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

R Zolfaghari, A Fakhru'l-Razi, LC Abdullah… - Separation and …, 2016 - Elsevier
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 …

An overview of recent advances in state-of-the-art techniques in the demulsification of crude oil emulsions

MA Saad, M Kamil, NH Abdurahman, RM Yunus… - Processes, 2019 - mdpi.com
The processing of crude oil often requires the extraction of a large amount of water.
Frequently, crude oil is mixed with water to form water-in-crude oil emulsions as the result of …

Development of advanced oil/water separation technologies to enhance the effectiveness of mechanical oil recovery operations at sea: Potential and challenges

B Liu, B Chen, J Ling, EJ Matchinski, G Dong… - Journal of Hazardous …, 2022 - Elsevier
Mechanical oil recovery (ie, booming and skimming) is the most common tool for oil spill
response. The recovered fluid generated from skimming processes may contain a …

Polymeric surfactants and emerging alternatives used in the demulsification of produced water: A review

F Shehzad, IA Hussein, MS Kamal, W Ahmad… - Polymer …, 2018 - Taylor & Francis
Stable emulsions are frequently encountered in oil production and cause a series of
environmental and operational issues. Chemical demulsification is widely used for the …

​ Demulsification performance, behavior and mechanism of different demulsifiers on the light crude oil emulsions

W Kang, X Yin, H Yang, Y Zhao, Z Huang, X Hou… - Colloids and Surfaces A …, 2018 - Elsevier
Chemical demulsifiers were widely applied for demulsification of crude oil emulsions which
were generally formed with natural stabilizers during the extraction. Based on our previous …

Recyclable magnetic graphene oxide for rapid and efficient demulsification of crude oil-in-water emulsion

J Liu, H Wang, X Li, W Jia, Y Zhao, S Ren - Fuel, 2017 - Elsevier
Graphene oxide (GO) nanosheets have been experimentally proved to be a highly
efficiency, rapid and universal demulsifier to break up the crude oil-in-water emulsion and/or …

Demulsification of crude oil-in-water emulsions driven by graphene oxide nanosheets

J Liu, X Li, W Jia, Z Li, Y Zhao, S Ren - Energy & Fuels, 2015 - ACS Publications
Seeking highly efficient, rapid, universal, and low-cost demulsification materials to break up
the crude/heavy oil-in-water emulsion and emulsified oily wastewater at ambient conditions …

Novel and recyclable demulsifier of expanded perlite grafted by magnetic nanoparticles for oil separation from emulsified oil wastewaters

H Xu, W Jia, S Ren, J Wang - Chemical Engineering Journal, 2018 - Elsevier
Oily wastewater has become a serious environmental problem and attracted global concern.
Traditional methods are limited by their low separation efficiency, complicated instrument …

Chemical treatment of oilfield wastewater and the effect of temperature on treatment efficiency: A review

A Husain, MA Al-Harthi - Journal of Petroleum Science and Engineering, 2023 - Elsevier
Abstract Treatment of the oilfield wastewater from the chemical and petroleum industries,
often present in the form of emulsion, is one of the major environmental concern in current …

Novel polyether-polyquaternium copolymer as an effective reverse demulsifier for O/W emulsions: Demulsification performance and mechanism

H Sun, Q Wang, X Li, X He - Fuel, 2020 - Elsevier
This study reports a novel polyether-polyquaternium (PPA) demulsifier for demulsifying the
O/W emulsion that originating from alkaline-surfactant-polymer (ASP) flooding produced …