新型高效低NO_(x)排放CO助燃剂研究和工业应用  

Research and industrial application of a novel CO promoterwith high efficiency and low NO_(x) emission

作　　者：沙昊 Sha Hao(SINOPEC Research Institute of Petroleum Processing Co.,Ltd.,Beijing 100083)

机构地区：[1]中石化石油化工科学研究院有限公司,北京市100083

出　　处：《炼油技术与工程》2024年第6期48-51,共4页Petroleum Refinery Engineering

基　　金：中石化股份公司课题(CLY22038)。

摘　　要：大部分催化裂化(FCC)装置采用CO助燃剂控制再生器CO尾燃,但存在加注量大、应用成本高以及烟气NO_(x)增加的问题。本研究开发生产出FCC新型高效低NO x排放CO助燃剂,实验室评价数据和工业应用结果表明:该助燃剂具有更高的助燃活性、更低的烟气NO_(x)含量、更好的水热稳定性和更强的抗硫失活性能,相比市售助燃剂,CO体积分数降低35.9%~40.2%,NO_(x)质量浓度降低15.9%~19.4%;应用新型高效低NO x排放CO助燃剂可减小NO x浓度波动,降低SCR(选择性催化还原)注氨量,降低运行成本,减少余热锅炉结盐,有利于装备长周期运行。Most FCC units use CO combustion promotor to control the“after burn”of CO,but there are problems of large injection volume,high application cost,and increasing flue gas NO_(x).In this study,a novel CO combustion promoter with high efficiency and low NO_(x) emission was developed and produced.The laboratory evaluation data and industrial application results show that this promoter has higher combustion activity,lower flue gas NO_(x) emission,better hydrothermal stability and stronger sulfur resistant deactivation performance.Compared with commercially available combustion promoter,the CO volume fraction is reduced by 35.9%to 40.2%,and the NO_(x) mass fraction is reduced by 15.9%to 19.4%.The application of the new high efficiency and low NO_(x) emission CO combustion promoter can reduce NO_(x) fluctuations,reduce SCR ammonia injection,save operating costs,and reduce salt deposition in waste heat boilers,which is beneficial for long-term operation of equipment.

关 键 词：催化裂化装置 低NO_(x)排放 CO助燃剂 烟气温度 NO_(x)质量浓度 CO体积分数 抗硫失活 水热失活 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]