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Kinetics of sulfur transfer from H2S to Fe1-xS

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Abstract

The rate of sulfur transfer across the gas/solid interface involving H2S(g) and Fe1-xS surface has been investigated using resistance relaxation measurements at 600°C. The rate of the oxidation reaction incorporating sulfur into Fe1-xS has been found to decrease with sulfur activity (aS) in the sample as (aS)-2/3, while the rate of the reduction reaction corresponding to sulfur loss is found to increase with the sulfur activity as (aS)1/3. The kinetic finding has been combined with the appropriate defect models for FeS to identify the rate limiting step for the sulfur transfer reaction from H2S to FeS. Accordingly, the rate limiting step has been identified to be: H2S(g) + 2e-\rightleftharpoons S2-(ad) + H2(g).

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References

  1. W.L. Worrell and E.T. Turkdogan, Trans. TMS-AMIE. 242 (1968) 1673.

    CAS  Google Scholar 

  2. H.G. Grabke, Mater. Eng. 42 (1980) 91.

    Article  CAS  Google Scholar 

  3. J. Oudar, Mater. Eng. 42 (1980) 101.

    Article  CAS  Google Scholar 

  4. V.K. Pareek, T.A. Ramanarayanan, J.D. Mumford and A. Ozekcin, Catal. Lett. 27 (1994) 11.

    Article  CAS  Google Scholar 

  5. V.K. Pareek, T.A. Ramanarayanan and J.D. Mumford, J. Electrochem. Soc. 142 (1995) 1784.

    Article  CAS  Google Scholar 

  6. W.L. Worrell and H.I. Kaplan, in: Heterogeneous Kinetics at Elevated Temperatures, eds., G.R. Belton and W.L. Worrell (Plenum Press, New York, 1970) p. 113.

    Google Scholar 

  7. L.J. van der Pauw, Philips Research Reports 13 (1958) 1.

    Google Scholar 

  8. E.M. Fryt, V.S. Bhide, W.W. Smeltzer and J.S. Kirkaldy, J. Electrochem. Soc. 126 (1979) 683.

    Article  CAS  Google Scholar 

  9. E.M. Fryt, W.W. Smeltzer and J.S. Kirkaldy, J. Electrochem. Soc. 126 (1979) 673.

    Article  CAS  Google Scholar 

  10. H. Kobayashi and C. Wagner, J. Chem. Phys. 26 (1957) 1609.

    Article  CAS  Google Scholar 

  11. F.A. Kröger, The Chemistry of Imperfect Crystals (North-Holland/Wiley, Amsterdam/New York, 1964).

    Google Scholar 

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Authors
  1. V.K. Pareek
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  2. T.A. Ramanarayanan
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  3. J.D. Mumford
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Pareek, V., Ramanarayanan, T. & Mumford, J. Kinetics of sulfur transfer from H2S to Fe1-xS. Catalysis Letters 46, 223–228 (1997). https://doi.org/10.1023/A:1019091107183

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