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首页> 外文会议>2011 International Conference on Materials for Renewable Energy Environment >Experiment and thermodynamic analysis on Q-phase cement clinker cogeneration from coal in pulverized coal combustion boiler
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Experiment and thermodynamic analysis on Q-phase cement clinker cogeneration from coal in pulverized coal combustion boiler

机译：煤粉燃烧锅炉煤中Q相水泥熟料热电联产的试验和热力学分析

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Taking Changguang coal as experimental coal type, carrying out the experiment of Q-phase cement clinker co-generated from high-sulfur coal on two-section multiphase reaction test stand and conducting XRD analysis on the mineral composition in co-generation clicker sample, it was found that the major mineral species in compositions of co-generation clinker are 2CaO·SiO2, Q phase and calcium sulphoaluminate (3CaO·3Al2O3·CaSO4). According to the Gibbs free enthalpy G of state function, conduct thermodynamic calculation on the mineral formation reaction probably occurring in the chemical compositions of Q-phase cement clinker co-generated from Changguang coal, especially, calculate and compare the formation reactions of high-temperature sulfur capture product 3CaO·3Al2O3·CaSO4 and Q-phase that was the characteristic mineral of co-generation, and compare the priority of mineral formation reactions of clicker. The findings show that, according to the chemical composition of clinker, the direct synthesis reaction of 2CaO·Al2O3·SiO2 will firstly occur, followed by the direct synthesis reaction of 2CaO·SiO2, the next is the indirect synthesis reaction of Q-phase, and the last is the indirect synthetic reaction of 3CaO·3Al2O3·CaSO4; the final main mineral compositions of co-generation clinker should be 2CaO·SiO2, Q phase and 3CaO·3Al2O3·CaSO4; the conclusion of thermodynamic analysis on co-generation clicker mineral formation reaction basically conforms to the mineral composition in experiment of Changguang coal co-generating Q-phase cement clinker.
机译：以长光煤为实验煤类型，在两段多相反应试验台上进行高硫煤共生Q相水泥熟料的实验，并对热电联产click石样品中的矿物成分进行X射线衍射分析，已发现，热电联产熟料的主要矿物种类为2CaO·SiO 2 ，Q相和硫铝酸钙（3CaO·3Al 2 O 3 < / inf>·CaSO 4 ）。根据状态函数的吉布斯自由焓G，对长光煤共生Q相水泥熟料化学成分中可能发生的矿物形成反应进行热力学计算，尤其是计算和比较高温下的形成反应。硫捕获产物3CaO·3Al 2 O 3 ·CaSO 4 和Q相是热电联产的特征矿物，并比较了答题者的矿物形成反应的优先级。研究结果表明，根据熟料的化学组成，首先将直接合成2CaO·Al 2 O 3 ·SiO 2 发生，接着是2CaO·SiO 2 的直接合成反应，下一个是Q相的间接合成反应，最后一个是3CaO·3Al 2 < / inf> O 3 ·CaSO 4 ;共生熟料的最终主要矿物成分应为2CaO·SiO 2 ，Q相和3CaO·3Al 2 O 3 ·CaSO < inf> 4 ;热电联产Clicker矿物形成反应的热力学分析结论基本符合长光煤电联产Q相水泥熟料实验中的矿物成分。

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