DISSOLUTION CHARACTERISTICS OF LIMESTONE DURING LIMESTONE-GYPSUM WET FLUE GAS DESULFURIZATION IN PRESENCE OF CITRIC ACID

GUO Ruitang; PAN Weiguo; ZHANG Xiaobo; ZHOU Yue; REN Jianxing; XU Hongjian Institute of Energy and Environment Engineering

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DISSOLUTION CHARACTERISTICS OF LIMESTONE DURING LIMESTONE-GYPSUM WET FLUE GAS DESULFURIZATION IN PRESENCE OF CITRIC ACID

更新时间：2025-09-28

- DISSOLUTION CHARACTERISTICS OF LIMESTONE DURING LIMESTONE-GYPSUM WET FLUE GAS DESULFURIZATION IN PRESENCE OF CITRIC ACID
- Thermal Power Generation Vol. 41, Issue 12, Pages: 74-77(2012)
- 作者机构：
  
  上海电力学院能源与环境工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701.3
- Published：2012
- 稿件说明：
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GUO Ruitang, PAN Weiguo, ZHANG Xiaobo, et al. DISSOLUTION CHARACTERISTICS OF LIMESTONE DURING LIMESTONE-GYPSUM WET FLUE GAS DESULFURIZATION IN PRESENCE OF CITRIC ACID[J]. Thermal power generation, 2012, 41(12): 74-77.
DOI：

GUO Ruitang, PAN Weiguo, ZHANG Xiaobo, et al. DISSOLUTION CHARACTERISTICS OF LIMESTONE DURING LIMESTONE-GYPSUM WET FLUE GAS DESULFURIZATION IN PRESENCE OF CITRIC ACID[J]. Thermal power generation, 2012, 41(12): 74-77. DOI：

摘要

采用pH-stat方法

研究了石灰石-石膏湿法烟气脱硫工艺中柠檬酸存在情况下石灰石的溶解特性

以及溶液pH值、搅拌速率、反应温度与柠檬酸浓度等因素对石灰石溶解特性的影响。结果表明

无论柠檬酸是否存在

石灰石溶解速率均由传质所控制;降低溶液pH值、增加搅拌速率和升高反应温度

均可增加石灰石溶解速率;当pH值≥5时

由于柠檬酸钙的形成

石灰石的溶解速率随柠檬酸浓度的升高而降低

并且随着pH值的增加柠檬酸抑制效果加强。

Abstract

Based on pH-stat method

dissolution characteristic of limestone for limestone-gypsum wet flue gas desulfurization in presence of citric acid was investigated.Furthermore

influence of factors such as pH value

stirring rate

reaction temperature and the concentration of citric acid on dissolution rate of limestone was analyzed.Results show that

the dissolution rate of limestone is always controlled by mass transfer

whether the citric acid exists or not;it increases with increasing stirring rate and reaction temperature;while when the pH value is equal to or higher than 5

the citric acid will inhibit the dissolution process of limestone due to the formation of calcium citrate

and the inhibition effect is more obvious at higher pH value.

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