3 years ago

Bio-Energy with Carbon Capture and Storage (BECCS) potential: Production of high purity H2 from cellulose via Alkaline Thermal Treatment with gas phase reforming of hydrocarbons over various metal catalysts

Bio-Energy with Carbon Capture and Storage (BECCS) potential: Production of high purity H2 from cellulose via Alkaline Thermal Treatment with gas phase reforming of hydrocarbons over various metal catalysts
A novel Alkaline Thermal Treatment (ATT) reaction has been proposed as a unique bioenergy with carbon capture & sequestration (BECCS) approach. While our previous study demonstrated that high purity H2 can be produced from cellulose with a Ca(OH)2 and 10% Ni/ZrO2 mixture while suppressing CO2 formation, its complex reaction pathways are not understood. In order to decouple the solid and gas-phase catalytic reactions and improve the overall ATT of biomass, in-situ and ex-situ catalystic ATT reactions have been carried out. A screening of low loading Fe, Cu, Co, Pd, Pt and Ni catalysts showed that Ni was capable of significantly enhancing H2 production when placed in-situ or ex-situ. This suggested that the ATT of cellulose involves the reforming of intermediates (i.e., gaseous hydrocarbons) to H2. Catalyst development and reactor design should consider both solid-phase and gas-phase reactions in order to maximize the potential of this BECCS technology.

Publisher URL: www.sciencedirect.com/science

DOI: S0360319917332834

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