Preparation of Nano-Copper Oxide and Removal of Hydrogen Sulfide under Room Temperature

Abstract:

In this paper, nanocopper oxide is prepared by complexing-precipitate, and the influence of different process parameters on the removal of H₂S performance are studied, and make a comparison for two other methods. The results indicate that different complexing agent, the molar ratio of Cu²⁺/OH^- and calcination temperature, etc., effect the desulfurization activity of nanocopper oxide. nanocopper prepared under optimum conditions (the complexing agent is ammonia, the molar ratio of Cu²⁺/OH^- is 1:3.0, calcination temperature is 400 °C) exhibits best desulfurization activity with a H₂S breakthrough time of 235 min, this is much longer than that prepared by hydrothermal method and sol-gel method with breakthrough time of H₂S only 20 min and 50 min, respectively; XRD analysis shows that the big grain size of nanocopper oxide and low purity are not in favor of H₂S adsorption at room temperature.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 583-588
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.583
• Online since: October 2013
• Authors: Fen Li, Guang Hui Yang, Tao Lei, Sheng Yu Yang, Yan Hong Wang, Yue Wang, Lian Peng Jia
• Keywords: Desulfurization, Hydrogen Sulfide, Nano-Copper Oxide

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DOI: 10.1021/ie901223j