List of Articles Oxidative desulfurization

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  1 - Synthesis and application of Ti-incorporated mesoporous silicate in deep oxidesulfurization of DBT from liquid fuel
  Masoumeh Ezati Shohreh Fatemi Maede Salmasi
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  2 - Catalytic oxidative desulfurization of dibenzothiophene by heterogeneous M2+/Al-layered double hydroxide (M2+ = Zn, Mg, Ni) modified zinc oxide
  Nur Ahmad Nova Yuliasari Fitri Arsyad Idha Royani Risfidian Mohadi Aldes Lesbani
  10.30495/ijc.2023.1972458.1973
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  3 - Oxidative Desulfurization of Gas Condensate by Molybdenum-Based Polyoxometalates
  Zohre Taherkhani Mohammad Hasan Ghetmir Mahmood Andache
  10.30495/jacr.2022.687730
  The presence of sulfur compounds in gas condensate is one of the problems in the field of fuel. In this study, the oxidative desulfurization (ODS) process of gas condensate of Ilam refinery was completely studied using molybdenum-based polyoxometalates catalyst. The cat More

  The presence of sulfur compounds in gas condensate is one of the problems in the field of fuel. In this study, the oxidative desulfurization (ODS) process of gas condensate of Ilam refinery was completely studied using molybdenum-based polyoxometalates catalyst. The catalyst was synthesized using a simple method and characterized by FTIR and BET tests. The ODS catalytic activity of gas condensate with total sulfur of 3780 ppm was evaluated in the presence of peroxide hydrogen. The effect of catalyst amount, oxidizing agent amount and operating parameters including temperature, time and type of extraction solvent was investigated on the efficiency of ODS process and solvent effectiveness factor. The results showed that the highest conversion and effectiveness factor were 97.4 % and 8.11, respectively under optimal conditions of catalyst amount of 0.02 wt.% relative to the condensate, the oxidizing agent amount of 6.64 wt.%, temperature of 70 °C and reaction time of 3 h in the presence of dimethylformamide solvent. At this condition, the total sulfur content of the gas condensate reduced from 3780 to 100 ppm. The results showed that the efficiency of ODS process is firstly increased by increasing the temperature and catalyst molar ratio, and then the inverse trend is observed. It was concluded that the reaction time had a positive effect on ODS efficiency. Also, the kinetics and mechanism of ODS reaction were discussed and the mean constant desulfurization rate of ODS was obtained to be 0.022 min-1. Manuscript profile
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  4 - Optimizing oxidative desulfurization of diesel of Tehran Refinery using acid catalysts in the presence of hydrogen peroxide
  mahsa khorshidnia Amir Farshi Manocher Bahmaei
  10.30495/jacr.2023.1968690.2062
  In this research, desulfurization of diesel from Tehran Refinery was investigated by oxidation method. To investigate this process, the performance of different advanced oxidation systems (acetic acid/hydrogen peroxide, formic acid/hydrogen peroxide) along with acetonit More

  In this research, desulfurization of diesel from Tehran Refinery was investigated by oxidation method. To investigate this process, the performance of different advanced oxidation systems (acetic acid/hydrogen peroxide, formic acid/hydrogen peroxide) along with acetonitrile extraction were investigated for desulfurization of diesel fuel with 13370 ppm primary sulfur in a discontinuous reactor. The effect of different operating factors such as molar ratio of acid to sulfur (nacid/ns) (15, 20, and 25), molar ratio of hydrogen peroxide (oxidant) to sulfur (no/ns) (5, 10, and 15), temperature and also reaction time were investigated. Many tests showed that in the optimal conditions for removing sulfur from gas oil with the acetic acid/hydrogen peroxide system, the amount of sulfur reached to 9130 ppm with an efficiency of 31%, and with the formic acid/hydrogen peroxide system, the amount of sulfur reached to 2500 ppm with an efficiency of 81%. Also, the examination of the experiments confirmed this point that it is not possible to completely remove the sulfur from heavy oil fractions such as diesel with normal oxidative desulfurization methods. Manuscript profile