Comparison of Nickel Oxide Catalyst on Alumina and Activated Carbon Base to Separation Sulfur Dioxide Pollution through Reduction to Sulfur in Reaction with Methane

Document Type : Research paper

Authors

1 chemical engineering

2 Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran

3 Chemical engineerin, Amir Kabir Uni.

4 chemical engineering , Amir Kabir

5 cupper sarcheshmek Co.

Abstract

Separation of sulfur dioxide by a new environmentally friendly method through its reduction to sulfur was investigated. Nickel catalyst was synthesized on two bases of alumina and activated carbon, using a wet impregnation method. Both catalyst series in two combinations of different percentages of nickel metal were synthesized, characterized and their performance in the reactor test in terms of conversion rate and selectivity for the desired product were compared. The effect of reaction temperature was investigated in the range of 550-800 °C. At low temperatures, activated carbon-nickel catalysts have better performance than the alumina-nickel catalyst.
Effect of molar feed ratio of SO2/CH4= 3-1 was studied and stoichiometric feed ratio showed the best performance. Also, investigation of reaction time for catalysts showed a good long-term stability for SO2 reduction with methane in 8 hours.
Keywords: SO2 reduction to sulfur, Separation of Sulfur Dioxide pollutant, Alumina-nickel catalyst, active carbon-nickel catalyst, catalist and reaction

Keywords

Main Subjects

References

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Journal of Separation Science and Engineering
Volume 11, Issue 2
January 2020
Pages 86-97

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