|本期目录/Table of Contents|

[1]潘志爽,熊晓云,蔡进军,等.再生催化裂化催化剂结构及性能[J].石化技术与应用,2024,1:8-11.
 PAN Zhi-shuang,XIONG Xiao-yun,CAI Jin-jun,et al.Structure and performance of regenerated fluid catalytic cracking catalysts[J].Petrochemical technology & application,2024,1:8-11.
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再生催化裂化催化剂结构及性能(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2024年1期
页码:
8-11
栏目:
出版日期:
2024-01-10

文章信息/Info

Title:
Structure and performance of regenerated fluid catalytic cracking catalysts
文章编号:
1009-0045(2024)01-0008-04
作者:
潘志爽1熊晓云1蔡进军1吴文尧2何涛3
1.中国石油石油化工研究院 兰州化工研究中心,甘肃 兰州730060;2.中国石油兰州石化公司 催化剂事业部,甘肃 兰州730060;3.中国石油云南石化有限公司 生产一部,云南 昆明 650399
Author(s):
PAN Zhi-shuang1XIONG Xiao-yun1CAI Jin-jun1WU Wen-yao2HE Tao3
1. Lanzhou Petrochemical Research Center,Petrochemical Research Institute,PetroChina,Lanzhou 730060,China;2. Catalyst Division of Lanzhou Petrochemical Company,PetroChina,Lanzhou 730060,China;3. Production Division I of Yunnan Petrochemical Co Ltd,PetroChina,Kunming 650399,China
关键词:
催化裂化催化剂再生焦炭热裂化指数
Keywords:
fluid catalytic crackingcatalystregenerationcokethermal cracking index
分类号:
TE 624.9+1
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2024.01.0008
文献标识码:
B
摘要:
采用固定床装置制备了2种碳质量分数分别为0.25%,0.04%的再生催化裂化催化剂,利用X射线衍射仪、物理吸附仪、扫描电子显微镜等对催化剂进行表征,考察了再生过程对催化剂结构的影响,并对再生催化剂的性能进行评价。结果表明:再生过程不会影响催化剂中分子筛结构;催化剂失活的主要原因是焦炭堵塞孔道,覆盖了弱酸性活性位点,再生过程除去焦炭后,催化剂活性得到恢复;催化剂碳质量分数越低,原料油转化率越高,热裂化指数越低;再生催化剂上原料油转化率最高可达83.68%,热裂化指数仅为0.19。
Abstract:
Two kinds of regenerated fluid catalytic cracking catalysts with carbon mass fraction of 0.25% and 0.04% were prepared by using a fixed bed device. The catalysts were characterized by X-ray diffractometer,N2 adsorption,scanning electron microscope. The influence of the regeneration process on catalyst structure and the performance of regenerated catalysts were studied. The results showed that the regeneration process didn′t affect the molecular sieve structure in the catalyst; the main reason for catalyst deactivation was that coke blocked the pores and covered the weak acidic active sites. The regeneration process removed the coke and the catalyst activity was restored; the lower the carbon mass fraction of the catalyst, the higher the feed oil conversion rate, the lower the thermal cracking index; the feed oil conversion rate on the regenerated catalyst could reach up to 83.68%, and the thermal cracking index was only 0.19.

参考文献/References

[1] 李秋芝,陈曼桥,孟凡东,等.催化裂化实现CO2捕集的技术探讨[J].现代化工, 2012, 32(12):82-84.[2] 陈俊武.催化裂化工艺与工程[M].2版.北京:中国石化出版社, 2005.[3] Ubong J E, Peng B, Rooh U, et al. Vanadium contamination of FCC catalyst: Understanding the destruction and passivation mechanisms[J]. Applied Catalysis A(General),2018, 555:108-117.[4] 张瑞驰,施文元,舒兴田.USY催化剂再生后碳含量对催化裂化性能的影响[J].石油炼制, 1991(10):28-34.[5] 袁程远,潘志爽,谭争国,等.介孔ZSM-5分子筛的制备及其在催化裂化反应中的应用[J].石油炼制与化工, 2017, 48(9):27-30.[6] 王明胜.催化裂化装置再生器尾燃原因分析及优化措施[J].石油炼制与化工, 2017, 48(8):29-33.

备注/Memo

备注/Memo:
中国石油天然气股份有限公司科技管理部资助项目(项目编号:2018 E-03-01)
更新日期/Last Update: 2024-01-10