Work

Improvement CO2 absorption of calcium-based by zirconia/alumina

Year: 2024

Type: conference-paper

Abstract: In the field of solid absorbents for CO2, the use of calcium-based waste for CO2 capture not only enables the resourceful use of waste but also reduces the cost of carbon dioxide capture. In this study, CaO was utilized as the calcium-based absorbent, while ZrO2 and Al2O3 were employed as modifiers. The properties of ZrO2/Al2O3/CaO composite absorber for cyclic CO2 absorption was investigated. The findings indicated that the concurrent addition of ZrO2 and Al2O3 could enhance the cyclic absorption stability and carbonation efficiency of CaO. The carbonation uptake efficiency of the absorber was enhanced by about 6% after the fifth absorption cycle compared with that without the addition of ZrO2 and Al2O3. The incorporation of ZrO2 and Al2O3 induced structural modifications in the calcium-based absorbent, providing support and separation between the CaO particles, thereby preventing void fusion. This enables the absorbent to maintain high activity and stability, while also delaying the sintering process of CaO.

DOI: 10.1117/12.3044455

Authors: Neng Guo, Dongdong Zhu, Xueyong Kou, Shuaipeng Li, Shengwen Chen, Zhiguo Sun

Institutions: Shanghai Polytechnic University, Hubei Academy of Environmental Sciences

Language: English

Topic: Carbon Dioxide Capture Technologies

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Climate action, Responsible consumption and production, Affordable and clean energy

Open Access status: gold

Funder: Shanghai Polytechnic University

Award: G3594715941