CO_2-O_2/H_2O混合气氛下煤气化过程的分析  

Exergy Analysis of Coal Gasification Process Under CO_2-O_2/H_2O Atmosphere

作　　者：李文军[1] 项友谦 苏倩倩[1] 魏家骏[1] 

机构地区：[1]华北科技学院环境工程学院,北京东燕郊101601 [2]中国市政工程华北研究设计院,天津300074

出　　处：《华北科技学院学报》2016年第2期51-55,共5页Journal of North China Institute of Science and Technology

基　　金：中央高校基本科研业务费资助项目(3142015025;3142015089)

摘　　要：应用ASPEN软件模拟CO2-O2/H2O混合气氛下的煤气化系统,采用分析法对系统的效率和损失状况进行了分析,考察了气化温度、气化剂中CO2的含量以及气化剂预热温度三种因素对气化系统效率的影响。结果表明：当气化温度从800℃升高到1400℃时,效率从76.31%提高到88.49%;随着气化剂中CO2含量提高,气化过程效率先降低后升高,当CO2含量提高至12%以后,气化过程效率持续升高,气化剂中CO2的含量为45%~48%时,气化煤气中有效气体含量达到最高值79.41%;气化剂的预热温度对效率的影响很小。This paper investigated the simulation of coal gasification system Under CO2-O2/ H2 O atmosphere.Using ASPEN PLUS to simulate exergy efficiency and exergy losses situation of the coal gasification system,it investigated the gasification temperature,carbon dioxide levels and the preheating temperature of the gasifying agent etc.factors on exergy efficiency.The results show that：When the gasification temperature was raised from 800℃ to 1400℃,exergy efficiency was raised from 76.31% to 88.49%; with the CO2 content in gasification agent increased,exergy efficiency of gasification process first and then increased,after CO2 content increased to 12%,the gasification process exergy efficiency persistently elevated,the CO2 content in the gasification agent of 45% to 48%,the effective gas content reached the highest value 79.41%; The preheating temperature The preheating temperature of gasification agent has little effect on the exergy efficiency.

关 键 词：CO2 煤气化 ASPEN PLUS 模拟 分析 

分 类 号：TQ533[化学工程—煤化学工程]