Cargando…
Experimental Measurement and Equilibrium Modeling of Adsorption of Asphaltenes from Various Origins onto the Magnetite Surface under Static and Dynamic Conditions
[Image: see text] Wettability alterations, permeability reduction of reservoir rocks, and oil production decline may occur as a consequence of asphaltene adsorption and deposition on the surfaces of oil reservoir rocks. Magnetite and other iron minerals are abundant in the rock composition of sandst...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8459417/ https://www.ncbi.nlm.nih.gov/pubmed/34568703 http://dx.doi.org/10.1021/acsomega.1c04224 |
_version_ | 1784571515926216704 |
---|---|
author | Mohammadi, Mohammad-Reza Ansari, Sajjad Bahmaninia, Hamid Ostadhassan, Mehdi Norouzi-Apourvari, Saeid Hemmati-Sarapardeh, Abdolhossein Schaffie, Mahin Ranjbar, Mohammad |
author_facet | Mohammadi, Mohammad-Reza Ansari, Sajjad Bahmaninia, Hamid Ostadhassan, Mehdi Norouzi-Apourvari, Saeid Hemmati-Sarapardeh, Abdolhossein Schaffie, Mahin Ranjbar, Mohammad |
author_sort | Mohammadi, Mohammad-Reza |
collection | PubMed |
description | [Image: see text] Wettability alterations, permeability reduction of reservoir rocks, and oil production decline may occur as a consequence of asphaltene adsorption and deposition on the surfaces of oil reservoir rocks. Magnetite and other iron minerals are abundant in the rock composition of sandstone reservoirs and cause problems by precipitation and adsorption of polar components of crude oil. The main purpose of this study was to investigate the adsorption of six asphaltene samples of various origins onto the magnetite surface. Characterization of magnetite was performed by Brunauer–Emmett–Teller (BET), Fourier transform infrared spectroscopy (FTIR), and X-ray fluorescence (XRF). Also, FTIR, dynamic light scattering (DLS), and elemental analysis were performed to characterize asphaltenes. Static and dynamic adsorption experiments were carried out to investigate the effects of the water phase, adsorbent size, flow rate, and asphaltene compositions on asphaltene uptake by the magnetite. The results showed that an increase in the nitrogen content and aromatic nature of asphaltenes increased their adsorption on magnetite. The addition of water to the adsorption tests significantly reduced the adsorption amount of asphaltenes on the magnetite. A considerable decrease in asphaltene adsorption was observed with an increase in the flow rate in dynamic tests. This shows that higher flow rates reduce the interaction between adsorbed asphaltenes and asphaltene aggregates in the solution, which reduces the uptake of more asphaltenes. Moreover, adsorbed asphaltene components with a weaker bond are detached from the magnetite surface, which can be attributed to the physisorption of asphaltenes. Eventually, four well-known adsorption isotherm models, namely, Langmuir, Dubinin–Radushkevich, Temkin, and Freundlich were utilized to find the mechanisms of asphaltene adsorption onto the magnetite surface. The Freundlich model seems to provide better estimates for the adsorption of asphaltenes on the magnetite surface. The findings of this study render insights into the better management of oil production in formations with iron-containing rocks. |
format | Online Article Text |
id | pubmed-8459417 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-84594172021-09-24 Experimental Measurement and Equilibrium Modeling of Adsorption of Asphaltenes from Various Origins onto the Magnetite Surface under Static and Dynamic Conditions Mohammadi, Mohammad-Reza Ansari, Sajjad Bahmaninia, Hamid Ostadhassan, Mehdi Norouzi-Apourvari, Saeid Hemmati-Sarapardeh, Abdolhossein Schaffie, Mahin Ranjbar, Mohammad ACS Omega [Image: see text] Wettability alterations, permeability reduction of reservoir rocks, and oil production decline may occur as a consequence of asphaltene adsorption and deposition on the surfaces of oil reservoir rocks. Magnetite and other iron minerals are abundant in the rock composition of sandstone reservoirs and cause problems by precipitation and adsorption of polar components of crude oil. The main purpose of this study was to investigate the adsorption of six asphaltene samples of various origins onto the magnetite surface. Characterization of magnetite was performed by Brunauer–Emmett–Teller (BET), Fourier transform infrared spectroscopy (FTIR), and X-ray fluorescence (XRF). Also, FTIR, dynamic light scattering (DLS), and elemental analysis were performed to characterize asphaltenes. Static and dynamic adsorption experiments were carried out to investigate the effects of the water phase, adsorbent size, flow rate, and asphaltene compositions on asphaltene uptake by the magnetite. The results showed that an increase in the nitrogen content and aromatic nature of asphaltenes increased their adsorption on magnetite. The addition of water to the adsorption tests significantly reduced the adsorption amount of asphaltenes on the magnetite. A considerable decrease in asphaltene adsorption was observed with an increase in the flow rate in dynamic tests. This shows that higher flow rates reduce the interaction between adsorbed asphaltenes and asphaltene aggregates in the solution, which reduces the uptake of more asphaltenes. Moreover, adsorbed asphaltene components with a weaker bond are detached from the magnetite surface, which can be attributed to the physisorption of asphaltenes. Eventually, four well-known adsorption isotherm models, namely, Langmuir, Dubinin–Radushkevich, Temkin, and Freundlich were utilized to find the mechanisms of asphaltene adsorption onto the magnetite surface. The Freundlich model seems to provide better estimates for the adsorption of asphaltenes on the magnetite surface. The findings of this study render insights into the better management of oil production in formations with iron-containing rocks. American Chemical Society 2021-09-10 /pmc/articles/PMC8459417/ /pubmed/34568703 http://dx.doi.org/10.1021/acsomega.1c04224 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Mohammadi, Mohammad-Reza Ansari, Sajjad Bahmaninia, Hamid Ostadhassan, Mehdi Norouzi-Apourvari, Saeid Hemmati-Sarapardeh, Abdolhossein Schaffie, Mahin Ranjbar, Mohammad Experimental Measurement and Equilibrium Modeling of Adsorption of Asphaltenes from Various Origins onto the Magnetite Surface under Static and Dynamic Conditions |
title | Experimental Measurement and Equilibrium Modeling
of Adsorption of Asphaltenes from Various Origins onto the Magnetite
Surface under Static and Dynamic Conditions |
title_full | Experimental Measurement and Equilibrium Modeling
of Adsorption of Asphaltenes from Various Origins onto the Magnetite
Surface under Static and Dynamic Conditions |
title_fullStr | Experimental Measurement and Equilibrium Modeling
of Adsorption of Asphaltenes from Various Origins onto the Magnetite
Surface under Static and Dynamic Conditions |
title_full_unstemmed | Experimental Measurement and Equilibrium Modeling
of Adsorption of Asphaltenes from Various Origins onto the Magnetite
Surface under Static and Dynamic Conditions |
title_short | Experimental Measurement and Equilibrium Modeling
of Adsorption of Asphaltenes from Various Origins onto the Magnetite
Surface under Static and Dynamic Conditions |
title_sort | experimental measurement and equilibrium modeling
of adsorption of asphaltenes from various origins onto the magnetite
surface under static and dynamic conditions |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8459417/ https://www.ncbi.nlm.nih.gov/pubmed/34568703 http://dx.doi.org/10.1021/acsomega.1c04224 |
work_keys_str_mv | AT mohammadimohammadreza experimentalmeasurementandequilibriummodelingofadsorptionofasphaltenesfromvariousoriginsontothemagnetitesurfaceunderstaticanddynamicconditions AT ansarisajjad experimentalmeasurementandequilibriummodelingofadsorptionofasphaltenesfromvariousoriginsontothemagnetitesurfaceunderstaticanddynamicconditions AT bahmaniniahamid experimentalmeasurementandequilibriummodelingofadsorptionofasphaltenesfromvariousoriginsontothemagnetitesurfaceunderstaticanddynamicconditions AT ostadhassanmehdi experimentalmeasurementandequilibriummodelingofadsorptionofasphaltenesfromvariousoriginsontothemagnetitesurfaceunderstaticanddynamicconditions AT norouziapourvarisaeid experimentalmeasurementandequilibriummodelingofadsorptionofasphaltenesfromvariousoriginsontothemagnetitesurfaceunderstaticanddynamicconditions AT hemmatisarapardehabdolhossein experimentalmeasurementandequilibriummodelingofadsorptionofasphaltenesfromvariousoriginsontothemagnetitesurfaceunderstaticanddynamicconditions AT schaffiemahin experimentalmeasurementandequilibriummodelingofadsorptionofasphaltenesfromvariousoriginsontothemagnetitesurfaceunderstaticanddynamicconditions AT ranjbarmohammad experimentalmeasurementandequilibriummodelingofadsorptionofasphaltenesfromvariousoriginsontothemagnetitesurfaceunderstaticanddynamicconditions |