摘要
利用火用分析方法对催化裂化余热锅炉进行了综合效率分析,分析了余热锅炉系统在运行中的火用效率表达式;并且用此方法进行了实例计算与分析,得出了余热锅炉在实际运行中有效能利用情况,对余热锅炉效率的影响因素进行了定性分析,确定了火用损失的关键环节为排烟损失和温差传热火用损失;通过针对性的优化方案对余热锅炉进行改造,若使其排烟温度降至150℃时,余热锅炉系统火用效率将提高10.4%。
The exergy analysis of the waste heat boiler in fluid catalytic cracking unit was carried out by the exergy analysis method. The exergy efficiency expression of the waste heat boiler system in the operation was analyzed; And practical calculation and analysis were carried out by this method, application status of effective energy from the waste heat boiler was gained, some factors to affect the exergy efficiency of the waste heat boiler were analyzed, it＇s determined that the key link of the exergy loss was smoke exhaust and heat transfer. After transformation of the waste heat boiler with optimal scheme, the exergy efficiency of the waste heat boiler would be increased by 10.4% if the exhaust ~as temnerature droos to 150 ℃.
出处
《当代化工》
CAS
2012年第10期1114-1116,1119,共4页
Contemporary Chemical Industry
关键词
火【用】分析
催化裂化
余热锅炉
优化方案
Exergy analysis
Catalytic cracking unit
Waste heat boiler
Optimal scheme
