Understanding the Role of Mono and Ternary Alkali Metal Salts on CO₂ Uptake of MgO Sorbents.

ABSTRACT: CO₂ uptake by MgO-based sorbents at intermediate temperatures is attractive for pre- and post-combustion CO₂ capture applications. However, besides the high CO₂ uptake potential of these materials (1.1 g CO₂ g^-1 sorbent), in practice, the realistic CO₂ capture is far from that of the theorical values. In this work, the sol-gel method was used to synthetize unsupported and supported MgO sorbents (10% Ca^- or 10% Ce^- support, mol) that were impregnated with different fractions (15, 25, and 35; % mol) of a NaNO₃ single salt or a ternary alkali salt (NaNO₃, LiNO₃ and KNO₃ (18/30/52; % mol)). To understand the role of alkali metal salts (AMSs) in the MgO sorbents' p

SUBMITTER: Correia P 

PROVIDER: S-EPMC10744914 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature