Experimental research on desulfurization performance of magnesium slag in circulating fluidized bed boiler

DUAN Liping; KOU Binda; JI Kedan; ZHENG Xianrong; JIN Yan

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Experimental research on desulfurization performance of magnesium slag in circulating fluidized bed boiler

Thermal Power Generation Vol. 45, Issue 1, Pages: 82-86(2016)

更新时间：2025-09-28

- Experimental research on desulfurization performance of magnesium slag in circulating fluidized bed boiler
- 作者机构：
  
  1. 太原理工大学电气与动力工程学院
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.66
- Published：2016
- 稿件说明：
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DUAN Liping, KOU Binda, JI Kedan, et al. Experimental research on desulfurization performance of magnesium slag in circulating fluidized bed boiler[J]. Thermal Power Generation, 2016, 45(1): 82-86.
DOI：

DUAN Liping, KOU Binda, JI Kedan, et al. Experimental research on desulfurization performance of magnesium slag in circulating fluidized bed boiler[J]. Thermal Power Generation, 2016, 45(1): 82-86. DOI：

摘要

研究镁渣的脱硫性能对于降低电厂脱硫成本、减轻环境污染、实现"以废治废"具有重要意义。本文采用XRD、TGA以及扫描电镜对镁渣的成分组成、实验室条件下的脱硫性能以及脱硫反应前后的形貌变化进行了试验研究。结果表明:镁渣经过自然冷却后

其主要成分为γ-硅酸二钙;在实验室条件下

脱硫过程钙转化率随反应温度的升高而增加;镁渣表面形貌的变化说明发生了脱硫反应。在某循环流化床(CFB)锅炉上的实际应用结果表明

当钙硫摩尔比为2.45时

镁渣脱硫效率达62.7%。

Abstract

Investigations on desulphurization performance of magnesium slag has great significance on reducing the desulphurization cost of power plant

releasing the air pollution and realizing wastes' utilization.By X-ray diffraction(XRD)analyzer

thermogravimetric analyzer(TGA)and scanning electron microscopy(SEM)

this paper observed the composition of the magnesium slag and experimentally studied its desulphurization performance under laboratory conditions.The results show that

the main component of the magnesium slag naturally cooled isγ-Ca2SiO4.Under laboratory conditions

the calcium conversion rate increased with the reaction temperature

and the change of the magnesium slag's surface morphology after the reaction verifies the desulpurization did occurred.Finally

taking a circulating fluidized bed(CFB)boiler as the object

the magnesium slag was used for desulpurization.The application results show that

when the mole ratio of calcium to sulfur was 2.45

the desulfurization efficiency of the magnesium reached 62.7%.

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