Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil
In this study, the upgrading of Iraqi heavy crude oil was achieved utilizing the solvent deasphalting approach (SDA) and enhanced solvent deasphalting (e-SDA) by adding Nanosilica (NS). The NS was synthesized from local sand. The XRD result, referred to as the amorphous phase, has a wide peak at 2Θ...
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University of Baghdad, College of Science for Women
2023-02-01
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| Series: | مجلة بغداد للعلوم |
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| Online Access: | https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6895 |
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| author | Firdews Shakir Hussein Q Hussein Zeinab T Abdulwahhab |
| author_facet | Firdews Shakir Hussein Q Hussein Zeinab T Abdulwahhab |
| author_sort | Firdews Shakir |
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In this study, the upgrading of Iraqi heavy crude oil was achieved utilizing the solvent deasphalting approach (SDA) and enhanced solvent deasphalting (e-SDA) by adding Nanosilica (NS). The NS was synthesized from local sand. The XRD result, referred to as the amorphous phase, has a wide peak at 2Θ= (22 - 23º) The inclusion of hydrogen-bonded silanol groups (Si–O–H) and siloxane groups (Si–O–Si) in the FTIR spectra. The SDA process was handled using n-pentane solvent at various solvent to oil ratios (SOR) (4-16/1ml/g), room and reflux temperature, and 0.5 h mixing time. In the e-SDA process, various fractions of the NS (1–7 wt.%) have been utilized with 61 nm particle size and 560.86 m²/g surface area in the presence of 12 ml/g SOR with 0.5 hr. mixing time at room and reflux temperature. The results showed that heavy crude was upgraded maximally using 7 wt.% of NS. The API increased to 35.9, while the asphaltene reduction increased to 87.22%. The removal of sulfur, vanadium, and nickel increased to 51.17%, 55.07%, and 69.87%, respectively.
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| format | Article |
| id | doaj-art-27a3e781d90845febd7356f93d2d622a |
| institution | DOAJ |
| issn | 2078-8665 2411-7986 |
| language | English |
| publishDate | 2023-02-01 |
| publisher | University of Baghdad, College of Science for Women |
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| series | مجلة بغداد للعلوم |
| spelling | doaj-art-27a3e781d90845febd7356f93d2d622a2025-08-20T02:54:57ZengUniversity of Baghdad, College of Science for Womenمجلة بغداد للعلوم2078-86652411-79862023-02-0120110.21123/bsj.2022.6895Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil Firdews Shakir0 Hussein Q Hussein1Zeinab T Abdulwahhab2Chemical Engineering Department, College of engineering, University of Baghdad, Baghdad, Iraq.Chemical Engineering Department, College of engineering, University of Baghdad, Baghdad, Iraq.Petroleum Research and Development Center, Ministry of Oil, Baghdad, Iraq. In this study, the upgrading of Iraqi heavy crude oil was achieved utilizing the solvent deasphalting approach (SDA) and enhanced solvent deasphalting (e-SDA) by adding Nanosilica (NS). The NS was synthesized from local sand. The XRD result, referred to as the amorphous phase, has a wide peak at 2Θ= (22 - 23º) The inclusion of hydrogen-bonded silanol groups (Si–O–H) and siloxane groups (Si–O–Si) in the FTIR spectra. The SDA process was handled using n-pentane solvent at various solvent to oil ratios (SOR) (4-16/1ml/g), room and reflux temperature, and 0.5 h mixing time. In the e-SDA process, various fractions of the NS (1–7 wt.%) have been utilized with 61 nm particle size and 560.86 m²/g surface area in the presence of 12 ml/g SOR with 0.5 hr. mixing time at room and reflux temperature. The results showed that heavy crude was upgraded maximally using 7 wt.% of NS. The API increased to 35.9, while the asphaltene reduction increased to 87.22%. The removal of sulfur, vanadium, and nickel increased to 51.17%, 55.07%, and 69.87%, respectively. https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6895Asphaltene, Deasphalted Oil, Heavy Crude, Solvent Deasphalting, and Nanosilica |
| spellingShingle | Firdews Shakir Hussein Q Hussein Zeinab T Abdulwahhab Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil مجلة بغداد للعلوم Asphaltene, Deasphalted Oil, Heavy Crude, Solvent Deasphalting, and Nanosilica |
| title | Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil |
| title_full | Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil |
| title_fullStr | Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil |
| title_full_unstemmed | Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil |
| title_short | Influence of Nanosilica on Solvent Deasphalting for Upgrading Iraqi Heavy Crude Oil |
| title_sort | influence of nanosilica on solvent deasphalting for upgrading iraqi heavy crude oil |
| topic | Asphaltene, Deasphalted Oil, Heavy Crude, Solvent Deasphalting, and Nanosilica |
| url | https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6895 |
| work_keys_str_mv | AT firdewsshakir influenceofnanosilicaonsolventdeasphaltingforupgradingiraqiheavycrudeoil AT husseinqhussein influenceofnanosilicaonsolventdeasphaltingforupgradingiraqiheavycrudeoil AT zeinabtabdulwahhab influenceofnanosilicaonsolventdeasphaltingforupgradingiraqiheavycrudeoil |