YSZ-Ceria for chemical looping syngas production

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University of Alabama Libraries

The increase of carbon footprint over the years is a serious cause of concern for mankind in recent times. As a consequence, carbon capture and sequestration has been given unprecedented focus. Chemical looping combustion (CLC) is one of the novel methods of carbon capture. A rotary reactor developed recently for CLC has been discussed extensively. The applicability of the chemical looping process in syngas production has been studied in this experiment. Ceria is used as the oxygen carrier material and YSZ (Yttria-Stabilized Zirconia) as the support material. Gas productions at different temperatures are studied to have a generic understanding of the reactions at different temperatures. Chemical looping reaction is observed to be a good method for syngas production, involving lesser steps than most conventional methods. Ceria is found to be a good oxygen carrier material. It is further noted that the quantity of syngas produced is higher as reactions are carried out at higher temperatures. Syngas produced using the chemical looping process allows for direct capture and sequestration of CO2, making the process in turn carbon neutral, sustainable and environment friendly.

Electronic Thesis or Dissertation
Mechanical engineering