Results 141 to 150 of about 18,552 (210)
Some of the next articles are maybe not open access.
, 2020
Nanoparticles (NPs) have been recently recognized as effective asphaltenes adsorbents and deposition deterrents. The objective of this work is to provide a critical review and highlight the limitations of literature findings on NP use for asphaltenes ...
Mohammad Sadegh Mazloom +4 more
semanticscholar +1 more source
Nanoparticles (NPs) have been recently recognized as effective asphaltenes adsorbents and deposition deterrents. The objective of this work is to provide a critical review and highlight the limitations of literature findings on NP use for asphaltenes ...
Mohammad Sadegh Mazloom +4 more
semanticscholar +1 more source
Asphaltenes: Separations, structural analysis and applications
Journal of Energy Chemistry, 2019Asphaltenes, complex aromatic compounds from various carbonaceous sources, could be obtained by solvent dissolution, filtration and adsorption. It was difficult to clarify the molecular structures and chemical properties of asphaltene due to its ...
Pingping Zuo, Shijie Qu, Wenzhong Shen
semanticscholar +1 more source
Polar asphaltenes facilitate the flow improving performance of polyethylene-vinyl acetate
, 2020Herein, four asphaltenes in distinguished polarities were first fractionated from heavy crude oil by the solvent-precipitation method (that is, C5I asphaltenes) and characterized, and the effects of asphaltenes on the polyethylene-vinyl acetate (EVA) PPD'
Bo Yao +6 more
semanticscholar +1 more source
Energy & Fuels, 2008
One of the major problems encountered during the exploitation of the oil reservoir is the deposition of asphaltene in the porous rock near the wellbore. The crude oil asphaltene considerably reduces the rock permeability and, consequently, the oil production.
Montel, Valérie +3 more
openaire +2 more sources
One of the major problems encountered during the exploitation of the oil reservoir is the deposition of asphaltene in the porous rock near the wellbore. The crude oil asphaltene considerably reduces the rock permeability and, consequently, the oil production.
Montel, Valérie +3 more
openaire +2 more sources
Annual Review of Analytical Chemistry, 2011
Asphaltenes, the most aromatic of the heaviest components of crude oil, are critical to all aspects of petroleum utilization, including reservoir characterization, production, transportation, refining, upgrading, paving, and coating materials. The asphaltenes, which are solid, have or impart crucial and often deleterious attributes in fluids such as ...
openaire +2 more sources
Asphaltenes, the most aromatic of the heaviest components of crude oil, are critical to all aspects of petroleum utilization, including reservoir characterization, production, transportation, refining, upgrading, paving, and coating materials. The asphaltenes, which are solid, have or impart crucial and often deleterious attributes in fluids such as ...
openaire +2 more sources
, 2020
Asphaltenes in waxy crude oils greatly influence the performance of polymeric pour point depressants (PPDs), and the relevant mechanism needs to be further discovered. In this article, polyoctadecylacrylate (POA), polyoctadecyl-acrylate-maleic anhydride (
Xiaoping Zhang +5 more
semanticscholar +1 more source
Asphaltenes in waxy crude oils greatly influence the performance of polymeric pour point depressants (PPDs), and the relevant mechanism needs to be further discovered. In this article, polyoctadecylacrylate (POA), polyoctadecyl-acrylate-maleic anhydride (
Xiaoping Zhang +5 more
semanticscholar +1 more source
Fuel, 2019
It is widely concerned that the adsorbed natural surface-active components at the interface between crude oil and produced water form a protective layer to prevent emulsion from instability.
Daiwei Liu +5 more
semanticscholar +1 more source
It is widely concerned that the adsorbed natural surface-active components at the interface between crude oil and produced water form a protective layer to prevent emulsion from instability.
Daiwei Liu +5 more
semanticscholar +1 more source
Chemical Engineering Journal, 2019
Stabilization and destabilization of emulsions play an important role in a wide range of engineering and environmental processes (e.g., oil-water separation, waste water treatment).
Xiaohui Mao +5 more
semanticscholar +1 more source
Stabilization and destabilization of emulsions play an important role in a wide range of engineering and environmental processes (e.g., oil-water separation, waste water treatment).
Xiaohui Mao +5 more
semanticscholar +1 more source
NMR Spectroscopy Analysis of Asphaltenes
Energy & Fuels, 2019In crude oil production and processing, asphaltene aggregation followed by precipitation is a major problem for the oil industry as it causes deactivation of catalysts, blocking pipelines, and deposition on the internal surface of the reservoirs, etc ...
S. Ok, T. Mal
semanticscholar +1 more source
Resins and Asphaltenes of Light and Heavy Oils: Their Composition and Structure
Energy & Fuels, 2019The complex of physicochemical methods of analysis (elemental analysis, cryoscopy in benzene, IR and ¹H NMR spectroscopies, structural group analysis, gas chromatography–mass spectrometry, and selective chemical cleavage of sulfide and ether bonds) is ...
T. V. Cheshkova +5 more
semanticscholar +1 more source