Investigation of Oxidative Desulfurization of Light Naphtha by NiMo/𝛾-Al2O3 Catalyst
In this research, we investigated the effects of parameters, including reaction time, reaction temperature, the mass ratio (mcat./mfeed), and volume ratio (VH2O2/Vfeed) on sulfur removal conversion of light naphtha under oxidative desulfurization (ODS) reaction. So to achieve this goal, several acti...
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| Format: | Article |
| Language: | English |
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Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2021-04-01
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| Series: | Iranian Journal of Chemistry & Chemical Engineering |
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| Online Access: | http://www.ijcce.ac.ir/article_37260_67b70bf237d7f10f37b0adaf4ca08b12.pdf |
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| author | Soheila Sheibani Karim Zare Seyed Mahmoud Mousavi Safavi |
| author_facet | Soheila Sheibani Karim Zare Seyed Mahmoud Mousavi Safavi |
| author_sort | Soheila Sheibani |
| collection | DOAJ |
| description | In this research, we investigated the effects of parameters, including reaction time, reaction temperature, the mass ratio (mcat./mfeed), and volume ratio (VH2O2/Vfeed) on sulfur removal conversion of light naphtha under oxidative desulfurization (ODS) reaction. So to achieve this goal, several active catalysts are prepared while molybdenum (Mo) was used as an active metal. Nickel (Ni) was the promoter. 𝛾-alumina (𝛾-Al2O3) was used as a support and modified by chelate agents such as citric acid (C6H8O7), ethylene diamine tetraacetic acid (EDTA), polyethylene glycol (PEG), Sorbitol, and urea ((NH4)2CO). These catalysts were synthesized by using the wetness impregnation in-situ method. Then they were applied to the ODS process for light naphtha. These catalysts were characterized by N2adsorption-desorption isotherms (BET, BJH), Scanning Electron Microscope (SEM), temperature-programmed desorption (NH3-TPD), and FT-IR analysis. The catalyst that synthesized in the presence of sorbitol, had the best performance. The optimization conditions for this catalyst were m (catalyst)/m (feed)= 0.013, reaction temperature of 35 °C, 50 mL of feed, 0.5 g of catalyst, 1 hour reaction time, and V (H2O2)/VFeed = 0.045. It revealed the maximum performance for ODS reaction of the real feed. Under these circumstances, the sulfur of light naphtha decreased from 160 ppm to 38 ppm during the reaction. |
| first_indexed | 2024-12-18T14:51:32Z |
| format | Article |
| id | doaj.art-13dfeb28ff844babb59ba5bb4dff6726 |
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| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-12-18T14:51:32Z |
| publishDate | 2021-04-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-13dfeb28ff844babb59ba5bb4dff67262022-12-21T21:04:09ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862021-04-0140241742710.30492/ijcce.2019.3726037260Investigation of Oxidative Desulfurization of Light Naphtha by NiMo/𝛾-Al2O3 CatalystSoheila Sheibani0Karim Zare1Seyed Mahmoud Mousavi Safavi2Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, I.R. IRANDepartment of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, I.R. IRANDepartment of Chemistry and Chemical Engineering, Buin Zahra Branch, Islamic Azad University, Buin Zahra, I.R. IRANIn this research, we investigated the effects of parameters, including reaction time, reaction temperature, the mass ratio (mcat./mfeed), and volume ratio (VH2O2/Vfeed) on sulfur removal conversion of light naphtha under oxidative desulfurization (ODS) reaction. So to achieve this goal, several active catalysts are prepared while molybdenum (Mo) was used as an active metal. Nickel (Ni) was the promoter. 𝛾-alumina (𝛾-Al2O3) was used as a support and modified by chelate agents such as citric acid (C6H8O7), ethylene diamine tetraacetic acid (EDTA), polyethylene glycol (PEG), Sorbitol, and urea ((NH4)2CO). These catalysts were synthesized by using the wetness impregnation in-situ method. Then they were applied to the ODS process for light naphtha. These catalysts were characterized by N2adsorption-desorption isotherms (BET, BJH), Scanning Electron Microscope (SEM), temperature-programmed desorption (NH3-TPD), and FT-IR analysis. The catalyst that synthesized in the presence of sorbitol, had the best performance. The optimization conditions for this catalyst were m (catalyst)/m (feed)= 0.013, reaction temperature of 35 °C, 50 mL of feed, 0.5 g of catalyst, 1 hour reaction time, and V (H2O2)/VFeed = 0.045. It revealed the maximum performance for ODS reaction of the real feed. Under these circumstances, the sulfur of light naphtha decreased from 160 ppm to 38 ppm during the reaction.http://www.ijcce.ac.ir/article_37260_67b70bf237d7f10f37b0adaf4ca08b12.pdfmolybdenum oxidenickel oxideoxidative desulfurization catalystchelating agentlight naphtha |
| spellingShingle | Soheila Sheibani Karim Zare Seyed Mahmoud Mousavi Safavi Investigation of Oxidative Desulfurization of Light Naphtha by NiMo/𝛾-Al2O3 Catalyst Iranian Journal of Chemistry & Chemical Engineering molybdenum oxide nickel oxide oxidative desulfurization catalyst chelating agent light naphtha |
| title | Investigation of Oxidative Desulfurization of Light Naphtha by NiMo/𝛾-Al2O3 Catalyst |
| title_full | Investigation of Oxidative Desulfurization of Light Naphtha by NiMo/𝛾-Al2O3 Catalyst |
| title_fullStr | Investigation of Oxidative Desulfurization of Light Naphtha by NiMo/𝛾-Al2O3 Catalyst |
| title_full_unstemmed | Investigation of Oxidative Desulfurization of Light Naphtha by NiMo/𝛾-Al2O3 Catalyst |
| title_short | Investigation of Oxidative Desulfurization of Light Naphtha by NiMo/𝛾-Al2O3 Catalyst |
| title_sort | investigation of oxidative desulfurization of light naphtha by nimo 𝛾 al2o3 catalyst |
| topic | molybdenum oxide nickel oxide oxidative desulfurization catalyst chelating agent light naphtha |
| url | http://www.ijcce.ac.ir/article_37260_67b70bf237d7f10f37b0adaf4ca08b12.pdf |
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