Study on fluorine removal efficiency and surface morphology of organic calcium fluorine removal additive for coal combustion

LIU Jing; XIANG Yi; LIU Jianzhong

doi:10.19666/j.rlfd.201909228

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Study on fluorine removal efficiency and surface morphology of organic calcium fluorine removal additive for coal combustion

Thermal Power Generation Vol. 49, Issue 2, Pages: 65-70(2020)

更新时间：2025-09-28

- Study on fluorine removal efficiency and surface morphology of organic calcium fluorine removal additive for coal combustion
- 作者机构：
  
  1. 郑州职业技术学院建筑工程系
  2. 西安航天动力研究所
  3. 西安航天源动力工程有限公司
  4. 浙江大学能源清洁利用国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201909228
  CLC： TK16
- Published Online：15 January 2020，
  
  Published：2020
- 稿件说明：
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LIU Jing, XIANG Yi, LIU Jianzhong. Study on fluorine removal efficiency and surface morphology of organic calcium fluorine removal additive for coal combustion[J]. Thermal Power Generation, 2020, 49(2): 65-70.
DOI：

LIU Jing, XIANG Yi, LIU Jianzhong. Study on fluorine removal efficiency and surface morphology of organic calcium fluorine removal additive for coal combustion[J]. Thermal Power Generation, 2020, 49(2): 65-70. DOI： 10.19666/j.rlfd.201909228.

摘要

在煅烧实验台上研究了醋酸钙镁(CMA)、醋酸钙(CA)和丙酸钙(CP)3种有机钙在不同煅烧温度和时间下煅烧产物的比表面积和表面形态

得出了有机钙固氟效果的变化规律

以及不同有机钙最佳固氟效果的温度和时间窗口。结果表明:不同煅烧温度下有机钙煅烧产物的比表面积随温度升高呈现出先升后降的趋势

并在900℃时达到最大值;3种样品中CMA煅烧产物的比表面积最大

固氟能力最好;不同煅烧时间下有机钙煅烧产物的比表面积随时间延长呈现出先增大后减小的趋势

且煅烧产物比表面积越大时

烧结现象对有机钙固氟能力的不利影响越大;煅烧产物的微观表面形态变化也进一步证实了固氟能力的变化规律。

Abstract

The specific surface area and surface morphology of calcium magnesium acetate(CMA)

calcium acetate(CA) and calcium propionate(CP) calcinated at different temperatures and with different incineration times were studied on a calcination experiment table. The change law of fluorine fixing effect of the organic calcium

and the temperature and time window for the optimum fluorine-fixing effect of different organic calcium were obtained. The results showed that

the specific surface area of the calcinated products of the organic calcium increased at first and then decreased with the increasing calcination temperature

and reached the maximum at 900 ℃. The calcinated products of the CMA had the largest specific surface area and the best fluorine removal efficiency among the three samples. The specific surface area of the calcinated products of the organic calcium increased at first and then decreased with time

and the greater the specific surface area of the calcinates

the greater the adverse effect of sintering on the fluorine removal efficiency. The change of the microscopic surface morphology of the calcinates confirmed the change rule of the fluorine removal ability.

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