Oxidative dehydrogenation of ethane to ethylene over LiCl/MnOx/PC catalysts

The catalytic stability of LiCl/MnOx/PC catalyst have been investigated, th e deactivation mechanism was discussed. The experimental results show that ethane conversion decreases and ethylene selectivity keeps about 90% as rea ction time increases. The main deactivation reasons of LiCl/MnOx/PC catalys t for oxidative dehydrogenation of ethane (ODHE) to ethylene are the transi tion of active species Mn2O3 to MnO species and the loss of arrive componen t Cl in catalyst. instead of ethane with FCC tailed-gas, the stability of L iCl/MnOx/PC catalyst has been largely improved.