期刊名称：International Journal of Environmental Science and Development
印刷版ISSN：2010-0264
出版年度：2016
卷号：7
期号：7
页码：486-489
DOI：10.18178/ijesd.2016.7.7.825
摘要：AbstractTiO2-based catalysts are widely used in Claus units in natural gas-processing plants, for the conversion of hydrogen sulfide to elemental sulfur. As a result of the constant reaction cycles the catalyst suffered sulfur deposition on its active sites, resulting in a decrease of its catalytic activity. In this work a biodesulfurization process on a TiO2 spent catalyst was performed. Physicochemical characterization of the catalyst by scanning electron microscopy, X-ray diffraction, specific surface area, and elemental analysis was performed. Thiobacillus thiooxidans was the microorganism employed to eliminate the sulfur from the spent catalyst. A sulfur reduction of 60 wt.% was obtained following 30 days of treatment.
关键词：Acidithiobacillus thiooxidans ; microbial desulfurization; spent catalyst; TiO 2
