H_2 and CO production over a stable Ni-MgO-Ce_(0.8)Zr_(0.2)O_2 catalyst from CO_2 reforming of CH_4

摘要

Ni-Ce_(0.8)Zr_(0.2)O2 and Ni-MgO-Ce_(0.8)Zr_(0.2)O2 catalysts were investigated for H_2 production from CO_2 reforming of CH_4 reaction at a very high gas hourly space velocity of 480,000 h~(-1). Ni-MgO-Ce_(0.8)Zr_(0.2)O2 exhibited higher catalytic activity and stability (CH_4 conversion >95% at 800 ℃ for 200 h). The outstanding catalytic performance is mainly due to the basic nature of MgO and an intimate interaction between Ni and MgO.