Pure Ni-Based and Trimetallic Ni-Co-Fe Catalysts for the Dry Reforming of Methane: Effect of K Promoter and the Calcination Temperature

This work investigates the effect of Potassium promoter and calcination temperature on catalytic activity in dry reforming methane reaction compares performance Ni, Co, Fe–Al2O3 trimetallic catalysts with reference Ni–Al2O3. Although higher was achieved Ni–Al2O3, resulted a more favorable CO/H2 ratio considerably better coke resistance. Higher led to increase formation which caused sintering catalysts. Promoting samples 0.5%K order improve resistance, reduced activity.