Improvement of iron based oxygen carriers for chemical looping hydrogen

Robert Zacharias, Sebastian Bock, Viktor Hacker

Research output: Contribution to conferencePoster

Abstract

Decentralized hydrogen production via fixed bed chemical looping offers the opportunity for an emission free economy based on hydrogen. The cyclic process consists of the reduction of an iron based oxygen carrier with syngas from biofuels or methane at 800 °C and the following oxidation with steam to produce high purity pressurized hydrogen with efficiencies up to 80%. The alternating reduction and oxidation reactions at high temperatures lead to oxygen carrier deactivation processes due to the high material stress. An applicable oxygen carrier synthesis route has to be found that combines high cyclic stability with economic feasibility.
Original languageEnglish
Publication statusPublished - 4 Apr 2018
EventMinisymposium Verfahrenstechnik 2018 - Johannes Kepler Universität Linz, Linz, Austria
Duration: 4 Apr 20184 Apr 2018
http://www.chemical-engineering.at/conference/index.php/miniVT/2018/index

Conference

ConferenceMinisymposium Verfahrenstechnik 2018
CountryAustria
CityLinz
Period4/04/184/04/18
Internet address

Keywords

  • hydrogen
  • chemical looping hydrogen
  • oxygen carrier
  • iron oxide
  • thermogravimetric analysis

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