Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of H2S on Reactivity of Oxygen Carrier Particle for Chemical Looping Combustion

매체순환연소용 산소전달입자의 반응성에 미치는 H2S의 영향

  • Received : 2016.07.08
  • Accepted : 2016.08.30
  • Published : 2016.08.30
Download PDF
⟨ Previous Next ⟩

Abstract

Effect of $H_2S$ on reactivity of oxygen carrier was measured and discussed using fluidized bed reactor and SDN70 oxygen carrier. We could get 100% of fuel conversion and $CO_2$ selectivity even though $H_2S$ containing simulated syngas was used as fuel for reduction. Absorbed sulfur was released during oxidation and $N_2$ purge step after oxidation as $SO_2$ form. We could get 100% of fuel conversion and $CO_2$ selectivity during cyclic reduction-oxidation tests up to 10th cycle. However, only 6~7% of sulfur can be removed during oxidation and $N_2$ purge step and 93~94% of sulfur was accumulated in the oxygen carrier. Therefore we could conclude that total removal of sulfur was not possible. $SO_2$ emission during oxidation decreased as the number of cycle increased. Therefore we could expect that the reactivity of oxygen carrier will be decreased with time.

Keywords

References

  1. H. J. Ryu, "$CO_2$-NOx Free Chemical-looping Combustion Technology", KOSEN report, http://www.kosen21.org, 2003.
  2. H. J. Ryu, S. S. Park, J. H. Moon, W. K. Choi, Y. W. Rhee, "Effects of Temperature, Pressure, and Gas Residence Time on Methane Combustion Characteristics of Oxygen Carrier Particle in a Pressurized Fluidized bed Reactor", Trans. of the Korean Society of Hydrogen Energy, Vol. 23, No. 2, 2012, pp. 173-182. https://doi.org/10.7316/KHNES.2012.23.2.173
  3. H. J. Ryu, G. T. Jin, "Criteria for Selection of Metal Component in Oxygen Carrier Particles for Chemical-looping Combustor", Korean Chem. Eng. Res., Vol. 42, No. 5, 2004, pp. 588-597.
  4. H. Tian, T, Simonyi, J. Poston, R. Siriwadane, "Effect of Hydrogen Sulfide on Chemical Looping Combustion of Coal-Derived Synthesis Gas over Bentonite-dupported Meatal-Oxide Oxygen Carriers", Ind. Eng. Chem. Res., Vol. 48, 2009, pp. 8418-8430. https://doi.org/10.1021/ie900638p
  5. K. Wang, X. Tian, H. Zhao, "Sulfur Behavior in Chemical-Looping Combustion Using Copper Ore Carrier", Applied Energy, Vol. 166, 2016, pp. 84-95. https://doi.org/10.1016/j.apenergy.2016.01.011
  6. C. Dueso, M. T. Izquierdo, F. Garcia-Labiano, L. F. de Diego, A. Abad, "Effect of $H_2S$ on the Behavior of an Impregnated NiO-based Oxygen Carrier for Chemical-Looping Combustion (CLC)", Applied Catalysis B: Environmental, Vol. 126, 2012, pp. 186-199. https://doi.org/10.1016/j.apcatb.2012.07.011
  7. L. Shen, Z. Gao, J, Wu, J. Xiao, "Sulfur Behavior in Chemical Looping Combusrion with $NiO/Al_2O_3$ Oxygen Carrier", Combustion and Flame, Vol. 137, 2010, pp. 853-863.
  8. E. Ksepko, R. Siriwadane, H. Tan, T. Simonyi, M. Sciazko, "Comparative Investigation on Chemical Looping Combustion of Coal-Derived Synthesis Gas Containing $H_2S$ over Supported NiO Oxygen Carriers", Energy and Fuels, Vol. 24, 2010, pp. 4206-4214. https://doi.org/10.1021/ef100490m
  9. E. Ksepko, R. Siriwadane, H. Tian, T. Simonyi, M. Sciazko, "Effect of $H_2S$ on Chemical Looping Combustion of Coal-Derived Synthesis Gas Over Fe-Mn Oxides Supported on Sepiolite, $ZrO_2$ and $Al_2O_3$", Energy and Fuels, Vol. 26, 2012, pp. 2461-2472. https://doi.org/10.1021/ef201441k
  10. H. Kim, J. Park, J. I. Baek, H. J. Ryu, "Selection of Oxygen Carrier Candidates for Chemical Looping Combustion by Measurement of Oxygen Transfer Capacity and Attrition Loss", Trans. of the Korean Society of Hydrogen Energy, Vol. 27, No. 4, 2016, pp. 404-411. https://doi.org/10.7316/KHNES.2016.27.4.404
  11. G. B. Han, N. K. Park, S. O. Ryu and T. J. Lee, "The Reactivity for $SO_2$ Reduction with CO and $H_2$ over Sn-Zr Based Catalysts", Korean Chem. Eng. Res., Vol. 44, No. 4, 2006, pp. 356-362.
  12. H. J. Ryu, K. S. Kim, S. Y. Lee, Y. S. Park, M. H. Park, "Reduction Characteristics of Mass Produced Particle for Chemical Looping Combustor with Different Fuels", Trans. of the Korean Society of Hydrogen Energy, Vol. 19, No. 4, 2008, pp. 348-358.