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 …

Magnetically responsive multi-wall carbon nanotubes as recyclable demulsifier for oil removal from crude oil-in-water emulsion with different pH levels

H Xu, W Jia, S Ren, J Wang - Carbon, 2019 - Elsevier
A magnetically responsive multi-walled carbon nanotubes (M-MWCNTs) appropriate for
acidic to alkaline conditions of crude O/W emulsion was designed and prepared via …

A critical evaluation of novel demulsifying agents based on acrylic terpolymers for Mexican heavy crude oils dehydration

JV Fuentes, EB Zamora, A Chakraborty… - Separation and …, 2022 - Elsevier
A novel kind of random acrylic terpolymers based on butyl acrylate (B), 2-(dimethylamino)
ethyl acrylate (Ae), and 2-carboxyethyl acrylate (Ce) monomers was obtained by emulsion …

Hyperbranched polyethyleneimine for high-effective oil-water separation

H Yu, L Zhang, N Zhan, H Teng, L Zhou, J Zhao… - Journal of Petroleum …, 2022 - Elsevier
A series of hyperbranched polyethyleneimine (h-PEI) functioned with terminal amine groups
is synthesized to remove oil from O/W emulsion. The demulsifier dehydration rate of h-PEI is …

Anti-abrasion collagen fiber-based membrane functionalized by UiO-66-NH2 with ultra-high efficiency and stability for oil-in-water emulsions separation

X Ye, R Huang, Z Zheng, J Liu, J Chen, Y Lv - Chinese Journal of Chemical …, 2024 - Elsevier
Membrane separation strategies offer promising platform for the emulsion separation.
However, the low mechanical strength of membrane separation layers and the trade-off …

Investigation of Dioctyl Sodium Sulfosuccinate in Demulsifying Crude Oil-in-Water Emulsions

N Hassanshahi, G Hu, J Li - ACS omega, 2022 - ACS Publications
This research investigated the performance of dioctyl sodium sulfosuccinate (DSS), a double-
chain anionic surfactant, in breaking crude oil-in-water emulsions. The response surface …

Synthesis and application of amphiphilic copolymer as demulsifier for super heavy oil emulsions

H Xu, Z Li, C Wang, Z Wang, R Yu, Y Tan - Colloids and Surfaces A …, 2023 - Elsevier
A series of amphiphilic copolymers (PIDs) were synthesized through free radical
copolymerization of isobutyl acrylate (IBA) with N, N-dimethylacrylamide (DMAA). The …

Characterization of water-in-oil emulsion and upgrading of asphalt with supercritical water treatment

D Shu, Y Chi, J Liu, Q Huang - Energy & Fuels, 2017 - ACS Publications
The products of asphalt upgrading in supercritical water (SCW) forms a mixture of cracked
oil, water, and fine coke particles; this mixture tends to be emulsified, which introduces direct …

Dewatering of poor-quality bitumen froth: Induction time and mixing effects

C Saraka, R Xu, MB Machado, S Bhattacharya… - Energy & …, 2018 - ACS Publications
The impact of mixing conditions on the removal of water and solids from high-water, poor-
quality bitumen froth was explored. Naphtha diluent and a demulsifier were added to …

Blend time measurement in the confined impeller stirred tank

K Jairamdas, A Bhalerao, MB Machado… - Chemical …, 2019 - Wiley Online Library
An image processing technique is applied to measure the blend time in a confined impeller
stirred tank (CIST). An acid‐base reaction is used to track mixing. The blend time is defined …