Composition-activity relationship for Ni-Alkali/Alkaline earth metal unsupported catalysts in the CO2–SR technology.

Abstract

on CO2-SR technology is a cyclic process that combines the capture and storage of CO2 with its conversion to high-value compounds through catalyst regeneration with CH4 [1]. This process involves the use of a dual function catalyst that contains components for CO2 adsorption based on alkali and alkaline earth metals, as well as redox metal components for CO2 conversion. This contribution presents the experimental results of the incorporation of Ba, Ca, Sr and K to Ni as unsupported bimetallic catalytic systems, to analyze the structural and physicochemical properties and the effect on the CO2 storage and regeneration capacity.