STUDIES ON CARBON DEPOSITION IN CO2 REFORMING OF METHANE OVER NICKEL CATALYSTS

Carbon deposition over nickel catalysts in methane reforming with carbon dioxide is one of the most important topics in catalysis. Carbon formation may increase the pressure drop, crush the catalyst pellets, block the active nickel surface and decrease the life time of catalyst. In this paper the carbon deposition over nickel catalyst supported on zirconia has been investigated in methane reforming with carbon dioxide. The microscopic analysis, along with TPH and TPO analyses confirmed that the CO disproportionation is one of the main steps for carbon generation in CO2 reforming.

Keywords:

Carbon formation , Dry reforming , Nickel catalyst