Results 41 to 50 of about 18,552 (210)

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

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

Dynamic accelerated solvent extraction for faster oil sands oil, water, and solids determination and solids cleaning

The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 2020-2032, April 2026.
25 g of oil sands extracted by dynamic accelerated solvent extraction, yielding 177 mL of bitumen–toluene extract and clean dried solids in approximately 12 min. Abstract Determining the oil, water, and solids (OWS) contents of oil sand is essential to many aspects of the oil sands industry including mine planning, optimization of extraction processes,
Ceanna Ting‐Yan Cheung, Matthew Ripmeester   +1 more
wiley   +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

Supercritical water deasphalting and desulphurization of heavy fuel oil with comprehensive molecular‐level analysis and techno‐economic analysis

The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1727-1742, April 2026.
Supercritical water deasphalting. Abstract The removal of sulphur from heavy fuel oil (HFO) is essential to address environmental concerns and comply with the stringent regulations imposed by the International Maritime Organization (IMO) in 2020. Previously, the acceptable limit for sulphur was 3.5 wt.%, but it was recently changed to 0.5 wt.%.
Biswajit Saha, Sundaramurthy Vedachalam, Nathalie Baquerizo, Ajay K. Dalai, Aiping Chen, Saumitra Saxena, Bassam Dally   +6 more
wiley   +1 more source

Study of Asphaltene Structure Precipitated from Oil Sands

Eurasian Chemico-Technological Journal, 2013
In the paper microscopic structure and physicochemical characteristics of asphaltenes were investigated. Asphaltene was precipitated from natural bitumen of oil sand of Munaily-Mola deposit using organic solvent of petroleum ether.
F. R. Sultanov, Ye. Tileuberdi, Ye. K. Ongarbayev, Z. A. Mansurov, K. A. Khasseinov, B. K. Tuleutaev, F. Behrendt   +6 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

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, Volume 49, Issue 2, Page 433-447, April 2026.
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

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

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

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 2, March 2026.
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