中国电机工程学报2017，Vol.37Issue(20)：5980-5986,7.DOI:10.13334/j.0258-8013.pcsee.161521
神华煤及混煤的循环流化床工业气化炉运行研究
Research on Gasification of Shenhua Coal and Blended Coal in Industrial Circulating Fluidized Bed Gasifier
摘要
Abstract
High calcium Shenhua coal,and blended coal of Shenhua with Baikuang were gasified in a 350 t/d industrial circulating fluidized bed gasifier for 168 h,respectively.The operating characteristics and gasification properties were investigated.The agglomeration tendencies of Shenhua coal and blended coal were analyzed via SiO2-A12O3-CaO ternary phase diagram.The results show that the industrial gasifier runs stable either with Shenhua coal or blended coal.Agglomeration and defluidization phenomena are not observed.For Shenhua coal gasification,the cold gas efficiency is 71.96％;the carbon conversion is 86.90％;and the gas heat value is 5.59 MJ/Nm3.These results are higher than blended coal gasification with the same air flow rate.Adding Baikuang coal to Shenhua coal can increase the ash fusibility characteristics and move the ash location from anorthite zone to mullite zone.The formation of anorthite for blended coal gasification is less than Shenhua coal gasification,which is beneficial for the long run and stable operation of industrial gasifier.关键词
循环流化床/煤气化/神华煤/高钙煤/结渣/混煤/相图Key words
circulating fluidized bed/coal gasification/Shenhua coal/high calcium coal/agglomeration/blended coal/phase diagram分类
化学化工引用本文复制引用
于旷世,刘伟伟,张海霞,朱治平,吕清刚..神华煤及混煤的循环流化床工业气化炉运行研究[J].中国电机工程学报,2017,37(20):5980-5986,7.基金项目
国家自然科学基金项目(21306193).Project Supported by National Natural Science Foundation of China (21306193). （21306193）
