Results 61 to 70 of about 22,271 (251)

Impact of Paraffin Composition on the Interactions between Waxes, Asphaltenes, and Paraffin Inhibitors in a Light Crude Oil

Colloids and Interfaces, 2023
The effect of wax molecular weight distribution on the efficacy of two alpha olefin-maleic anhydride paraffin inhibitors (PIs) having different densities of alkyl side-chains were examined in light West Texas crude in the absence and presence of ...
Oualid M'barki, John Clements, Luis Salazar, James Machac, Quoc P. Nguyen   +4 more
doaj   +1 more source

Impact of Flow Rate and Wettability on the Determination of Relative Permeability from Core Floods [PDF]

, 2010
Imperial Users ...
Lau, Ei Sheen, Lau, Ei Sheen
core  

Synthesis of Coal Tar‐Based Hypercrosslinked Polymers via Friedel‐Crafts Alkylation: An Efficient Way to Access Carbon Electrode Material for Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Liquid coal tar (CT) is synthesized into hypercrosslinked polymers (HCPs) via the Friedel–Crafts alkylation, followed by oxidation‐carbonization to form disordered microporous carbon. The resulting CF2CT exhibits a high three‐electrode specific capacitance of 342 F g−1 at 1 A g−1, and the assembled symmetric supercapacitor illuminates a light sign ...
Zhichao Ren, Yanchun Pei, Xueyan Wu, Yan Lv, Rui Xue, Jixi Guo, Xiaogang Zhang   +6 more
wiley   +1 more source

The Mechanism of the Effect of FCC Slurry Oil Blending Ratio on the Colloidal Stability and Asphaltene Aggregation Behavior of Low-Sulfur Marine Fuel Oil

Journal of Marine Science and Engineering
Addressing IMO 2020 compliance, this study investigates marine fuel oil production from hydrotreated residues, focusing on mitigating excessive total sediment potential (TSP) caused by over-hydrotreatment.
Aigang Li, Shengjun Guo, Jianwen Deng, Hong Chen, Jinxuan Wu, Ru Jiang, Jing Tan, Lihua Cheng, Libo Zhang, Qinzhen Fan   +9 more
doaj   +1 more source

Critical Review on the Molecular Behavior of Surfactants at the Oil–Water Interface During Oil Displacement

Energy Science &Engineering, EarlyView.
This review systematically explores the molecular behavior of diverse surfactants (anionic, cationic, nonionic, amphoteric) at the oil–water interface through molecular dynamics simulations. It highlights their roles in reducing interfacial tension, altering interfacial structure, and enhancing oil recovery efficiency.
Zhaowei Hou, Wenchao Jiang, Xiaolin Wu, Jian Gai, Liqiang Zheng, Jie Chen, Shuanghua Wang, Shouliang Lu, Bin Huang, Jichao Sun, Long Su   +10 more
wiley   +1 more source

Mise en évidence de la polydispersité physico-chimique des asphaltènes Evidence of the Physicochemical Polydispersity of Asphaltenes

Oil & Gas Science and Technology, 2006
Afin d'élaborer un modèle thermodynamique capable de décrire la floculation des asphaltènes en s'appuyant au maximum sur la réalité physicochimique, nous nous sommes efforc In order to develop a thermodynamic model able to describe the flocculation of
Szewczyk V., Behar F., Behar E., Scarsella M.   +3 more
doaj   +1 more source

Asphaltenes and preasphaltenes from coal liquid extracts: feedstocks to obtain carbon mesophase

Revista Facultad de Ingeniería Universidad de Antioquia, 2014
The aim of this work was to produce mesophase by using preasphaltenes and asphaltenes from coal liquid extracts obtained in a Direct Coal Liquefaction (DCL)  process.
Juan Barraza, Natalia Muñoz, Lina Barona   +2 more
doaj   +1 more source

Model molecules mimicking asphaltenes [PDF]

Advances in Colloid and Interface Science, 2015
Asphalthenes are typically defined as the fraction of petroleum insoluble in n-alkanes (typically heptane, but also hexane or pentane) but soluble in toluene. This fraction causes problems of emulsion formation and deposition/precipitation during crude oil production, processing and transport.
Sjøblom, Johan, Simon, Sebastien Charles, Xu, Zhenghe   +2 more
openaire   +3 more sources

Characterisation of Deposited Foulants and Asphaltenes using Advanced Vibrational Spectroscopy

, 2009
The magnitude and significance of crude oil fouling have led to a number of studies; however, the fundamentals of the complex fouling process are not fully understood. This thesis describes the use of the high chemical specificity, imaging capabilities
Tay, Feng Huai, Tay, Feng Huai
core   +1 more source

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos, Egberto Pereira, Lucas Pinto Heckert Bastos, René Rodrigues   +3 more
wiley   +1 more source