Shell粉煤气化及Texaco水煤浆气化模拟对比及分析  

Comparison and analysis of the process simulations of shell pulverized coal gasification and texaco slurry coal gasification

作　　者：姚月华[1,2] 陈晏杰[1,2] 江振西[1] 张香平[2] 任保增[1] 汪敬恒[1] 黄磊[2] 董海峰[2] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001 [2]中国科学院过程工程研究所,离子液体清洁过程北京市重点实验室,多相复杂系统国家重点实验室,北京100190

出　　处：《计算机与应用化学》2012年第1期75-79,共5页Computers and Applied Chemistry

基　　金：国家重点基础研究发展计划(973)(2009CB219907);国家高技术研究发展计划(863)(2011AA050606)

摘　　要：以Aspen Plus为模拟工具,选择反应平衡模型,应用Gibbs自由能最小化方法建立了Shell粉煤气化模型及Texaco水煤浆气化模型,运用灵敏度分析研究了不同操作条件对气化工艺的影响,结果表明:对于Shell气化工艺,蒸汽煤比和氧煤比是影响Shell气化炉的出口组成的主要因素,当蒸汽煤质量比为0.08～0.11,氧煤质量比为0.8～0.9时进行气化较为合适;对于Texaco气化工艺,水煤浆浓度和氧煤比是影响Texaco气化炉的出口组成的主要因素,当水煤浆浓度在65%(wt)左右,氧煤质量比为0.95～1.05时进行气化较为合适。通过对两种气化工艺的对比与分析,为IGCC、煤气化等过程的气化工艺选择提供了重要的参考。Taking the Aspen Plus software as the simulation tool, by selecting the reaction balance model and using the minimizing method of the Gibbs free energy, the Shell pulverized coal gasification model and Texaco slurry coal gasific^ttion model are built, and the established models have been inspected. The gasification property under different operating conditions is studied based on the sensitivity analysis tool, for the Shell pulverized coal gasification technology, ratio of steam/coal and ratio of oxygen/coal are the main factors on the composition of the raw syngas, and it is fit for occurring gasification reaction when the mass ratio of steam/coal is between 0.08 and 0.11, and the mass ratio of oxygen/coal is between 0.8 and 0.9; for the Texaco slurry gasification technology, the concentration of the slurry and the ratio of oxygen/coal were the main factors on the composition of the raw syngas, and it is fit for occurring gasification reaction when the mass concentration of the slurry is close to 65% and the mass ratio of oxygen/coal is between 0.95 and 1.05. Based on the study of the two gasification technologies, references can be provided for the selection of the gasification technology of certain process including coal gasification and IGCC.

关 键 词：Texaco水煤浆气化 SHELL粉煤气化 灵敏度分析 

分 类 号：TQ546.2[化学工程—煤化学工程]