Catalytic performance of Ni/CaO-Ca12Al14O33 catalyst in the green synthesis gas production via CO2 reforming of CH4

•A novel 15 wt.%Ni-CaO/Ca12Al14O33 catalyst was obtained by impregnation/calcination/reduction method.•The catalyst exhibited high catalytic performances in DRM process.•The high basicity of the catalyst due to in situ formed CaO promoter dispersed on Ca12Al14O33 carrier improved carbon resistance compared to 15 wt.% Ni /γ-Al2O3 reference catalyst.