Numerical study of pore structure effect on SO<sub>2</sub>-CaO reactions

Liang Ma; Liyong Cao; Rong He

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Numerical study of pore structure effect on SO₂-CaO reactions

催化、动力学与反应工程 | Updated：2026-01-06

- Numerical study of pore structure effect on SO₂-CaO reactions
- Numerical study of pore structure effect on SO₂-CaO reactions
- 中国化学工程学报（英文版） 2015年23卷第4期页码：652-658
- Affiliations：
  
  2 Dongfang Electric Corporation,Chengdu,China,611731
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- 纸质出版：2015
- Accepted：
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Liang Ma, Liyong Cao, Rong He. Numerical study of pore structure effect on SO₂-CaO reactions[J]. 中国化学工程学报（英文版）, 2015,23(4):652-658.

-CaO reactions[J]. Chinese Journal of Chemical Engineering, 2015, 23(4): 652-658.
Liang Ma, Liyong Cao, Rong He. Numerical study of pore structure effect on SO₂-CaO reactions[J]. 中国化学工程学报（英文版）, 2015,23(4):652-658. DOI：

-CaO reactions[J]. Chinese Journal of Chemical Engineering, 2015, 23(4): 652-658. DOI：

摘要

Abstract

The effect of varying pore structures on the kinetics of SO

-CaO reactions is not fully understood in the previous studies. Combining fractal pore model

gas molecular movement model and two-stage reaction model

a new desulfurization model is established in this paper. Fractal pore model is used to simulate CaO particle and gas molecular movement model is used to simulate gas diffusion in pores. Fractal dimension is used to characterize complexity of pore structure instead of tortuosity factor. It is found that the reaction is significantly affected by pore structures. A modulus ø is introduced to characterize the relationship between varying pore structures and apparent reaction parameters. And this relationship is verified by thermo-gravimetric analysis (TGA) data. Comparing to the previous models

the effect of varying pore structure on the kinetics of the reaction is described more accurately by the desulfurization model.

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Numerical study of pore structure effect on SO2-CaO reactions

Numerical study of pore structure effect on SO2-CaO reactions

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Numerical study of pore structure effect on SO₂-CaO reactions

Numerical study of pore structure effect on SO₂-CaO reactions