Chinese Journal of Applied Chemistry ›› 2023, Vol. 40 ›› Issue (12): 1726-1736.DOI: 10.19894/j.issn.1000-0518.230151
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Jie JI, Ming-Chun LI(), Cun-Liang SHEN, Xin YANG
Received:
2023-05-22
Accepted:
2023-11-13
Published:
2023-12-01
Online:
2024-01-03
Contact:
Ming-Chun LI
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mingchunlihlj@163.comSupported by:
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Jie JI, Ming-Chun LI, Cun-Liang SHEN, Xin YANG. Simulation of Aggregate Structure Evolution of Calcium-Based Absorbent Based on Sintering Mechanism[J]. Chinese Journal of Applied Chemistry, 2023, 40(12): 1726-1736.
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URL: http://yyhx.ciac.jl.cn/EN/10.19894/j.issn.1000-0518.230151
Parameter | Ds/(cm2·s-1)[ | Dv/(cm2·s-1)[ | Ω/cm3 [ | ψ/(°) | k/(J·K-1) | |
---|---|---|---|---|---|---|
Value | 8.5×10-11 | 1.667×10-15 | 1.5×10-4 | 1.72×10-23 | 5π/6~π | 1.38×10-23 |
Table 1 Calculation parameters in sintering model
Parameter | Ds/(cm2·s-1)[ | Dv/(cm2·s-1)[ | Ω/cm3 [ | ψ/(°) | k/(J·K-1) | |
---|---|---|---|---|---|---|
Value | 8.5×10-11 | 1.667×10-15 | 1.5×10-4 | 1.72×10-23 | 5π/6~π | 1.38×10-23 |
Time/s | rj·r-1 (38~75 μm)/% | rj·r-1 (75~150 μm)/% | rj·r-1 (150~180 μm)/% |
---|---|---|---|
60 300 600 | 33.81 45.24 50.30 | 25.66 34.98 39.09 | 20.55 28.55 31.93 |
Table 2 Sintering neck growth rate of different particle size sorbents at different time periods
Time/s | rj·r-1 (38~75 μm)/% | rj·r-1 (75~150 μm)/% | rj·r-1 (150~180 μm)/% |
---|---|---|---|
60 300 600 | 33.81 45.24 50.30 | 25.66 34.98 39.09 | 20.55 28.55 31.93 |
Fig.6 Model calculation results and experimental measurement results of structural evolution of sintered for 300 s pore under the control of different sintering mechanisms of calcium absorbers with different particle sizes of (A) 38~75 μm and (B) 75~150 μm
Fig.7 Model calculation results and experimental measurement results of structural evolution of sintered 600 s pore under the control of different sintering mechanisms of calcium absorbers with different particle sizes of (A) 38~75 μm and (B) 75~150 μm
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