Catalytic Activity of Synthesized 2D MoS2/Graphene Nanocomposite for the Hydrodesulfurization of Naphtha

Document Type : Original Article

Authors

1 department of applied chemistry, faculity of chemistry, university of tehran, tehran, iran

2 Department of applied chemistry, faculity of chemistry, university of mazandaran, babolsar, iran

10.22036/cr.2021.292398.1149

Abstract

In this study, Hydrodesulfurization (HDS) process was used to remove sulfur compounds from refined petroleum products such as naphtha. 2D MoS2/G nanocomposite and nano MoS2 catalysts were prepared via ball-milling system and characterized by XRD, Raman spectroscopy, XPS, SEM, TEM, STEM, ICP, BET surface, TPR and NH3-TPD techniques. During the HDS process, the performance of the synthesized catalysts was investigated and then the optimal HDS catalyst was selected and evaluated to mitigate the operating conditions. The results indicated that 2D MoS2/G nanocomposite catalyst reduced the total sulfur content in naphtha from 2500 ppm to 0 ppm in facile operating conditions, which maintained a higher conversion rate compared to industrial catalysts in milder operating conditions. Also, the effect of surface area, pore diameter and acidity of nanocatalysts on the performance of hydrogen desulfurization activity has been investigated. The results showed that the higher the surface area, porosity and nanocatalyst acidity, the better the efficiency of hydrogen desulfurization process.
Keywords: Hy

Graphical Abstract

Catalytic Activity of Synthesized 2D MoS2/Graphene Nanocomposite for the Hydrodesulfurization of Naphtha

Keywords

References

  1. Kouravand S, Kermani AM. Clean power production by simultaneous reduction of NOx and SOx contaminants using Mazut Nano-Emulsion and wet flue gas desulfurization. J Clean Prod 2018;201:229–35.
  2. Liu X, Li X, Yan Z. Facile route to prepare bimodal mesoporous γ-Al 2O 3 as support for highly active CoMo-based hydrodesulfurization catalyst. Appl Catal B Environ 2012;121–122:50–6.
  3. Tanimu A, Alhooshani K. Advanced Hydrodesulfurization Catalysts: A Review of Design and Synthesis. Energy and Fuels 2019;33:2810–38.
  4. Yu Shi, Gang Wang, Jinlin Mei, Chengkun Xiao, Di Hu, Aocheng Wang, Yidong Song YN, Guiyuan Jiang and AD. The Influence of Pore Structure and Acidity on the Hydrodesulfurization of Dibenzothiophene over NiMo-Supported Catalysts. ACS Omega 2020;5:15576−15585.
  5. Bataille F, Lemberton JL, Michaud P, Pérot G, Vrinat M, Lemaire M, et al. Alkyldibenzothiophenes hydrodesulfurization-promoter effect, reactivity, and reaction mechanism. J Catal 2000;191:409–22.
  6. Rashidi F., Sasaki T., Rashidi A.M., Nemati Kharat A. JKJ. Ultradeep hydrodesulfurization of diesel fuels using highly efficient nanoalumina-supported catalysts: Impact of support, phosphorus, and/or boron on the structure and catalytic activity. J Catal 2013;299.
  7. Hajjar Z, Kazemeini M, Rashidi A, Bazmi M. Graphene based catalysts for deep hydrodesulfurization of naphtha and diesel fuels: A physiochemical study. Fuel 2016;165:468–76.
  8. Xu J, Guo Y, Huang T, Fan Y. Hexamethonium bromide-assisted synthesis of CoMo/graphene catalysts for selective hydrodesulfurization. Appl Catal B Environ 2019;244:385–95.
  9. Soltanali S, Mohaddecy SRS, Mashayekhi M, Rashidzadeh M. Catalytic upgrading of heavy naphtha to gasoline: Simultaneous operation of reforming and desulfurization in the absence of hydrogen. J Environ Chem Eng 2020;8:104548.
  10. Mahmoudabadi ZS, Tavasoli A, Rashidi A, Esrafili M. Catalytic activity of synthesized 2D MoS2/graphene nanohybrids for the hydrodesulfurization of SRLGO: experimental and DFT study. Environ Sci Pollut Res 2021;28:5978–90.
  11. Shuo Li, Yibin Liu, Xiang Feng, Xiaobo Chen CY. Insights into the reaction pathway of thiophene hydrodesulfurization over corner site of MoS2 catalyst: A density functional theory study. Mol Catal 2019;463:45–53.
  12. Saleh TA. Applying Nanotechnology to the Desulfurization Process in Petroleum Engineering - Knovel. IGI Glob 2016. https://app.knovel.com/web/toc.v/cid:kpANDPPE01/viewerType:toc/ (accessed September 10, 2021).
  13. Abid, M.F., Ahmed, S.M., Abohameed WH et al. Study on Hydrodesulfurization of a Mixture of Middle Distillates. Arab J Sci Eng 2018;43:5837–5850.
  14. Huirache-Acuna, B. Pawelec, C.V. Loricera, E.M. Rivera-Munoz, R. Nava, B. Torres JLGF. Comparison of the morphology and HDS activity of ternary Ni(Co)- Mo-W catalysts supported on Al-HMS and Al-SBA-16 substrates. Appl Catal B Environ 2012;125:473–85.
  15. Jae Hyung Kim, Xiaoliang Ma and CS. Kinetics of Two Pathways for 4,6-Dimethyldibenzothiophene Hydrodesulfurization over NiMo, CoMo Sulfide, and Nickel Phosphide Catalysts. Energy & Fuels 2005;19:353–64.
  16. Stolyarova EA, Danilevich VV, Klimov OV, Gerasimov EY, Ushakov VA, Chetyrin IA, et al. Comparison of alumina supports and catalytic activity of CoMoP/γ-Al2O3 hydrotreating catalysts obtained using flash calcination of gibbsite and precipitation method. Catal Today 2020;353:88–98.
  17. Fan J, Zhang H, Xiao C, Mei J, Shi Y, Duan A, et al. Tuning physicochemical properties of hierarchically ZSM-5/FDU-12 composite material and its catalytic hydrodesulfurization performance for diesel. Catal Today 2021;374:162–72.
  18. Cao J, Xia J, Zhang Y, Liu X, Bai L, Xu J, et al. Influence of the alumina crystal phase on the performance of CoMo/Al2O3 catalysts for the selective hydrodesulfurization of fluid catalytic cracking naphtha. Fuel 2021;289:119843.
  19. Yue S, Xu D, Sheng Y, Yin Z, Zou X, Wang X, et al. One-step synthesis of mesoporous alumina-supported molybdenum carbide with enhanced activity for thiophene hydrodesulfurization. J Environ Chem Eng 2021;9:105693.
  20. Huirache-Acuña R, Pawelec B, Rivera-Muñoz EM, Guil-López R, Fierro JLG. Characterization and HDS activity of sulfided Co Mo W/SBA-16 catalysts: Effects of P addition and Mo/(Mo + W) ratio. Fuel 2017;198:145–58.
  21. Wang H, Liu S, Govindarajan R, Smith KJ. Preparation of Ni-Mo2C/carbon catalysts and their stability in the HDS of dibenzothiophene. Appl Catal A Gen 2017;539:114–27.

 

Iranian Journal of Chemistry
Volume 4, Issue 2 - Serial Number 7
February 2022
Pages 163-169

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History

  • Receive Date: 02 July 2021
  • Revise Date: 12 September 2021
  • Accept Date: 14 September 2021

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