Application of the FactSage to Predict the Ash Melting Behavior in Reducing Conditions  

利用FactSage热力学软件预测还原性气氛下煤灰熔融行为特征的研究

作　　者：李寒旭 二宫善彦 董众兵 张明旭 

出　　处：《Chinese Journal of Chemical Engineering》2006年第6期784-789,共6页中国化学工程学报（英文版）

基　　金：Supported by the Natural Science Foundation of the Education Ministry of Anhui Province (2004kj 125) and the Key Project of Huainan (2003001).

摘　　要：FactSage has been used to predict the ash behavior and ash fusion temperature (AFT) at high temperature under reducing atmosphere conditions. For Huainan coal ash samples, it has demonstrated a good agreement between the liquid phase formation as the function of temperature and the tested AFT. The tested and predicted flow temperature (FT) for two typical Huainan coal ashes with the addition of CaO flux are quite fit with the maximum temperature difference less than 74 ℃ which is within acceptable range. It can be concluded that FactSage in combination with X-ray diffraction (XRD) can be used to predict the reactions occurring between minerals, as well as the mineral transformation and slag formation. This is probably an improved way to interpret melting properties of mineral matter in coal and assist in quantifying slag formation in gasifier operation.FactSage has been used to predict the ash behavior and ash fusion temperature AFT at high tempera- ture under reducing atmosphere conditions. For Huainan coal ash samples, it has demonstrated a good agreement between the liquid phase formation as the function of temperature and the tested AFT. The tested and predicted flow temperature FT for two typical Huainan coal ashes with the addition of CaO flux are quite fit with the maximum temperature difference less than 74℃ which is within acceptable range. It can be concluded that FactSage in com- bination with X-ray diffraction XRD can be used to predict the reactions occurring between minerals, as well as the mineral transformation and slag formation. This is probably an improved way to interpret melting properties of mineral matter in coal and assist in quantifying slag formation in gasifier operation.

关 键 词：ASH FUSION temperature  FactSage  ASH transformation  Huainan COALS 

分 类 号：TQ-55[化学工程]