2 figures.-- Work presented at the EHEC 2022, European Hydrogen Energy Conference 18-20 May, 2022. Madrid, Spain., Glycerol is a byproduct of biodiesel production accounting for 10 wt% of the final products [1]. Chemical Looping Reforming in a dynamically operated packed bed reactors system appears as a promising process to produce a syn-gas [2] that, when coupled with a CO2 sorbent (Sorption Enhanced Steam Reforming), produces high purity H2 gas stream. The energy required to drive the endothermic reforming reaction and the regeneration of the sorbent is supplied by the indirect oxyfuel combustion of a fuel gas stream via redox reactions of metallic oxides. In case of Fe or Ni based metallic oxides, sorbent regeneration would take place during the oxidation of the metallic Fe or Ni, producing a CO2/N2 stream while an steam/CO2 stream easy to concentrate through condensation is produced from the reduction stage. Other alternatives metallic oxides, as for example Cu, would allow producing a N2 stream from the oxidation stage while almost all the CO2 would exit the process from the reduction stage.
Within the umbrella of the H2020 project GLAMOUR Ref. 884197 [4] functional materials able to sustain the Sorption Enhanced glycerol reforming process have been synthesized and tested. Materials requirements include sufficient and stable oxygen transport capacity (OTC) and high catalytic activity at a relative low temperature maintained along redox cycles for the catalyst/oxygen carrier; while sufficient and stable oxygen CO2 carrying capacity is preferred for the CO2 sorbent., The work has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement no. 884197 (GLAMOUR project). The work reflects only the authors' views and the EU is not liable for any use that may be made of the information contained therein, Peer reviewed