Research on the carbon deposition characteristics of the metal oxygen carrier.

TGA (Thermal Gravimetric Analysis) was used to research on Ni-based, Fe-based, Cu-based and Co-based prepared oxygen carriers, and the TG test curves reflect the carbon deposition characteristics of different prepared oxygen carriers and indicate that the Cu-based oxygen carrier can restrain carbon deposition to some extent. When combustion reaction of CO was conducted in the tube furnace, adopting the method of feeding water vapour into the furnace can avoid carbon deposition effectively. Finally, the XRD (X-Ray Diffraction) was used to scan the reaction product to evaluate the anti-carbon effect of the experiment. Compared with the no steam condition, it can be found that the characteristic peaks of carbon are disappeared on feeding steam condition, and carbon deposition controlled by the addition of steam is confirmed further. [ABSTRACT FROM AUTHOR]