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New approach to unsupported ReS2 nanorod catalyst for upgrading of heavy crude oil using methane as hydrogen source

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Mahmoudabadi, Zohal Safaei
Rashidi, Alimorad

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Highly active ReS2 nanocatalysts were prepared by CVD method and characterized by XRD, BET -BJH, Raman spectroscopy, XPS, TPR, NH3-TPD, SEM, and HRTEM techniques. Catalytic activities were used in upgrading heavy crude oil using methane as hydrogen source. The results showed a significant increase in API and decrease in sulfur and nitrogen content of crude oil. RSM technique was used to investigate the interactive effects of temperature (200-400 degrees C), pressure (20-40 bar) and dosage of nanocatalyst (0.5-2 wt. %) on the performance of HDS reaction. The results represent that the maximum predicted HDS activity (74.375%) was estimated under the optimal conditions (400 degrees C, 20 bars, and 2 wt % of nanocatalyst). Also, the effect of reaction temperature, pressure and dosage of ReS2 nanorods catalyst on HDN of heavy crude oil was investigated and highest efficiency in the HDN process (93%) occurred at 400 degrees C and 40 bar using 2 wt % ReS2.

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Pergamon-Elsevier Science Ltd

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Chemistry, Physical chemistry, Electrochemistry, Energy, Fuels

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International Journal Of Hydrogen Energy

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10.1016/j.ijhydene.2020.11.077

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