Application of one-body hybrid solid pellets to sorption-enhanced water gas shift reaction for high-purity hydrogen production

Chan Hyun Lee, Ki Bong Lee

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Interest in hydrogen, regarded as a new clean energy carrier, has been increasing with expectation of the approaching hydrogen economy. In the hydrogen economy, hydrogen will replace the conventional fuels that have caused pollution problems. As one of the methods for the mass production of hydrogen, water gas shift (WGS) reaction (CO + H2O 虠 H2 + CO2) has been highlighted for synthesis gas feed, which is produced by coal and biomass gasification. Recently, the performance of WGS reaction has been improved significantly through application of the sorption-enhanced WGS (SE-WGS) reaction concept, where WGS reaction and CO2 sorption are carried out simultaneously. High-purity hydrogen can be directly produced through the SE-WGS reaction, without need for further purification processes. In the SE-WGS reaction, uniform packing of the mixture of catalyst and sorbent is important; however, this is difficult to manage with conventional catalyst and sorbent pellets. In this study, novel one-body hybrid solid pellets consisting of the mixture of catalyst and sorbent were prepared to address this shortcoming and applied to SE-WGS reactions. From experiments, the effect of different ratio of catalyst/sorbent in one-body hybrid solid pellets was studied. A novel multi-section packing concept was also applied to SE-WGS reaction with one-body hybrid solid pellets. The experimental results showed that one-body hybrid solid pellets can be successfully used and that multi-section packing can increase the hydrogen productivity in SE-WGS reaction.

Original languageEnglish
Pages (from-to)18128-18134
Number of pages7
JournalInternational Journal of Hydrogen Energy
Issue number31
Publication statusPublished - 2014 Oct 22

Bibliographical note

Funding Information:
This research was supported by the Energy Efficiency and Resources R&D program ( 2011201020004A ) and the Human Resources Development Program ( 20114010203050 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government's Ministry of Trade, Industry & Energy . The authors also acknowledge the Korea Research Council of Fundamental Science and Technology (KRCF) for the additional support received from the National Agenda Program (NAP).

Publisher Copyright:
© 2014 Hydrogen Energy Publications, LLC.


  • CO sorption
  • Hydrogen production
  • Multi-section packing
  • One-body hybrid solid pellet
  • Sorption-enhanced water gas shift reaction

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology


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