Work

CO2 Desorption Characteristics of Zeolite A/X and CMS-240 under Thermal, Vacuum and CH4 Purging Regeneration Conditions

Year: 2026

Type: article

Abstract: CO2 desorption performance is critical for adsorbent regeneration and process design in CO2 capture systems. This work compared CO2 desorption behaviours of 13X, 4A, 5A zeolites and CMS-240 under thermal, vacuum and CH4 purging conditions. CMS-240 achieved excellent regeneration, with CO2 desorption exceeding 90% under all conditions. For zeolites, pore size had a higher influence on regeneration performance than cation type. During CH4 purging, the total purge volume primarily governed the desorption ratio. Among the tested adsorbents, 13X exhibited the highest CO2 working capacity (3.650 mmol g–1) under thermal regeneration at 200 ºC, providing valuable guidance for adsorbent selection and regeneration optimisation.

Source: Asian Journal of Chemistry

DOI: 10.14233/ajchem.2026.36269

Authors: Yihuai Hua, Xiaojin Wen, Weiping Zeng, Xue Zhang, Qingbo Su, Jianfeng Tang

Institutions: China National Offshore Oil Corporation (China), Shanghai Power Equipment Research Institute, China University of Petroleum, East China

Language: English

Topic: Carbon Dioxide Capture Technologies

Subfield: Filtration and Separation

Field: Chemical Engineering

Domain: Physical Sciences

SDG: Climate action

Open Access status: diamond

Funders: China University of Petroleum, Beijing, Fundamental Research Funds for the Central Universities