FDFCC-Ⅲ和重叠式两段再生组合技术应用总结  

Summary of application of FDFCC-Ⅲ andoverlapping two-stage regeneration combination technology

作　　者：陈振江 Chen Zhenjiang(SINOPEC Guangzhou Engineering Co.,Ltd.,Guangzhou,Guangdong 510620)

机构地区：[1]中石化广州工程有限公司,广东省广州市510620

出　　处：《炼油技术与工程》2024年第11期10-13,38,共5页Petroleum Refinery Engineering

摘　　要：介绍了某石化企业采用FDFCC-Ⅲ工艺和多项强化逆流烧焦技术扩能改造的成功经验。采用FDFCC-Ⅲ工艺,改质汽油烯烃体积分数可降至15%以下,满足生产国ⅥB汽油对烯烃含量的要求。汽油硫传递系数由13%提高至14.75%~21.00%。改质汽油脱硫率最高达到55%以上,脱氮率达到80%以上。反应-再生系统提压操作,增加烟机能量回收、降低气压机蒸汽消耗,能耗降低1.26 kgoe/t原料;采用多项强化逆流烧焦技术,烧焦强度增加20%以上,烧焦能力增幅60%以上,为同类型装置扩能改造提供借鉴意义。A petrochemical enterprise has successful capacity expansion adopting FDFCC-Ⅲprocess and multiple enhanced countercurrent coke burning technologies.The volume fraction of olefin of modified gasoline can be reduced to less than 15%,meeting the requirements of GuoⅥB gasoline.The sulfur transfer coefficient of gasoline in the heavy oil riser reactor has increased from 13%to 14.75%-21%.The sulfur reduction rate of modified gasoline is more than 55%,and the nitrogen removal rate is more than 80%.The operation of increasing the pressure of the reaction-regeneration system increases the energy recovery of the flue gas turbine,reduces the medium pressure steam consumption of the rich gas compressor,and reduces the energy consumption per ton of feed by 1.26 kgoe.By adopting multiple enhanced countercurrent coke burning technologies,coking intensity is increased by more than 20%and coking capacity is increased by more than 60%.

关 键 词：FDFCC-Ⅲ工艺 汽油烯烃含量 低温接触大剂油比 重叠式两段再生 汽油硫传递系数 重油催化裂化装置 烧焦强度 能耗 

分 类 号：TE624[石油与天然气工程—油气加工工程]