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Enhancement of biodesulfurization by Pseudomonas delafieldii in a ceramic microsparging aeration system

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Abstract

A 700 ml membrane-aerated, stirred glass reactor equipped with four vertical baffles was constructed. Biodesulfurization of model oil (n-dodecane containing dibenzothiophene—DBT) and hydrodesulfurized diesel was carried out using Pseudomonas delafieldii strain R-8. Microbubble aeration gave an activity of 1.3 mg DBT removed g−1 h−1 and 277 μg sulfur g−1 h−1 for model oil and hydrodesulfurized diesel, respectively. These values were 1.9- and 1.6-times higher than using a traditional bubble aeration process. This is a promising method for the biodesulfurization of petroleum feedstocks.

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Acknowledgment

This work was supported by the National Natural Science Foundation of China (No. 20976186).

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Authors and Affiliations

  1. College of Materials Science and Opto-Electronic Technology, Graduate University of Chinese Academy of Sciences, Beijing, 100049, China

    Xing Lin & Feiyan Zhu

  2. Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China

    Huizhou Liu, Xuetuan Wei & Qiang Li

  3. Technology Transfer Center, Institute of Microbiology, Chinese Academy of Sciences, No. 10 Bei Si Huan West Road, Haidian District, Beijing, 100190, China

    Mingfang Luo

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  1. Xing Lin
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  2. Huizhou Liu
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  3. Feiyan Zhu
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  4. Xuetuan Wei
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  5. Qiang Li
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  6. Mingfang Luo
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Correspondence to Mingfang Luo.

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Lin, X., Liu, H., Zhu, F. et al. Enhancement of biodesulfurization by Pseudomonas delafieldii in a ceramic microsparging aeration system. Biotechnol Lett 34, 1029–1032 (2012). https://doi.org/10.1007/s10529-012-0872-0

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  • DOI: https://doi.org/10.1007/s10529-012-0872-0

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