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Hydrogen sulfide reformation in the presence of methane

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  • El-Melih, A.M.
  • Al Shoaibi, A.
  • Gupta, A.K.

Abstract

This paper provides experimental investigation on the potential of hydrogen production from hydrogen sulfide and methane mixtures in nitrogen. The reformation of H2S in natural gas represents a viable alternative option for the treatment of acid gases extracted from gas wells that contains H2S, CH4 and N2 in the gases without their separation, using for example, the amine process to remove H2S. A laboratory-scale quartz reactor was used to investigate experimentally the effect of temperature and inlet stream composition on the production of hydrogen from a mixture of hydrogen sulfide and methane diluted in nitrogen. The results reveal the important role of reactor temperature on the decomposition of both hydrogen sulfide and methane as well as the production of hydrogen. The results also showed that the production of hydrogen increased dramatically at temperatures exceeding 1473K wherein the conversion of hydrogen sulfide is more significant. The methane was consumed at temperatures above 1373K. The conversion of hydrogen sulfide in presence of methane was higher than that in case of hydrogen sulfide only. The carbon disulfide formed during the reformation process increased with increase in temperature. These results provide favorable reactor operational conditions for the reformation of methane with hydrogen sulfide. These results also provide a viable alternative option for the treatment of various waste streams containing hydrogen sulfide to produce clean hydrogen and sulfur.

Suggested Citation

  • El-Melih, A.M. & Al Shoaibi, A. & Gupta, A.K., 2016. "Hydrogen sulfide reformation in the presence of methane," Applied Energy, Elsevier, vol. 178(C), pages 609-615.
    • Handle: RePEc:eee:appene:v:178:y:2016:i:c:p:609-615
    DOI: 10.1016/j.apenergy.2016.06.053
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    References listed on IDEAS

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    1. Selim, H. & Gupta, A.K. & Al Shoaibi, A., 2012. "Effect of CO2 and N2 concentration in acid gas stream on H2S combustion," Applied Energy, Elsevier, vol. 98(C), pages 53-58.
    2. Selim, H. & Al Shoaibi, A. & Gupta, A.K., 2011. "Effect of H2S in methane/air flames on sulfur chemistry and products speciation," Applied Energy, Elsevier, vol. 88(8), pages 2593-2600, August.
    3. Selim, H. & Ibrahim, S. & Al Shoaibi, A. & Gupta, A.K., 2013. "Effect of oxygen enrichment on acid gas combustion in hydrogen/air flames under claus conditions," Applied Energy, Elsevier, vol. 109(C), pages 119-124.
    4. Selim, H. & Ibrahim, S. & Al Shoaibi, A. & Gupta, A.K., 2014. "Investigation of sulfur chemistry with acid gas addition in hydrogen/air flames," Applied Energy, Elsevier, vol. 113(C), pages 1134-1140.
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    Cited by:

    1. El-Melih, A.M. & Al Shoaibi, A. & Gupta, A.K., 2017. "Reformation of hydrogen sulfide to hydrogen in the presence of xylene," Applied Energy, Elsevier, vol. 203(C), pages 403-411.
    2. Wu, Angjian & Li, Xiaodong & Yan, Jianhua & Yang, Jian & Du, Changming & Zhu, Fengsen & Qian, Jinyuan, 2017. "Co-generation of hydrogen and carbon aerosol from coalbed methane surrogate using rotating gliding arc plasma," Applied Energy, Elsevier, vol. 195(C), pages 67-79.
    3. Elvira Spatolisano & Federica Restelli & Laura A. Pellegrini & Alberto R. de Angelis, 2024. "Waste to H 2 Sustainable Processes: A Review on H 2 S Valorization Technologies," Energies, MDPI, vol. 17(3), pages 1-37, January.
    4. Ipsakis, Dimitris & Kraia, Tzouliana & Konsolakis, Michalis & Marnellos, George, 2018. "Remediation of Black Sea ecosystem and pure H2 generation via H2S-H2O co-electrolysis in a proton-conducting membrane cell stack reactor: A feasibility study of the integrated and autonomous approach," Renewable Energy, Elsevier, vol. 125(C), pages 806-818.

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