.

Separation of Oil Phase from Dilute Oil/Water Emulsion in Confined Space Apparatus Article in Chinese Journal of Chemical Engineering 20(2)– April with Reads How we measure. STABILITY AND DEMULSIFICATION OF THE WATER-IN-CRUDE EMULSIONS VIA CHEMICAL METHOD Petroleum companies are familiar with the problems caused by the formation of water-in-crude oil emulsions, especially with those related to the increment of the crude oil apparent viscosity an their impact on the oil production.

Many studies have. Water-in-Oil emulsions are demulsified using adducts of a) polyalkylene glycols (PAGS) having a molecular weight greater than 6, and up to 60, ethylene oxide (EO), and diisocyanates (DIs) or b) polyalkylene glycols (PAGs) having a molecular weight greater than 6, and up to 60, and diisocyanates (DIs).Cited by: Breakdown of dilute emulsions.

The demulsification is one of the most complicated problems in various emulsion technologies (the dehydration of water emulsions in crude oil and black oil, the extraction of cream from milk, the extraction of rubber from latex emulsions, the breakdown of emulsions during the extraction etc).

In this regard, emulsions are of special interest when formed by surfactant solutions in washing out processes of various oiled. Demulsification of a synthetic water in oil (W/O) crude oil emulsion was studied by measuring water–oil interfacial properties such as life time and thinning rate of oil film in the presence of.

(W/O) and if the oil is the dispersed phase, it is termed oil-in-water (O/W) emulsion [ ]. Water-in-oil crude oil emulsions may be encountered at all stages in the petroleum production and in processing industry. With presence of water, they are typically unde-sirable and can result in high pumping costs and pipelineCited by: Emulsion types, stability mechanisms and rheology: A review.

This book covers in detail the various aspects of joining materials to form parts. Electrical demulsification of oil-in-water.

Electrolytic demulsification has shown prornising results for separation of dilute oil-in- water emulsions. TABLE OF CONTENTS.\CKNOWLEDGEMENTS ABSTRACT TABLE OF CONTENTS Conductivity of TKOOL Emulsion for Various Ionic Strengths of NaClAuthor: Filippo Carmelo Barillaro.

The demulsification of oil-in-water (O/W) emulsions under freezing conditions is connected to fat crystallization in the oil droplet. Therefore, demulsification can be prevented by the use of oil with a low melting point, and also by lowering the O/W ratio.

However, an oil with a low melting point, such as sunflower, is rather expensive, and the O/W ratio has a significant effect on the Cited by: Abstract. Of a number of actinomycetes isolated from Antarctica and coastal regions of Korea, one isolate, identified as a Streptomycessp., demulsified an emulsion of kerosene/% Triton X (, v/v) within 1 aerial spores broke emulsions of low viscosity hydrocarbons such as kerosene and gasoline within 1 min, but after 3 min of contact they could demulsify less than 50% of Cited by: Emulsion Formation, Stability, and Rheology Tharwat F.

Tadros Introduction Emulsions are a class of disperse systems consisting of two immiscible liquids [1–3]. The liquid droplets (the disperse phase) are dispersed in a liquid medium (the continuous phase).

Several classes may be distinguished: oil-in File Size: KB. @article{osti_, title = {Demulsification of oil-in-water emulsions}, author = {Roark, D N}, abstractNote = {This patent describes a process of demulsifying an oil-in-water emulsion which comprises admixing with the emulsion a water-soluble polymer of monoallylamine that causes formation of and separation between an oil phase and an aqueous phase to occur.

Demulsification, or emulsion breaking, is especially important in crude oil production and waste water treatment. In crude oil production, water-in-oil emulsions are typically produced. These emulsions can be extremely stable due to the asphaltenes and resins naturally found in many crude oils.

Effect of water content of the emulsion: The first part of this study deals with the formation, production and stabilization of w/o emulsions, while in the second part discusses the emulsion breaking (demulsification) of w/o.

The effect of water content of the emulsion on its stability, processing time, dynamic shear viscosity, density and pour. Oil Emulsion 10 Chemical Demulsification 12 Chemical Demulsification of Water-In- Crude Oil Emulsions 12 Characterization and Demulsification of Water-In-Crude Oil Emulsions 14 Multi Stage Demulsification Process 16 Systematic Crude Oil Dewatering Emulsion: An emulsion is a colloidal dispersion of one liquid (disperse phase) in another (continuous phase) Types of Emulsion: Water-in-oil Oil-in-water Complex/multiple emulsions Macroemulsions, size > µm Microemulsions, size File Size: 1MB.

An inverted, or oil-in-water, emulsion can also occur, especially when the ratio of water to oil is very high. Two things are necessary to produce an emulsion of water and oil: agitation and an emulsifying agent. In order to ―break‖ the emulsion and separate the oil from the water, a variety of processes have been developed.

Emulsion Stability and Microwave Demulsification of Crude Oil Emulsion: Emulsion characterization, mechanisms of microwave heating technology, chemical demulsification [Nour, Abdurahman, Yunus, Rosli, Nour, Azhari] on *FREE* shipping on qualifying offers.

Emulsion Stability and Microwave Demulsification of Crude Oil Emulsion: Emulsion characterization, mechanisms of Author: Abdurahman Nour, Rosli Yunus, Azhari Nour.

Emulsion formation or break up either for oil in water or water in oil emulsion can be characterized based on the property and type of crude oil involved in the formation or break up of emulsion which can assist in formulating method of preventing formation of such emulsion.

Nuraini et al. selected four groups of demulsifiers which are amine Cited by: Filippo Carmelo Barillaro has written: 'Electrolytic demulsification of a dilute oil-in-water emulsion' Asked in Authors, Poets, and Playwrights What has the author Carmelo Micalizzi written.

Requested Breakdown of Emulsions: Demulsification Yes, sometimes but not always when needed and not completely Important examples: oil recovery (oil in water emulsions) waste treatment (oil in water emulsions) destroy the interfacial surfactant layer by demulsifiers topic in its own right.

Hydrocarbons are produced and transported in a form of mixtures containing oil, gas, and water plus organic and inorganic contaminants. The flow presence of these contaminants (emulsifiers) with the continuous agitation from reservoirs up to surface facilities leads to formation of tight emulsions that need to be dealt with carefully to treat and process them by: 1.

demulsification bottle tests, is thoroughly described in a previous SPE paper We will merely describe here the main steps of the experimental procedure. Water-in-crude-oil emulsions were prepared at room tempera-ture with a Polytron homogenizer.

The water cut (% v/v of brine in the emulsion) was 15% for Crude Oil A (actual water cut on the. This study was conducted to examine a batch microwave process of MHz in demulsification of water-oil- (w/o) emulsions as well as the effect of triton X and Low Sulfur Wax Residue (LSWR) from synthesized (w/o) emulsions stability and demulsification.

demulsification is the most widely used method to treat crude oil-in-water (O/W) and water-in-crude oil (W/O) emulsions. PROBLEM STATEMENT Hydrocarbon resources are very important regarding the fact that they include about 65% of the world‟s overall energy resources (Langevin et al., as cited in Ashrafizadeh and Kamran, ).File Size: 2MB.

What has the author Carmelo Furci written. Examples of alliteration in the book hatchet. 'Electrolytic demulsification of a dilute oil-in-water emulsion'. A change in the composition of an emulsion or in the action of the emulsifier may produce a phase inversion, in which an oil-in-water emulsion becomes a water-in-oil emulsion or vice versa.

Dilute emulsions are typical liquids, with droplets that move freely and independently of. Pdf inhabitants of the Mission San Carlos Borromeo de Carmelo used aqueducts to bring water from nearby springs.

They also used it to supply the water for the missionÕs fountain.DEMULSIFICATION TESTS OR BOTTLE TESTS The purpose of these tests is to determine download pdf most active demulsifier for breaking the emulsion produced by a well or a group of wells, the best amount to inject (i.e.

the lowest cost of additive needed to reach the required specifications) and temperature of utilisation. Basic principle. An emulsion is a ebook of two or more immiscible liquids where one liquid contains a ebook of the other liquids.

In other words, an emulsion is a special type of mixture made by combining two liquids that normally don't mix. The word emulsion comes from the Latin word meaning "to milk" (milk is one example of an emulsion of fat and water).