催化裂化氧再生烟气循环捕集CO_(2)技术  

FCC oxygen-regeneration flue gas recycle for CO_(2) capture

作　　者：孙世源 江盛阳 王龙延 孟凡东 段丹 闫鸿飞 杨鑫 SUN Shi-yuan;JIANG Sheng-yang;WANG Long-yan;MENG Fan-dong;DUAN dan;YAN Hong-fei;YANG Xin(Luoyang R&D Center of Technology,Sinopec Engineering(Group)Co.,Ltd.,Luoyang 471003,China;Sinopec Engineering Incorporation,Beijing 100012,China)

机构地区：[1]中石化炼化工程(集团)股份有限公司洛阳技术研发中心,河南洛阳471003 [2]中国石化工程建设有限公司,北京100012

出　　处：《现代化工》2025年第4期241-244,250,共5页Modern Chemical Industry

基　　金：中石化股份有限公司课题(122010)。

摘　　要：为了降低催化裂化装置CO_(2)的排放,开发了催化裂化氧再生烟气循环捕集CO_(2)技术(Oxy-Reg):采用烟气再循环方式,利用空分装置分离出来的氧气,与循环烟气混合后一起进入再生器内烧焦,另一部分再生烟气去CO_(2)回收系统利用,从而实现CO_(2)的捕集。中试试验结果表明,要实现CO_(2)高浓度的捕集,合理控制O_(2)流量和烟气循环比例是关键。基于此开发了烟气循环控制系统,可以合理调节O_(2)流量和再生烟气循环比例,实现再生烟气中CO_(2)体积分数富集至95%以上。To reduce CO_(2)emission from fluid catalytic cracking units(FCCUs),a new technology called FCC Oxy-Regeneration flue gas recycle for CO_(2)capture(Oxy-Reg)is developed.This involves recycling flue gas and mixing it with oxygen from the air separation unit in the regenerator to burn coke.A portion of the regenerated flue gas is then recycled back to the regenerator,while the rest enters the CO_(2)recovery system to capture CO_(2).Pilot test results show that controlling the flow rate of oxygen and the recycling ratio of flue gas rationally is the key to capture high concentration of CO_(2).Based on this,a flue gas circulation control system is developed to adjust the flow rate of oxygen and the recycling ratio of regenerated flue gas rationally in real time,resulting in a CO_(2)enrichment of over 95%.

关 键 词：催化裂化 烟气循环 CO_(2) 捕集 氧燃烧 

分 类 号：TE624[石油与天然气工程—油气加工工程]