Low-Rank Coal Supported Ni Catalysts for CO2 Methanation

As renewable energy source integration increases, P2G technology that can store surplus power as methane is expected to expand. The development of a CO2 methanation catalyst, one the core processes concept, being actively conducted. In this work, low-rank coal (LRC) was used catalyst support for methanation, it potentially enhance diffusion and adsorption behavior by easily controlling pore structure composition. It also improve process efficiency owing its simplicity (no pre-reduction step) high thermal conductivity, compared conventional metal oxide-supported catalysts. A screening single metals (Ni, Co, Ru, Rh, Pd) on LRC performed, which showed Ni most active. When doped with promoter (Ce Mg), conversion percentage increased >10% catalyst. activity at 250–500 °C, Ce-doped Ni/Eco Mg-doped catalysts similar or better than commercial addition, catalytic performance remained stable even after test an extended time (~200 h). results XRD, TEM, TPR highly efficient LRC-based be made when dispersion composition are modified.