摘要
在小型固定流化床烧焦实验数据的基础上,建立了CO累积速率模型,探讨了影响烟气中CO含量的内在因素。结果表明,在常压、650℃的条件下,氧气分压对碳燃烧速率的级数为0.91,对CO燃烧速率的级数为0.56,再生器中氧气分压对烟气中CO含量的影响比对烧焦速率的影响更敏感。在530℃烧焦时,烟气中CO含量出现极值;温度高于530℃时,随着温度的增加,烟气中CO含量减少。当待生剂上碳转化率达到50%时,烟气中CO含量最大。
Based on the data from regeneration test on a bench scale fixed fluidized bed reactor, a mathematical model of CO accumulating rate was set up and the factors affecting CO content in flue gas were investigated. It was found that a maximum CO content in flue gas was observed at 530℃ and the CO content decreased with the increase of regeneration temperature at above 530℃. Maximum CO content in flue gas was also found at a 50% carbon conversion of spent catalyst. Under 650℃ and atmospheric pressure the reaction order for oxygen and coke or oxygen and CO was 0. 91 or 0. 56,respectively.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2005年第8期18-22,共5页
Petroleum Processing and Petrochemicals
