Design of New Composites Nano-Catalysts for Naphtha Reforming Process: Experiments and Process Modeling
The naphtha catalytic reforming process is evaluated by designing new composite nano-catalysts. Three catalysts were prepared for this process. The first catalyst was molybdenum carbide composite with platinum over HY zeolite (Mo2C.Pt/HY zeolite), the second catalyst was molybdenum carbide composit...
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| Format: | Article |
| Language: | English |
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Tikrit University
2023-05-01
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| Series: | Tikrit Journal of Engineering Sciences |
| Subjects: | |
| Online Access: | https://tj-es.com/ojs/index.php/tjes/article/view/1008 |
| _version_ | 1797782332406497280 |
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| author | Aysar T. Jarullah Ahmed Nabeel Ahmed Ban Abdulrahman Ahmed Abdullah M. Ahmed |
| author_facet | Aysar T. Jarullah Ahmed Nabeel Ahmed Ban Abdulrahman Ahmed Abdullah M. Ahmed |
| author_sort | Aysar T. Jarullah |
| collection | DOAJ |
| description |
The naphtha catalytic reforming process is evaluated by designing new composite nano-catalysts. Three catalysts were prepared for this process. The first catalyst was molybdenum carbide composite with platinum over HY zeolite (Mo2C.Pt/HY zeolite), the second catalyst was molybdenum carbide composite with platinum over modified zeolite by cerium nitrate (Mo2C.Pt/CeY zeolite), and the last catalyst was bimetallic titanium and platinum with a titanium content of 1% and platinum content of 0.11% over HY zeolite (Pt.Ti/HY zeolite). All catalysts were tested with several tests, mainly X-Ray Diffraction (XRD), BET surface area, and pore volume. All these substances were applied as catalysts for the reforming process of Iraqi heavy naphtha at the following operating conditions: reaction temperature (480, 500, and 520 ), reaction pressure (10, 12.5, and 15 bar), liquid hourly space velocity (LHSV) at 2 hr-1, and constant hydrogen to hydrocarbon ratio (H2/ HC) of 4. All the reforming reactions occurred in a packed bed pilot plant reactor to investigate its stability and activity during the reforming process. All the developed catalyst samples showed sensational stability even at operating under difficult circumstances. The best catalyst was Pt.Ti/HY zeolite based on the results obtained with respect to the octane number (86.2) at 520 and 15 bar. Also, a mathematical model to describe the reforming process with high accuracy was built and simulated using gPROMS software. The results were very satisfying since the most significant error with the wt% of reformate was 4.9% (the experimental aromatics content was 23.94 wt.%, while the predicted result was 21.67 wt.%), while Research Octane Number (RON) error was 4.7% (the experimental RON was 81, whereas the predicted value of RON was 85) among all the results meaning that the simulating was valid to describe the process.
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| first_indexed | 2024-03-13T00:09:28Z |
| format | Article |
| id | doaj.art-40a84ce747ec49b9b187c173eb371897 |
| institution | Directory Open Access Journal |
| issn | 1813-162X 2312-7589 |
| language | English |
| last_indexed | 2024-03-13T00:09:28Z |
| publishDate | 2023-05-01 |
| publisher | Tikrit University |
| record_format | Article |
| series | Tikrit Journal of Engineering Sciences |
| spelling | doaj.art-40a84ce747ec49b9b187c173eb3718972023-07-12T19:21:42ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892023-05-0130210.25130/tjes.30.2.6Design of New Composites Nano-Catalysts for Naphtha Reforming Process: Experiments and Process ModelingAysar T. Jarullah0Ahmed Nabeel Ahmed1Ban Abdulrahman Ahmed2Abdullah M. Ahmed3Department of Chemical Engineering, College of Engineering, Tikrit University, Tikrit, Iraq. School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, United Kingdom.Department of Chemical Engineering/College of Engineering /Tikrit University/ Tikrit/ IraqPetroleum Research and Development Center, Ministry of Oil, Baghdad, Iraq.Department of Chemical Engineering/College of Engineering /Tikrit University/ Tikrit/ Iraq The naphtha catalytic reforming process is evaluated by designing new composite nano-catalysts. Three catalysts were prepared for this process. The first catalyst was molybdenum carbide composite with platinum over HY zeolite (Mo2C.Pt/HY zeolite), the second catalyst was molybdenum carbide composite with platinum over modified zeolite by cerium nitrate (Mo2C.Pt/CeY zeolite), and the last catalyst was bimetallic titanium and platinum with a titanium content of 1% and platinum content of 0.11% over HY zeolite (Pt.Ti/HY zeolite). All catalysts were tested with several tests, mainly X-Ray Diffraction (XRD), BET surface area, and pore volume. All these substances were applied as catalysts for the reforming process of Iraqi heavy naphtha at the following operating conditions: reaction temperature (480, 500, and 520 ), reaction pressure (10, 12.5, and 15 bar), liquid hourly space velocity (LHSV) at 2 hr-1, and constant hydrogen to hydrocarbon ratio (H2/ HC) of 4. All the reforming reactions occurred in a packed bed pilot plant reactor to investigate its stability and activity during the reforming process. All the developed catalyst samples showed sensational stability even at operating under difficult circumstances. The best catalyst was Pt.Ti/HY zeolite based on the results obtained with respect to the octane number (86.2) at 520 and 15 bar. Also, a mathematical model to describe the reforming process with high accuracy was built and simulated using gPROMS software. The results were very satisfying since the most significant error with the wt% of reformate was 4.9% (the experimental aromatics content was 23.94 wt.%, while the predicted result was 21.67 wt.%), while Research Octane Number (RON) error was 4.7% (the experimental RON was 81, whereas the predicted value of RON was 85) among all the results meaning that the simulating was valid to describe the process. https://tj-es.com/ojs/index.php/tjes/article/view/1008Molybdenum CarbideHeavy NaphthaBimetallic Catalyst |
| spellingShingle | Aysar T. Jarullah Ahmed Nabeel Ahmed Ban Abdulrahman Ahmed Abdullah M. Ahmed Design of New Composites Nano-Catalysts for Naphtha Reforming Process: Experiments and Process Modeling Tikrit Journal of Engineering Sciences Molybdenum Carbide Heavy Naphtha Bimetallic Catalyst |
| title | Design of New Composites Nano-Catalysts for Naphtha Reforming Process: Experiments and Process Modeling |
| title_full | Design of New Composites Nano-Catalysts for Naphtha Reforming Process: Experiments and Process Modeling |
| title_fullStr | Design of New Composites Nano-Catalysts for Naphtha Reforming Process: Experiments and Process Modeling |
| title_full_unstemmed | Design of New Composites Nano-Catalysts for Naphtha Reforming Process: Experiments and Process Modeling |
| title_short | Design of New Composites Nano-Catalysts for Naphtha Reforming Process: Experiments and Process Modeling |
| title_sort | design of new composites nano catalysts for naphtha reforming process experiments and process modeling |
| topic | Molybdenum Carbide Heavy Naphtha Bimetallic Catalyst |
| url | https://tj-es.com/ojs/index.php/tjes/article/view/1008 |
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