High-purity hydrogen production via sorption-enhanced steam methane reforming reaction: Experimental approach with multi-section packing concept

Chan Hyun Lee, Ki Bong Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hydrogen is highlighted due to its possibility as a new clean energy carrier and steam methane reforming (SMR) reaction has been applied for mass production of hydrogen. Since the produced hydrogen from reaction contains large amounts of impurity components such as unreacted reactants and byproducts, additional purification steps are needed to produce high-purity hydrogen. By applying sorption-enhanced reaction (SER) concept where reaction and byproduct CO2 removal are carried out simultaneously in a single reactor, the SMR reaction processes can be simplified, high-purity hydrogen can be produced directly, and also thermodynamic limitation of the conventional SMR reaction can be circumvented. In order to further improve SER performance, a multi-section packing concept was recently proposed. In this study, the multi-section packing concept was experimentally demonstrated in sorption-enhanced SMR (SE-SMR) reaction. The experimental results showed that SE-SMR reaction was significantly affected by reaction temperature due to conflicting dependence of reaction rate and CO2 sorption uptake on temperature. In addition, it was confirmed that more high-purity hydrogen could be produced by applying multi-section packing concept to SE-SMR reaction operated at sufficiently-high temperature where SMR reaction was not limited by rate.

Original languageEnglish
Title of host publication20th World Hydrogen Energy Conference, WHEC 2014
PublisherCommittee of WHEC2014
Pages1640-1646
Number of pages7
Volume3
ISBN (Print)9780000000002
Publication statusPublished - 2014
Event20th World Hydrogen Energy Conference, WHEC 2014 - Gwangju, Korea, Republic of
Duration: 2014 Jun 152014 Jun 20

Other

Other20th World Hydrogen Energy Conference, WHEC 2014
CountryKorea, Republic of
CityGwangju
Period14/6/1514/6/20

Keywords

  • CO sorption
  • High-purity hydrogen production
  • Multi-section packing
  • Sorption-enhanced steam methane reforming reaction

ASJC Scopus subject areas

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

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