A study of non-isothermal kinetics of limestone decomposition in air (O2/N2) and oxy-fuel (O2/CO2) atmospheres

Tian, Luning; Chen, Hanping; Chen, Zhenhui; Wang, Xianhua; Zhang, Shihong

doi:10.1007/s10973-013-3316-8

Cited by 17 publications

(1 citation statement)

References 37 publications

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“…At 850 °C, a significant decrease in Cl release was observed when limestone was used as the bed material. Yin and Tian stated that CaO can be produced by decomposition of CaCO 3 above 800 °C and that it is more likely to react with HCl. The decrease in Cl release is therefore mainly attributed to the reaction between HCl and CaO …”

Section: Resultsmentioning

confidence: 99%

Release of K and Cl and Emissions of NO_x and SO₂ during Reed Black Liquor Combustion in a Fluidized Bed

Bie²,

Zhang

et al. 2017

Energy Fuels

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For predicting and relieving ash-related problems and harmful gas emissions during fluidized bed combustion, release of K and Cl and emissions of NO x and SO 2 during reed black liquor (BL) combustion in a fluidized bed were investigated in this study. The effects of bed material (calcium-based zeolite and limestone) and bed temperatures (700−900 °C) were also studied. The results showed that higher temperature favored the K release for both calcium-based zeolite and limestone, and calcium-based zeolite caused lower K release due to the formation of K 3 Al(SO 4 ) 3 , KAl(SO 4 ) 2 , and K 2 O-Al 2 O 3 -SiO 2 eutectic compounds. Cl was mainly released in the form of HCl above 700 °C. Moreover, high temperature facilitated Cl release for calcium-based zeolite, whereas it had a complicated effect on Cl release for limestone. Although higher temperature increased the NO x emission for both calcium-based zeolite and limestone, limestone resulted in higher NO x emission due to the conversion of fuel N to NO x under CaO catalysis. Temperature had a slight effect on SO 2 emission for calcium-based zeolite, whereas it decreased the SO 2 emission for limestone. Reed BL combustion generated lower SO 2 emissions with the help of Na 2 CO 3 and K 2 CO 3 , and limestone resulted in much lower SO 2 emission with the help of CaCO 3 and CaO.

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Section: Resultsmentioning

confidence: 99%

Release of K and Cl and Emissions of NO_x and SO₂ during Reed Black Liquor Combustion in a Fluidized Bed

Bie²,

Zhang

et al. 2017

Energy Fuels

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Estimation of kinetic parameters for the phase change memory materials by DSC measurements

Шерченков

Kozyukhin

Бабич

2014

J Therm Anal Calorim

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Thermodynamics and kinetics of the thermal decomposition of cupric chloride in its hydrolysis reaction

Wang

Marin²,

Naterer

et al. 2014

J Therm Anal Calorim

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The hydrolysis of copper (II) chloride is the water splitting process in the copper-chlorine thermochemical hydrogen production cycle. In this paper, a simultaneous differential scanning calorimetry and thermogravimetric analysis (DSC / TGA) technique is used to determine the transitional temperature and kinetics of the thermal decomposition of CuCl2. Thermodynamic analysis is performed on the decomposition reaction for a comparison with the thermogravimetric analysis results. The CuCl2 decomposition temperature obtained from thermogravimetric experiments is found to be higher than that predicted from the thermodynamic analysis. This broadens the available operating temperature range of the CuCl2 hydrolysis step for the Cu-Cl cycle. It is also found that the decomposition product CuCl may completely evaporate if the temperature is higher than its melting point, so the CuCl2 hydrolysis reaction should be operated below the melting point of CuCl (430 o C) to avoid the undesirable CuCl and Cl2 by-products. A preliminary correlation was proposed in this paper for the decomposition kinetics in terms of the extent of converting CuCl2 to CuCl and Cl2.

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A study of non-isothermal kinetics of limestone decomposition in air (O2/N2) and oxy-fuel (O2/CO2) atmospheres

Cited by 17 publications

References 37 publications

Release of K and Cl and Emissions of NO_x and SO₂ during Reed Black Liquor Combustion in a Fluidized Bed

Release of K and Cl and Emissions of NO_x and SO₂ during Reed Black Liquor Combustion in a Fluidized Bed

Estimation of kinetic parameters for the phase change memory materials by DSC measurements

Thermodynamics and kinetics of the thermal decomposition of cupric chloride in its hydrolysis reaction

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A study of non-isothermal kinetics of limestone decomposition in air (O2/N2) and oxy-fuel (O2/CO2) atmospheres

Cited by 17 publications

References 37 publications

Release of K and Cl and Emissions of NOx and SO2 during Reed Black Liquor Combustion in a Fluidized Bed

Release of K and Cl and Emissions of NOx and SO2 during Reed Black Liquor Combustion in a Fluidized Bed

Estimation of kinetic parameters for the phase change memory materials by DSC measurements

Thermodynamics and kinetics of the thermal decomposition of cupric chloride in its hydrolysis reaction

Contact Info

Product

Resources

About

Release of K and Cl and Emissions of NO_x and SO₂ during Reed Black Liquor Combustion in a Fluidized Bed

Release of K and Cl and Emissions of NO_x and SO₂ during Reed Black Liquor Combustion in a Fluidized Bed