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Applied Biochemistry and Biotechnology

, Volume 18, Issue 1, pp 341–354 | Cite as

Kinetics of biodesulfurization of a high-sulfur coal

  • A. E. Torma
  • T. M. Olsen
Session 4-Original Papers

Abstract

The apparent activation and deactivation energies and the corresponding frequency factors of coal desulfurization byThiobacillus ferrooxidans have been determined to be ΔE a = 60.9 kJ,A a = 1.45 s-1 and ΔEd = 178.3 kJ,A d = 5.65×1027 s-1, respectively. The thermo-dynamic values (AG, ΔH , and ΔS) of the activated complex were calculated. Kinetic parameters of the Monod equation were determined to beV m = 55.9 mg dm-3 h-1 andK = 24.1% pulp density. The maximum rate of desulfurization of coal was found to beV m = 55.7 mg dm-3 h-1 for the particle size. The generalized second order regression equation relating the yield of desulfurization to the leaching parameters was shown to adequately predict coal extraction data and optimum values of process variables. Tank leaching studies using optimum conditions resulted coal desulfurization about 90%. The iron hydrolysis reactions involving the formation of mono- and poly-nuclear, hydroxo- and sulfato complexes of amorphous and crystalline precipitates were discussed.

Index Entries

Coal desulfurization Thiobacillus ferrooxidans hydrolysis 

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References

  1. 1.
    Markuszewski, R., and Blaustein, B. D., eds. (1986),Fossil Fuels Utilization, ACS Symp., Ser. 319, Am. Chem. Soc., Washington, DC, pp. 2–85.Google Scholar
  2. 2.
    Wheelock, T. D. (1977),Coal Desulfurization, Chemical and Physical Methods, ACS Symp. Ser. 64, Am. Chem. Soc., Washington, DC, p. 132.Google Scholar
  3. 3.
    Meyers, R. A. (1977),Coal Desulfurization, Dekker, NY, p. 254.Google Scholar
  4. 4.
    Misagi, F. L. (1973),SME Mining Engineering Handbook, 5th ed., Soc. Min. Eng., Inc., NY, pp. 50–53.Google Scholar
  5. 5.
    Perry, R. H., and Chilton, C. H. (1973),Chemical Engineers Handbook, 5th ed., McGraw-Hill, NY, ch. 9, pp. 3–9.Google Scholar
  6. 6.
    Hoffman, M. R., Faust, B. C., Panda, F. A., Koo, H. H., and Tsuchiya, H. M. (1981),Appl. Envir. Microbiol. 42, 295.Google Scholar
  7. 7.
    Dugan, P. R. (1986),Biotechnol. Bioeng. Symp.,16, 185.Google Scholar
  8. 8.
    Kawatra, S. K., Eisle, T. C., and Bagley, S. (1987),Coal Desuljurization by Bacteria, Repr. No. 87-133, Soc. Mining Eng., Littleton, CO, pp. 1–7.Google Scholar
  9. 9.
    Dugan, P. R. (1984),Microbial Chemoautotrophy, Strohl, W. R., and Tuovinen, O. H. (eds.), Ohio State Univ. Press, Columbus, OH, pp. 3–9.Google Scholar
  10. 10.
    Olsen, T. M., Ashman, P. R., Torma, A. E., and Murr, L. E., (1980),Biogeochem. of Ancient and Modern Envir. (Trudinger, P. A., Walter, M. R., and Ralph, B. J., eds.), Springer Verlag, West Berlin, pp. 693–703.Google Scholar
  11. 11.
    Kargi, F. (1982),Biotechnol. Bioeng.,24, 749.CrossRefGoogle Scholar
  12. 12.
    Bos, P., Huber, T. F., Kos, C. H., Ras, C., and Kuenen, J. G. (1986),Fundamental and Applied Biohydrometallurgy (Laurence, R. W., Branion, R. M. R., and Ebner, H. G., eds.), Elsevier, Amsterdam, pp. 129–150.Google Scholar
  13. 13.
    Kargi, F., and Robinson, J. M. (1982),Biotechnol. Bioeng. 24, 2115.CrossRefGoogle Scholar
  14. 14.
    Kargi, F., and Robinson, J. M. (1985),Biotechnol. Bioeng. 27, 41.CrossRefGoogle Scholar
  15. 15.
    Murr, L. E., and Mehta, A. P. (1982),Biotechnol. Bioeng. 24, 743.CrossRefGoogle Scholar
  16. 16.
    Finnerty, W. R., and Robinson, M. (1986),Biotechnol. Bioeng. Symp.,16, 205.Google Scholar
  17. 17.
    Kargi, F. (1982),Enzyme Microb. Technol. 4, 13.CrossRefGoogle Scholar
  18. 18.
    Mishra, A. K., Roy, P., Roy-Makapatra, S. S., and Chandra, D. (1983),Rec. Prog, in Biohydromet., (Rossi, G., and Torma, A. E., eds.), Associazione Mineraria Sarda, Iglesias, Italy, pp. 491–510.Google Scholar
  19. 19.
    Kargi, F., and Robinson, J. M. (1984),Biotechnol. Bioeng.,24, 687.CrossRefGoogle Scholar
  20. 20.
    Kargi, F., and Robinson, J. M. (1986),Fuel,65, 397.CrossRefGoogle Scholar
  21. 21.
    Klubec, B., and Clark, D. (1986), Final Report of US Dept. of Energy. Contract No. DE-FC01-83Fe60339, S. IL. Univ., Carbondale, IL, pp. 1–19.Google Scholar
  22. 22.
    Kempton, A. G., Moneib, A., McCready, R. G. L., and Capes, C. E. (1980),Hydromet.,5, 117.CrossRefGoogle Scholar
  23. 23.
    Doddema, H. J. (1983),Rec. Prog. Biohydromet. (Rossi, G., and Torma, A. E., eds.), Associazione Mineraria Sarda, Iglesias, Italy, pp. 467–478.Google Scholar
  24. 24.
    Attia, Y. A., and ElZeky, M. A. (1985),Proc. and Util. of High Sulfur Coals (Attia, Y. A., ed.), Elsevier, Amsterdam, pp. 673–682.Google Scholar
  25. 25.
    Dogan, Z. M., Ozbayoglu, O., Hicyilmaz, C., Saridaya, M., and Ozcengiz, G. (1986),Fund, and Appl. Biohydromet. (Laurence, R. W., Branion, R. M. R., and Ebner, H. G., eds.), Elsevier, Amsterdam, pp. 165–170.Google Scholar
  26. 26.
    Torma, A. E., and Gundiler, I. H. (1986),First Int. Min. Proc. Symp., vol. 2, Mineral Processing, Izmir, Turkey, pp. 601–612.Google Scholar
  27. 27.
    Silverman, M. P., and Lundgren, D. G. (1959),J. Bacterial. 77, 642.CrossRefGoogle Scholar
  28. 28.
    Atkins, A. S. (1978),Met. Appl. Bact. Leaching and Rel. Microb. Phen. (Murr, L. E., Torma, A. E., and Brierley, J. A., eds.), Academic, NY, pp. 403–426.Google Scholar
  29. 29.
    Torma, A. E., and Gundiler, I. H. (1987),Bioleach. High Sulfur Coal, repr. no. 87-2, Soc. Min. Eng., Littleton, CO, pp. 1–8.Google Scholar
  30. 30.
    Do Rego Montiero Neto, O., and Torma, A. E. (1985),Microb. Effects on Metall. Proc. (Clum, J. A., and Haas, L. A., eds.), Metall. Soc., Warrendale, PA, pp. 15–33.Google Scholar
  31. 31.
    Singh, A. K., Torma, A. E., and Rossi, G. (1982),Res. Assoc. Miner. Sarda,87(1), 1, pp. 1–8.Google Scholar
  32. 32.
    Eisenthal, R., and Cornish-Bowden, A. (1974),Biochem. J.,139, 715.Google Scholar
  33. 33.
    Singh, A. K., Singh, A., and Torma, A. E. (1984),N. Mex. J. Sci.,24(2), 62.Google Scholar
  34. 34.
    Capes, E. E., Mcllhinney, A. E., Sirianni, A. F., and Puddington, I. E. (1973),CIM Bull. 66(739), 88.Google Scholar
  35. 35.
    Habashi, F. (1980),Prin. Extr. Metall., vol. 1, Gordon and Breach, NY, pp. 129–164.Google Scholar

Copyright information

© Humana Press Inc. 1988

Authors and Affiliations

  • A. E. Torma
    • 1
    • 2
  • T. M. Olsen
    • 1
    • 2
  1. 1.Department of Materials and Metallurgical EngineeringThe Sullivan Center for In-Situ Mining Research, R&DD
  2. 2.Institute of Mining and TechnologySocorro

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