Calculation for Mineral Phases in the Calcination of Desulfurization Residue to Produce Sulfoaluminate Cement
Calculation for Mineral Phases in the Calcination of Desulfurization Residue to Produce Sulfoaluminate Cement
复制标题
脱硫渣煅烧生产硫铝酸盐水泥的矿相计算
DOI：
10.1021/ie101228h
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发表时间：
2010-08
期刊：
影响因子：
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通讯作者：
Luo, Zhongyang
中科院分区：
文献类型：
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作者：
Wang, Wenlong;Wang, Peng;Ma, Chunyuan;Luo, Zhongyang
干法烟气脱硫（FGD）残渣的利用已成为我国的一个环境问题.介绍了一种在不改造水泥厂设备的情况下，利用干法脱硫渣和粉煤灰生产硫铝酸盐水泥的新方法。台架和中试研究表明，所制得的硫铝酸盐水泥制品具有优良的性能。采用新的数据库对FACTSAGE进行改进，并将其用于原料配比优化。计算了煅烧后CaO-SiO2-Al 2 O3-CaSO 4系统的矿物相。理论和实验结果是一致的。该技术具有降低水泥厂原料成本和能源消耗的良好潜力。有利于CO2减排和循环经济发展。计算结果可供高温固硫、矿物优化、水泥生产等化工过程研究参考。
The utilization of dry flue gas desulfurization (FGD) residue has become an environmental issue in China. A new method is introduced here to produce sulfoaluminate cement using the dry FGD residue and fly ash without modification of the cement plant equipments. The bench- and pilot-scale experimental studies indicated that the obtained sulfoaluminate cement product had excellent performance. FACTSAGE was improved by a new database and then used for raw material proportion optimization. The mineral phases of a CaO−SiO2−Al2O3−CaSO4 system after calcination were calculated. The theoretical and experimental results are accordant. This technology has good potential to decrease the raw material costs and energy consumption at cement plants. It is also beneficial in CO2 emission reduction and circular economy development. The calculation results may be generally referred in the studies on the chemical processes such as sulfur fixation at high temperature, mineral optimization, and cement production, etc.