Optimization and Evaluation of Preparation Process of Activated Carbon Loaded ZrO₂ Catalyst for Oxidative Desulfurization

Abstract:

This paper studied how DBT oxidation was influenced by different preparation conditions of diesel desulfurization catalyst. Fuel oil oxidation and desulfurization technology has been studied by using solid superacid prepared by activated carbon loaded SO42-/ ZrO2 as catalyst instead of the traditional liquid acid, hydrogen peroxide as oxidant, in mild conditions. Impacting factors on removal sulfur have been investigated such as soaking time, burning temperature, burning time, active ingredient content and concentration of sulfuric acid, etc. The results show that soaking time is 6h, burning temperature is 500 °C, burning time is 2.5h, the mass ratio of the active ingredient is 3:100 ZrO2 and activated carbon, sulfuric acid concentration is 0.5mol/L. The desulfurization rate is over 93% and raffinate oil recovery can reach more than 86% under this optimum condition.

• Periodical: Advanced Materials Research (Volume 936)
• Pages: 881-886
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.936.881
• Online since: June 2014
• Authors: Chong Yang*, Ying Fei Hou, Min Liu, Ning Guo, Jian Hui Zhang
• Keywords: Activated Carbon, Catalyst, Oxidation Desulfurization, SO₄^2-/ZrO₂

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