The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier

Kuo Lin; Zhongjie Shen; Qinfeng Liang; Jianliang Xu; Haifeng Liu

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The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier

Full Length Article | Updated：2026-01-06

- The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier
- The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier
- 中国化学工程学报（英文版） 2022年47卷第7期页码：271-281
- Affiliations：
  
  1. Shanghai Engineering Research Center of Coal Gasification, East China University of Science and Technology,Shanghai,China,200237
  2. Institute of Clean Coal Technology, East China University of Science and Technology,Shanghai,China,200237
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2022
- Accepted：
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Kuo Lin, Zhongjie Shen, Qinfeng Liang, 等. The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier[J]. 中国化学工程学报（英文版）, 2022,47(7):271-281.

Kuo Lin, Zhongjie Shen, Qinfeng Liang, Jianliang Xu, Haifeng Liu. The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier[J]. Chinese Journal of Chemical Engineering, 2022, 47(7): 271-281.
Kuo Lin, Zhongjie Shen, Qinfeng Liang, 等. The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier[J]. 中国化学工程学报（英文版）, 2022,47(7):271-281. DOI：

Kuo Lin, Zhongjie Shen, Qinfeng Liang, Jianliang Xu, Haifeng Liu. The study of the effect of gas-phase fluctuation on slag flow and refractory brick corrosion in the slag tapping hole of an entrained-flow gasifier[J]. Chinese Journal of Chemical Engineering, 2022, 47(7): 271-281. DOI：

摘要

Abstract

The service life of refractory brick in the slag tapping hole of the entrained flow gasifier was significantly lower than that in other locations. It was critically important to study the corrosion mechanism of refractory brick in the slag tapping hole for guiding industrial production. Considering the complex flow field in the slag tapping hole

the influence of gas velocity and temperature fluctuation on the service life of refractory brick was investigated in this study. The results showed that the slag flow characteristics periodically changed with the gas temperature and velocity fluctuations. The brick corrosion rate increased with the decrease of fluctuation frequency. Compared with the gas-phase velocity fluctuation

the gas-phase temperature fluctuation had a more significant influence on the brick corrosion rate. When the fluctuation frequency was 0.01 Hz and the gas temperature fluctuation amplitude was 200 K

the corrosion rate of refractory bricks increased by 25%. It could be concluded that the fluctuation of gas-phase temperature was the main cause for the low service life of refractory bricks in the tapping hole.

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