Results 91 to 100 of about 22,271 (251)

Aspects of asphaltene aggregation obtained from coarse-grained molecular modeling

, 2015
We have performed a molecular-simulation-based study to explore some of the underlying mechanisms of asphaltene aggregation. The daunting complexity of the crude oil + asphaltene system precludes any type of meaningful molecular simulation unless some ...
Galindo, A, Haslam, AJ, Jackson, G, Jover, JF, Mueller, EA, Nieto-Draghi, C, Toulhoat, H   +6 more
core   +2 more sources

Waxes in asphaltenes of crude oils and wax deposits

Petroleum Science, 2016
Composition and molecular mass distribution of n-alkanes in asphaltenes of crude oils of different ages and in wax deposits formed in the borehole equipment were studied. In asphaltenes, n-alkanes from C12 to C60 were detected.
Yulia M. Ganeeva, Tatiana N. Yusupova, Gennady V. Romanov   +2 more
doaj   +1 more source

An Evaluation of the Delayed-Coking Product Yield of Heavy Feedstocks Using Asphaltene Content and Carbon Residue Évaluation du rendement en produit de cokéfaction différée de pétrole lourd à l'aide de la teneur an asphaltènes et du résidu de coke

Oil & Gas Science and Technology, 2006
Six residua from different crude oils were evaluated for composition and carbon residue forming tendencies. The whole residua were evaluated for elemental composition, trace metals content, carbon residue, and specific gravity.
Schabron J. F., Speight J. G.
doaj   +1 more source

Investigating Asphaltene Deposition Kinetics through Particle Size and Count Correlation

, 2023
Muhammad Ali Buriro, Alake Adedamola Stephen   +1 more
openalex   +2 more sources

Structural Characterisation of Asphaltenes during Residue Hydrotreatment with Light Cycle Oil as an Additive

Journal of Chemistry, 2015
Several atmospheric residues (AR) of Kuwaiti crude, in the absence, or in the presence, of light cycle oil (LCO) as an aromatic additive, were hydrotreated in an experimental plant.
Yong-Jun Liu, Zhi-Feng Li
doaj   +1 more source

Water films, asphaltenes, and wettability alteration [PDF]

, 1998
R. D. Kaminsky, Clayton J. Radke
openalex   +1 more source

Role of oxidative pretreatment on asphaltenes enhancement for carbon fiber precursor production from vacuum residue (VR)

Next Materials
There is growing interest in utilizing petroleum residue to useful carbon materials for economic diversification of low-value petroleum byproducts. Due to chemical complexity and the presence of impurities, it requires pretreatment which traditionally ...
Mustafa M. Amin, Ajay Sharma, Mohammad M. Hossain, Muhammad N. Siddiquee   +3 more
doaj   +1 more source

Influence of asphaltene polarity on hydrate behaviors in water-in-oil emulsions [PDF]

, 2020
Dongxu Zhang, Qiyu Huang, Wei Wang, Rongbin Li, Huiyuan Li, Haimin Zheng, Xiangrui Zhu, Xun Zhang, Yijie Wang   +8 more
openalex   +1 more source

Enhanced PFAS adsorption with N-doped porous carbon beads from oil-sand asphaltene

, 2023
Bożena Czech, Bijan Nasri‐Nasrabadi, Agnieszka Krzyszczak, Ilona Sadok, Mirabbos Hojamberdiev, Ramdayal Yadav, Kamyar Shirvanimoghaddam, Minoo Naebe   +7 more
openalex   +1 more source

Molecular Weight and Association of Asphaltenes: a Critical Review Masse moléculaire et association des asphaltènes : une revue critique

Oil & Gas Science and Technology, 2006
The determination of asphaltene molecular weights is complicated by the tendency of asphaltene molecules to associate with each other and with other petroleum constituents, and reported molecular weights vary from 900 to 300 000.
Speight J. G., Wernick D. L., Gould K. A., Overfield R. E., Rao B. M. L.   +4 more
doaj   +1 more source