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Anaerobic Biodesulfurization of Kerosene Part I: Identifying a Capable Microorganism

S. A. Kareem

Published 2016 in Unknown venue

ABSTRACT

Kerosene is the main fuel for domestic use in Nigeria and some other developing countries. It is used in cooking in mostly in poorly ventilated kitchens. The combustion of kerosene produces oxides of nitrogen and sulfur which are precursors to acid rain which is known to destroy buildings, destroy vegetation and is also dangerous to human health. Desulfatiglans aniline comb, nov was isolated from petroleum products contaminated soil and subsequently evaluated for its ability to desulfurize kerosene. Kerosene obtained from retail outlet in Lagos, Nigeria was provided as the sole source of sulfur in batch cultures and the extent of desulfurization after treatment determined. The desulfurizing bacterium, Desulfatiglans anilini comb, nov., a strict anaerobe, gram negative and an oval to rod shaped bacterium was isolated by enrichment culture and subsequently identified at the Department of Microbiology, University of Lagos, Nigeria was also found to exhibit very high desulfurizing ability towards kerosene at 30°C and normal atmospheric pressure. The biodesulfurization of kerosene by Desulfatiglans anilini comb, nov., resulted in reduction of sulfur from 48.68 ppm to 12.32 ppm over a period of 72 hours. Gas chromatography analysis with a pulse flow photometric detector (PFPD) revealed that the peaks of Thiophene and 2, 5 – Dimethyl Thiophene significantly decreased after biodesulfurization. This study has been able to establish that Desulfatiglans anilini comb, nov., could effectively desulfurize kerosene and thus may be a promising biocatalyst for practical biodesulfurization of kerosene.

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    2016

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    Open on Semantic Scholar

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    Semantic Scholar

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