Nickel catalysts applied in steam reforming of glycerol for hydrogen production

BUFFONI IVANA; POMPEO FRANCISCO; SANTORI GERARDO; NICHIO NORA

CATALYSIS COMMUNICATIONS

ELSEVIER SCIENCE BV

Año: 2009 vol. 10 p. 1556 - 1560

1566-7367

In order  to  study  catalysts  to  obtain  hydrogen  by  steam  reforming of  glycerol, nicke catalysts supported on commercial Al2O3 and Al2O3 modified by addition of ZrO2 and CeO2 were prepared and characterized. Results show the support effect on stability of  catalysts  in  this  reaction  carried out  at  atmospheric pressure  and  in  the  range 350-600 C. The most stable system resulted to be Ni-CeO2-Al2O3. Results can be explained due  to  the  Ce  effect  in  inhibition  of  secondary  dehydration  reactions  forming unsaturated hydrocarbons that are coke precursors generating fast catalyst deactivation.