摘要
在固定流化床实验装置上,通过催化裂化待生催化剂的再生实验,考察了氧燃烧气氛下再生温度、密相气体线速等实验条件对烧焦过程的影响,并与常规再生结果进行了对比。结果表明,氧燃烧再生技术替代常规空气再生不仅是可行性,而且有更好的再生效果。通过对实际工业装置氧燃烧再生的模拟得出,在氧燃烧再生条件下再生烟气中的CO2体积分数很容易达到96%以上,从而实现CO2的捕集和经济利用。
A series of experiments on FCC spent catalyst regeneration are carried out on a confined-bed fluid reactor.In comparison with normal regeneration,the effects of different conditions including regeneration temperature,velocity in dense phase on regeneration are investigated in atmosphere of oxycombustion.It is revealed that oxycombustion regeneration technology is feasible in place of normal regeneration,and shows a better performance.Meanwhile a simulation of full-scale regenerator is taken and it is shown that up to 95％ CO2 concentration in flue gas can be readily achieved through oxycombustion regeneration,so as to realize the capture and economic use of CO2.
出处
《现代化工》
CAS
CSCD
北大核心
2013年第10期96-98,100,共4页
Modern Chemical Industry
关键词
二氧化碳捕集
催化裂化
氧燃烧
fluid catalytic cracking
oxycombustion
carbon dioxide capture
