| 脱硫石膏热分解特性及其动力学参数研究 |
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| 引用本文： | 章静,卢平.脱硫石膏热分解特性及其动力学参数研究[J].环境工程,2011,29(6):61-64. |
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| 作者姓名： | 章静 卢平 |
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| 作者单位： | 南京师范大学能源与机械工程学院,南京,210042 |
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| 基金项目： | 国家自然科学基金(51076067); 江苏省自然科学基金(BK2010081) |
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| 摘 要： | 采用热分析仪,研究了氮气气氛下分析纯石膏、干法脱硫石膏和湿法脱硫石膏的热重特性,并利用Coast-Redfern法计算了三种石膏的动力学参数。结果表明：三种石膏的分解过程可分为干燥、结晶水脱除、杂质分解和硫酸钙分解等四个阶段;三种石膏中硫酸钙的起始分解温度在1 000～1 200℃之间,且两种脱硫石膏的起始分解温度比分...
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| 关 键 词： | 脱硫石膏 热重分析 热分解 动力学 Coast-Redfern法 |
STUDY ON THERMAL DECOMPOSITION CHARACTERISTICS AND KINETIC PARAMETERS OF GYPSUM |
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| Zhang Jing Lu Ping.STUDY ON THERMAL DECOMPOSITION CHARACTERISTICS AND KINETIC PARAMETERS OF GYPSUM[J].Environmental Engineering,2011,29(6):61-64. |
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| Authors: | Zhang Jing Lu Ping |
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| Institution: | Zhang Jing Lu Ping(School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China) |
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| Abstract: | Decomposition characteristics and kinetics of analytical gypsum(AG),dry flue gas desulphurization gypsum(DG) and wet FGD gypsum(WG) were studied by using thermal analyzer in a nitrogen atmosphere.Kinetic parameters(such as activation energy E and frequency factor A) of thermal decomposition of AG,DG and WG were calculated based on TG-DTA curves and Coast-Redfern method.The results showed that the decomposition of gypsums consists of four stages,including dry,crystal water removal,deposition of impurities,an... |
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| Keywords: | FGD gypsum thermogravimetric analyzer thermal decomposition kinetics Coast-Redfern method |
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