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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Effects of Operating Variables on CO Conversion of WGS Catalyst in a Fluidized Bed Reactor Equipped with Bed Insert

내부 삽입물을 적용한 유동층 반응기에서 WGS 촉매의 CO 전화율에 미치는 조업변수들의 영향

  • Received : 2014.03.08
  • Accepted : 2014.04.30
  • Published : 2014.04.30
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Abstract

To enhance the performance of SEWGS system by holding the WGS catalyst in a SEWGS reactor, a spring type bed insert was developed. In this study, effects of operating variables such as steam/CO ratio, gas velocity, syngas concentration on CO conversion were investigated in a fluidized bed reactor using the spring type bed insert to hold the WGS catalyst as tablet shape. CO conversion increased initially as the steam/CO ratio increased. But further increment of the steam/CO ratio caused decreasing of CO conversion because of increment of gas velocity and decrement of syngas concentration. Moreover, CO conversion decreased as the gas velocity increased and the syngas concentration decreased at the same steam/CO ratio. Continuous operation up to 48 hours (2 days) was carried out to check reactivity decay of WGS catalyst supported by spring type bed insert. The average CO conversion was 99.04% and we could conclude that the WGS reactivity at those conditions was maintained up to 48 hours.

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References

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  1. Effect of Pre-treatment Method on Reactivity of WGS Catalyst for SEWGS System vol.25, pp.4, 2014, https://doi.org/10.7316/KHNES.2014.25.4.355
  2. CO Conversion Characteristics of WGS Catalysts for SEWGS System vol.26, pp.2, 2015, https://doi.org/10.7316/KHNES.2015.26.2.096