Catalysis Letters, Vol.70, No.1-2, 23-26, 2000
On deactivation of CrOx/La2O3/ZrO2 catalyst during n-octane dehydrocyclisation. I. Investigation of dehydrogenation capability by the homomolecular H-D exchange of molecular hydrogen
Based on the time on stream dependence of product distribution during deactivation and on additional investigations of fresh and deactivated samples by the homomolecular H-D exchange of molecular hydrogen, it is concluded, that the deactivation during n-octane dehydrocyclisation on CrOx/La2O3/ZrO2 catalysts is caused by a decreasing dehydrogenation capability of the active surface and not by increasing mass transport resistance.