STUDY ON AFFECTING FACTORS UPON BEHAVIOR OF CaSO<sub>4</sub>·2H<sub>2</sub>O CRYSTALLIZATION

XU Hongjian; PAN Weiguo; GUO Ruitang; ZHANG Xiaobo; LENG Xuefeng Department of Energy and Environment Engineering

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STUDY ON AFFECTING FACTORS UPON BEHAVIOR OF CaSO₄·2H₂O CRYSTALLIZATION

Thermal Power Generation Vol. 39, Issue 11, Pages: 45-48(2010)

更新时间：2025-09-28

- STUDY ON AFFECTING FACTORS UPON BEHAVIOR OF CaSO₄·2H₂O CRYSTALLIZATION
- 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：2010
- 稿件说明：
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XU Hongjian, PAN Weiguo, GUO Ruitang, et al. STUDY ON AFFECTING FACTORS UPON BEHAVIOR OF CaSO₄·2H₂O CRYSTALLIZATION[J]. Thermal Power Generation, 2010, 39(11): 45-48.
DOI：

XU Hongjian, PAN Weiguo, GUO Ruitang, et al. STUDY ON AFFECTING FACTORS UPON BEHAVIOR OF CaSO₄·2H₂O CRYSTALLIZATION[J]. Thermal Power Generation, 2010, 39(11): 45-48. DOI：

摘要

研究在湿法烟气脱硫工艺(WFGD)条件下二水硫酸钙的晶体生长规律及各因素对二水硫酸钙结晶特性的影响。研究表明

随着反应温度的升高

二水硫酸钙结晶诱导时间逐渐变短;金属杂质(铁、镁、铝离子)的加入影响二水硫酸钙晶体形态

降低了二水硫酸钙的脱水性能;添加相同摩尔浓度的金属杂质(铁、镁、铝离子)

抑制结晶能力排序为Al3+Fe3+Mg2+

Mg2+对诱导时间的影响基本可以忽略。

Abstract

The growth regularity of gypsum(CaSO4·2H2O) crystal under condition of wet flue gas desulphurization(WFGD) and the affecting factors upon crystallization of CaSO4·2H2O have been studied.The study shows that the induced time of CaSO4·2H2O crystallization is gradually shortened as the reaction temperature raises.The metallic impurities

such as ions of Fe

and Al

affect the state of CaSo4·2H2O crystal

decreasing the dewaterability of CaSO4·2H2O

the sequence of inhibiting ability to crystallization by similar mole concentration of metallic impurities is as follows:Al3+Fe3+Mg2+;the influence of Mg2+ upon the inducel time is basically negligble.

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STUDY ON AFFECTING FACTORS UPON BEHAVIOR OF CaSO4·2H2O CRYSTALLIZATION

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摘要

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关键词

Keywords

references

STUDY ON AFFECTING FACTORS UPON BEHAVIOR OF CaSO₄·2H₂O CRYSTALLIZATION