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- Title
Numerical simulation on adsorption of CO<sub>2</sub> using K<sub>2</sub>CO<sub>3</sub> particles in the bubbling fluidized bed.
- Authors
Wang, Shuyan; Kuang, Guangjun; Shao, Baoli; Chen, Xi; Xie, Lei; Ma, Yimei
- Abstract
With the increase of greenhouse gas emissions, global warming has become an urgent problem, and the use of solid adsorbents to capture CO2 gas in flue gas has attracted more and more attention. In this study, the process of CO2 capture by K2CO3 particles in the bubbling fluidized bed (BFB) is numerically simulated with Eulerian–Eulerian(E–E) two fluid model incorporating with the kinetic theory of granular flows (KTGF). The results are verified through a detailed comparison with experimental data from Ayobi et al. Furthermore, Regarding the fundamental factors influencing CO2 adsorption rate is revealed, diminishing the inlet gas superficial velocity and augmenting the particle size of the solid adsorbent both contribute to improve adsorption performance. Specifically, the adsorption rate increases from 76.7% to 81.7% at the gas superficial velocity reducing from 1.10 to 0.71 m/s, while the adsorption rate from 77.6% to 79.7% with the particle size ranging from 400 to 600 μm. Additionally, the study delves into an exploration of fluid dynamic characteristics pertaining to gas particles within the bubbling fluidized bed while systematically considering varied inlet gas superficial velocities and particle sizes.
- Subjects
CARBON sequestration; GRANULAR flow; FLUE gases; COMPUTER simulation; GLOBAL warming; GREENHOUSE gases; CARBON dioxide adsorption
- Publication
Asia-Pacific Journal of Chemical Engineering, 2024, Vol 19, Issue 3, p1
- ISSN
1932-2135
- Publication type
Article
- DOI
10.1002/apj.3041