Demulsifier - Wikipedia
网页Demulsifiers, or emulsion breakers, are a class of specialty chemicals used to separate emulsions, for example, water in oil. They are commonly used in the processing of crude oil, which is typically produced along with significant quantities of saline water. This water (and salt) must be removed from the crude oil prior to refining.
Chemical demulsification techniques in oil refineries: A review
网页2022年1月1日 · Chemical demulsification is the process of destabilizing the shielding interfacial layers with chemicals, resulting in a quicker emulsion breakdown rate. As a cost-effective and effective method of dewatering crude oil emulsions, chemical additives are frequently used. 1. Introduction.
Review on demulsification techniques for oil/water emulsion: …
网页2024年2月15日 · The chemicals demulsification method with demulsifying properties has shown a unique characteristic to separate immiscible liquids to achieve economical, and flexible emulsion separation. Notably, the emulsion separation process using chemicals can be effective if the following factors where considered ( Zolfaghari et al., 2016a ):
Demulsification techniques of water-in-oil and oil-in-water …
网页2016年10月1日 · 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 Influence of Newly Synthesized Demulsifiers on the Interfacial ...
网页A novel aliph. alc. nonionic polyether (MJTJU-2) has been successfully synthesized by esterification and polymn. It is found that this new polyether is efficient in fast demulsifying the water-in-oil emulsions, including water-in-diesel emulsion, water-in-crude oil emulsion, water-in-asphalt oil emulsion and water-in-asphaltenes soln. emulsion ...
Insights into the Evolution of an Emulsion with Demulsifying Bacteria ...
网页In this study, the demulsification process of four demulsifying bacteria was analyzed in situ using a newly developed method based on backscattering data from Turbiscan. First, the distribution difference of backscattering was employed to …
Application of Ionic Liquids for Chemical Demulsification: A Review
网页2020年10月23日 · Ionic liquids with imidazolium, pyridinium, and ammonium cations with long alkyl chain length would be suitable for demulsifying heavy crude oils .
Fundamental Basis for Action of a Chemical Demulsifier Revisited …
网页2022年1月3日 · In the past four decades, many experimental studies have confirmed the systematic events occurring at the so-called optimum formulation of surfactant–oil–water systems. At this particular formulation, the adsorbed surfactant at the interface interacts equally with water and oil phases, which is supposed to occur according to Winsor theory ...
A critical review of development and demulsification mechanisms of ...
网页2020年1月14日 · Effective treatment is needed to ensure optimum production of hydrocarbons. The present paper is to review reported works on the formation of petroleum emulsions, demulsification treatments, characteristics of fit-for-purpose demulsifiers as well as research trends in emulsion treatment.
Oil demulsification - PetroWiki
网页2015年7月6日 · Demulsification, the separation of an emulsion into its component phases, is a two-step process. The first step is flocculation (aggregation, agglomeration, or coagulation). The second step is coalescence. Either of these steps can be the rate-determining step in emulsion breaking.