Coke and Chemistry

, Volume 61, Issue 9, pp 344–348 | Cite as

Thermodynamics of Hydrogen-Sulfide Conversion in a Claus Reactor in Coke-Oven Gas Desulfurization Circuit of MMK

  • O. I. PlatonovEmail author


For the Claus reactor of byproduct-capture shop 2 in the coke plant at PAO Magnitogorskii Metallurgicheskii Kombinat (MMK), thermodynamic calculation of the equilibrium hydrogen-sulfide conversion at 200–350°C is undertaken, in the following conditions: total mixture pressure 1.3 atm (130 kPa); initial Claus ratio CR = [H2S]/[SO2] = 1.5–10.0; initial hydrogen-sulfide concentration [H2S] = 0.3–6.5 vol %. When [H2S] ~ 1 vol %, the direction of equilibrium conversion is reversed. Accordingly, it is expedient to limit the number of catalytic stages in the processing of hydrogen sulfide on the basis of its initial concentration. In selecting the catalyst in the Claus reactor, it is expedient to take account of the characteristics of the gas being processed and to lower the Claus ratio to the working value CR ≤ 2.


coke-oven gas desulfurization sulfur-removal unit hydrogen-sulfide conversion Claus reactor thermodynamic analysis 



  1. 1.
    Egorov, V.N., Krinitsyn, E.N., Mel’nikov, I.I., Platonov, O.I., Tarasov, N.A., and Chistyakov, N.P., Specific ammonia decomposition and sulfur production during purification of coke gas at caking plant, Koks Khim., 2001, no. 12, pp. 14–19.Google Scholar
  2. 2.
    Gazimzyanov, N.R. and Platonov, O.I., Efficiency of a Claus furnace in the coke-oven gas desulphurization circuit of MMK, Coke Chem., 2017, vol. 60, no. 5, pp. 199–202.CrossRefGoogle Scholar
  3. 3.
    Gamson, B.W. and Elkins, R.H., Sulfur from hydrogen sulfide, Chem. Eng. Prog., 1953, vol. 49, no. 4, pp. 203–215.Google Scholar
  4. 4.
    Golubeva, I.A., Gazovaya sera: uchebnoe posobie (Gaseous Media: Manual), Moscow: Ross. Gos. Univ. Nefti Gaza im. I.M. Gubkina, 2015.Google Scholar
  5. 5.
    Grunval’d, V.V., Tekhnologiya gasovoi sery (Technology of Gaseous Sulfur), Moscow: Khimiya, 1992.Google Scholar
  6. 6.
    Gaikwad, R.W., Warade, A.R., and Bhagat, S.L., Hydrogen sulphid (H2S) gaseous control in Claus process, Int. J. Adv. Res., 2016, vol. 4, no. 4, pp. 664–669.CrossRefGoogle Scholar
  7. 7.
    Egorov, V.N., Mel’nikov, I.I., Platonov, O.I., and Tarasov, N.A., Improvement of coke gas desulfurization, Koks Khim., 2003, no. 1, pp. 26–29.Google Scholar
  8. 8.
    Platonov, O.I., Egorov, V.N., Krinitsyn, E.N., et al., Improvement of coke gas desulfurization technology, Koks Khim., 2005, no. 11, pp. 26–29.Google Scholar
  9. 9.
    Filatova, O.E., Kislenko, N.N., Krasheninnikov, S.V., Morgun, L.V., and Makhoshvili, Yu.A., RF Patent 2264978, Byull. Izobret., 2005, no. 33.Google Scholar
  10. 10.
    Filatova, O.E., Criteria for evaluating the effectiveness of catalysts for the production of gaseous sulfur, Trudy Moskovskogo seminara po gazokhimii 2002–2003 gg. “Aktual’nye problemy gazokhimii” (Proc. Moscow Seminar on Gas Chemistry 2002–2003 “Urgent Problems in Gas Chemistry”), Moscow: Ross. Gos. Univ. Nefti Gaza im. I.M. Gubkina, 2004, pp. 169–182.Google Scholar
  11. 11.
    Ayapbergenov, E.O., Production the elemental sulfur in Claus units from acid hydrogen sulfide, Sovrem. Nauchn. Issled., 2012, no. 10, pp. 40–43.Google Scholar
  12. 12.
    Iorish, V.S., Belov, G.V., and Yungman, V.S., Use of IVTANTERMO software package for Windows in thermodynamic analysis, Preprint of the Inst. for High Temperatures, Russ. Acad. Sci., Moscow, 1998, no. 8-415.Google Scholar
  13. 13.
    Shchurin, R.M., Onopko, T.V., Kalinina, N.V., and Pliner, V.M., Production of gaseous sulfur by Claus process, in Promyshlennaya i sanitarnaya ochistka gazov (Industrial and Sanitary Gas Purification), Moscow: Tsentr. Inst. Nauchno-Tekh. Inf. Tekhn.-Ekon. Issled. Khim. Neft. Mahsinostr., 1986.Google Scholar
  14. 14.
    Egorov, V.N., Krinitsyn, E.N., Platonov, O.I., Tarasov, N.A., and Chistyakov, N.P., RF Patent 2210536, Byull. Izobret., 2003, no. 23.Google Scholar

Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  1. 1.Koks i KhimiyaMoscowRussia

Personalised recommendations