水煤浆气化过程中残碳量计算模型  

Calculation Model for Residual-Carbon of Coal-Water-Slurry Gasification Process

作　　者：王辅臣[1] 龚欣[1] 刘海峰 代正华[1] 于遵宏[1] 

机构地区：[1]华东理工大学洁净煤技术研究所,上海200237

出　　处：《化学反应工程与工艺》2004年第3期198-203,共6页Chemical Reaction Engineering and Technology

基　　金：国家重点基础研究发展规划项目(G1999022103);国家高技术发展计划863课题(2003AA521021)

摘　　要：　基于气化炉大型冷模实验的研究结果和煤气化过程的特点,分析了气流床水煤浆气化炉内各个区域的流动与化学反应特征,建立了水煤浆气化过程中残碳量的计算模型,考察了煤的挥发分、煤颗粒平均直径以及气化炉平均停留时间对残碳量的影响。计算结果表明,平均停留时间增加,残碳量减小;在相同的平均停留时间和颗粒平均直径下,煤中挥发分增加,出气化炉残碳量减小;在相同的平均停留时间和挥发分含量下,煤浆中煤颗粒平均直径减小,出气化炉残碳量减小。The flow pattern and reaction characteristics in different regions of coal water slurry gasifier were analysed based on large scale cold model experiment results and the feature of coal gasification process. The calculation model of residual-carbon in the process was put forward. Effects of coal volatile, mean diameter of coal particles and mean resident time of gasifier on the yield of residual-carbon in the gasifier exit were studied. The results showed that the residual carbon deceases with both increasing mean resident time of gasifier and increasing the volatile of coal. And in the same mean resident time of gasifier and coal volatile, the residual-carbon decreases with decreasing mean diameter of coal particles in slurry.

关 键 词：水煤浆 气化过程 残碳量 计算模型 合成气 

分 类 号：TQ546[化学工程—煤化学工程]