Improved Apparatus for Dynamic Column Breakthrough Measurements Relevant to Direct Air Capture of \ceCO2}

Published

May 23, 2023

Author(s)

William Sean McGivern, Huong Giang Nguyen, Jeffrey A. Manion

Abstract

Dynamic column breakthrough (DCB) measurements are valuable tools in characterizing sorbents and are typically used for high concentrations of adsorptives. Adsorbents for the direct capture of carbon dioxide from air demand measurement capability over a wide range of inlet temperatures, pressures, relative humidities, at extremely low partial pressures. We have developed a new apparatus focused on the measurement of DCB curves for sorbents at temperatures and pressures that span typical tropospheric conditions. The new apparatus is described in detail and adsorption capacities are reported at (233.1 to 323.1) K and (351 to 1078} hPa for low carbon dioxide concentrations on samples on the order of a few hundred milligrams. An analysis of uncertainties in timing, flow, temperature, and concentrations is provided. In addition, experiments at a typical atmospheric CO2 concentration have been performed, and breakthrough curves are presented.

Citation

Industrial and Engineering Chemistry Research

Volume

62

Issue

21

Pub Type

Journals

Download Paper

https://doi.org/10.1021/acs.iecr.2c04050

Local Download

Keywords

direct air capture, carbon dioxide, adsorption, dynamic column breakthrough

Citation

McGivern, W. , Nguyen, H. and Manion, J. (2023), Improved Apparatus for Dynamic Column Breakthrough Measurements Relevant to Direct Air Capture of \ce{CO2}, Industrial and Engineering Chemistry Research, [online], https://doi.org/10.1021/acs.iecr.2c04050, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935522 (Accessed October 14, 2025)