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A preliminary cost analysis of the biotreatment of refinery spent-sulfidic caustic

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Abstract

Caustics are used in petroleum refining to remove hydrogen sulfide from various hydrocarbon streams. Spent-sulfidic caustics from three refineries have been successfully biotreated on the bench and pilot scale, resulting in neutralization and removal of active Sulfides. Sulfides were completely oxidized to sulfate byThiobacillus denitrificans strain F. Microbial oxidation of sulfide produced acid, which at least partially neutralized the caustic. A commercial-scale treatment system has been designed that features a bioreactor with a suspended culture of flocculatedT. denitrificans, a settler and acid and nutrient storage and delivery systems. A cost analysis has been performed for nine cases representing a range of spent caustic sulfide and hydroxide concentrations at a base treatment rate of 10 gpm. This analysis shows that refinery spent-sulfidic caustic can be biotreated for 4-8.3¢/gal.

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References

  1. Bechok, M. R. (1967),Aqueous Wastes from Petroleum and Petrochemical Plants, John Wiley, New York.

    Google Scholar 

  2. Rajganesh, B. and Sublette, K. L. (1995),Biotechnol. Prog. 11, 228–230.

    Article  CAS  Google Scholar 

  3. Rajganesh, B., Sublette, K. L., and Camp, C. (1995),Appl. Biochem. Biotechnol. 51/52, 661–671.

    Article  CAS  Google Scholar 

  4. Ongcharit, C., Dauben, P., and Sublette, K. L. (1989),Biotechnol. Bioeng. 33, 1077–1080.

    Article  CAS  Google Scholar 

  5. Sublette, K. L. (1987),Biotechnol. Bioeng. 29, 690–695.

    Article  CAS  Google Scholar 

  6. Kolhatkar, A. and Sublette, K. L.Appl. Biochem. and Biotechnol, in press.

  7. Lee, C. and Sublette, K. L. (1993),Water Res. 27^(5), 839–846.

    Article  Google Scholar 

  8. Hasan, S., Rajganesh, B., and Sublette, K. L. (1994),Appl. Biochem. and Biotechnol. 45/46, 925–934.

    Google Scholar 

  9. Raterman, K. T. and Sublette, K. L. (1994), SPE 26396.

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Authors and Affiliations

  1. Center for Environmental Research & Technology, University of Tulsa, 600 S. College Avenue, 74104, Tulsa, OK

    Kerry L. Sublette

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  1. Kerry L. Sublette
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Sublette, K.L. A preliminary cost analysis of the biotreatment of refinery spent-sulfidic caustic. Appl Biochem Biotechnol 63, 695–706 (1997). https://doi.org/10.1007/BF02920468

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  • DOI: https://doi.org/10.1007/BF02920468

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