Sorption-enhanced CO2 methanation to SNG: optimizing conditions in a Ni-Fe/Al2O3 fixed bed reactor

Abstract

This abstract is about the analysis of reaction conditions in which SESaR process to obtain Synthetic Natural Gas (SNG) is carried out. The experiments were done in a fixed bed reactor, with an alumina-supported Ni-Fe catalyst, and the examined parameters were as follows: the ratio [catalyst weight / gas flowrate] (W/Q₀), reaction temperatures (both while feeding biogas and when feeding only the reactants CO₂ and H₂) and, when introducing H₂ and CO₂, the proportions between these reactants. Moreover, the existence of deactivation, as well as its causes, are proven in long-term experiments.