Chem. eng. j. Chem. eng. j. Integrating capture and methanation of CO2 using physical mixtures of Na-Al2O3 and mono-/ bimetallic (Ru)Ni/Pr-CeO2 Tsiotsias Anastasios I. Charisiou Nikolaos D. Hussien Aseel G.S. Sebastian Victor Universidad de Zaragoza Polychronopoulou Kyriaki Goula Maria A. 2024 research-article