Mass Transfer of CO₂ in Amine-Functionalized Structured Contactors in Ultra-Dilute Conditions.

ABSTRACT: Extracting CO₂ from the atmosphere via direct air capture (DAC) provides a pathway to counteract the rising CO₂ concentration in the atmosphere. Processes using amine functionalized solid sorbents have attracted considerable attention, as they exhibit high affinity toward CO₂ at atmospheric concentrations. The process is significantly influenced by the mass transfer kinetics of adsorption, and accurate quantification is crucial for improving process models and DAC systems. In this study, we addressed this critical issue by quantifying the mass transfer kinetics of three amine functionalized structured sorbents: two alumina pellets with unimodal (TRI@unimodal) and bimodal (TRI@bimodal) pore size distributions, and a honeycomb mullite/alumina monolith (TRI@mo

SUBMITTER: Grossmann Q 

PROVIDER: S-EPMC11789152 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature