催化裂化装置三旋存在问题分析及改造措施
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摘要
针对中国石油化工股份有限公司洛阳分公司100万t/a重油催化裂化装置再生器第三级旋风分离器效率低的问题,对三旋运行状况进行了工艺核算,认为单管数量不在单管最佳处理范围、单管防返混锥标高相差较大以及集尘室净空尺寸偏小是造成三旋分离效率低的主要原因,从减少单管总数、扩大临界流速喷嘴口径、三旋内部结构优化等方面提出了改造措施,改造后的三旋运行状况良好,分离效率明显提高,满足安全生产需要。
Process calculation are reviewed for the third stage cyclone of 1 000 000 t/a fluidized catalytic cracking unit regeneration of China Petroleum & Chemical Corporation Luoyang Company.Single tube numbers beyond the most preferred range,large elevation height difference between anti-back mixing cones and smaller collection chamber space are recognized as the main causes for low efficiency of the third cyclone.Reducing the total number of single tube,expanding the critical velocity nozzle diameter and optimizing the third cyclone internal structure and etc.countermeasures are proposed and applied and satisfying effect are achieved for both efficiency and safety production.
Process calculation are reviewed for the third stage cyclone of 1 000 000 t/a fluidized catalytic cracking unit regeneration of China Petroleum & Chemical Corporation Luoyang Company.Single tube numbers beyond the most preferred range,large elevation height difference between anti-back mixing cones and smaller collection chamber space are recognized as the main causes for low efficiency of the third cyclone.Reducing the total number of single tube,expanding the critical velocity nozzle diameter and optimizing the third cyclone internal structure and etc.countermeasures are proposed and applied and satisfying effect are achieved for both efficiency and safety production.
引文
[1]曹汉昌,郝希人,张韩.催化裂化工艺计算与技术分析[M].北京:石油工业出版社,2000.(CAO Han-chang,HAO Xi-ren,ZHANG Han.Catalytic Cracking Process Calculation and Technical Analysis[M].Beijing:Petroleum Industry Press,2000.)
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[4]梁凤印.流化催化裂化[M].北京.中国石化出版社,2006.(LIANG Feng-yin.Fluid Catalytic Cracking[M].Beijing:China Petrochemical Press Co.Ltd.,2006.)
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[7]李琳琳,陈洪岩,张伟.催化裂化多管式三旋系统存在问题浅析[J].广东化工,2012,39(2):144-145.(LI Lin-lin,CHEN Hong-yan,ZHANG Wei.The Analysis and Solution of the Third-level Cyclone Separator of FCCU[J].Guangdong Chemical Industry,2012,39(2):144-145.)
[8]金聚慧,张扬,郑大志.FCC装置三旋效率低的原因及对策[J].炼油技术与工程,2006,36(9):21-24.(JIN Ju-hui,ZHANG Yang,ZHENG Da-zhi.Root Causes of Low-efficiency of FCCU 3rd-Stage Cyclone[J].Petroleum Refinery Engineering,2006,36(9):21-24.)
[9]周金宁,徐存铭.催化裂化装置三旋的问题分析及技改措施[J].广东化工,2010,38(11):197-199.(ZHOU Jin-ning,XU Cun-ming.The Analysis and Solution of the Three-level Cyclone Separator of FCCU[J].Guangdong Chemical Industry,2010,38(11):197-199.)
[10]黄荣臻,闫涛,房家贵.催化裂化第三级旋风分离器的现状和发展方向[J].石油化工设备技术,2005,26(1):29-31.(HUANG Rong-zhen,YAN Tao,FANG Jia-gui.The Current Situation and Development Direction on Third Stage Cyclone in Catalytic Cracking Unit[J].Petrochemical Equipment Technology,2005,26(1):29-31.)
[11]李多民,吕运容,刘芳.炼油催化装置旋风分离器问题分析及改进措施[J].机电工程技术,2002,31(6):107-108.(LI Duo-min,LYun-rong,LIU Fang.Problem Analysis and Solution of Vertical Pipe Type Cyclone for Catalytic Cracking Unit[J].Mechanical&Electrical Engineering Technology,2002,31(6):107-108.)
[12]樊宁,刘根凡,毛锐,等.一种高效动态旋风分离器流场与分离效率研究[J].石油化工设备,2015,44(2):6-12.(FAN Ning,LIU Gen-fan,MAO Rui,et al.Study of Flow Field and Separation Efficiency of a High-efficiency Dynamic Cyclone Separator[J].Petro-chemical Equipment,2015,44(2):6-12.)
[13]王俊彪.催化裂化多管式三旋存在问题及改进措施[J].炼油技术与工程,2004,34(9):21-23.(WANG Jun-biao.Problems in the Third-stage Multiclone of FCC Unit and Countermeasures[J].Petroleum Refinery Engineering,2004,34(9):21-23.)
[14]刘宗良.催化裂化装置旋风分离器设计的有关问题[J].炼油技术与工程,2006,36(11):17-21.(LIU Zong-liang.Design of FCCU Cyclone[J].Petroleum Refinery Engineering,2006,36(11):17-21.)
[15]金有海,范超,时铭显.PSC-300型大处理量高效旋风管的开发研究[J].炼油设计,2002,32(2):24-27.(JIN You-hai,FAN Chao,SHI Ming-xian.Research and Development of PSC-300 High Efficiency Cyclone Tube with Large Gas Capacity[J].Petroleum Refinery Engineering,2002,32(2):24-27.)
[2]刘家明.石油化工设备设计手册[M].北京:中国石化出版社,2013.(LIU Jia-ming.Petrochemical Equipment Design Handbook[M].Beijing:China Petrochemical Press Co.Ltd.,2013.)
[3]李晓晨,侯利国,蔡宝超.催化裂化装置三级旋风分离器使用情况分析[J].广东化工,2011,38(6):171-172.(LI Xiao-chen,HOU Li-guo,CAI Bao-chao.Analysis of Application of the Third Stage Cyclone Separator in FCC Unit[J].Guangdong Chemical Industry,2011,38(6):171-172.)
[4]梁凤印.流化催化裂化[M].北京.中国石化出版社,2006.(LIANG Feng-yin.Fluid Catalytic Cracking[M].Beijing:China Petrochemical Press Co.Ltd.,2006.)
[5]张翼飞,陈述卫,王兆斌.FCC装置三旋的技术现状与发展趋势[J].广东化工,2013,40(15):159-161.(ZHANG Yi-fei,CHEN Shu-wei,WANG Zhao-bin.The FCC Unit Three-stage Cyclone Separator Technology Current Conditions and Development Tendency[J].Guangdong Chemical Industry,2013,40(15):159-161.)
[6]赵予川,晁君瑞,王月霞,等.催化裂化三级旋风分离器专利技术现状及发展动态[J].炼油技术与工程,2014,44(2):35-37.(ZHAO Yu-chuan,CHAO Jun-rui,WANG Yue-xia,et al.Existing Conditions and Development Trend of Patent Technology on 3rd-stage Cyclone Separator in Fluidized Catalytic Cracking Unit[J].Petroleum Refinery Engineering,2014,44(2):35-37.)
[7]李琳琳,陈洪岩,张伟.催化裂化多管式三旋系统存在问题浅析[J].广东化工,2012,39(2):144-145.(LI Lin-lin,CHEN Hong-yan,ZHANG Wei.The Analysis and Solution of the Third-level Cyclone Separator of FCCU[J].Guangdong Chemical Industry,2012,39(2):144-145.)
[8]金聚慧,张扬,郑大志.FCC装置三旋效率低的原因及对策[J].炼油技术与工程,2006,36(9):21-24.(JIN Ju-hui,ZHANG Yang,ZHENG Da-zhi.Root Causes of Low-efficiency of FCCU 3rd-Stage Cyclone[J].Petroleum Refinery Engineering,2006,36(9):21-24.)
[9]周金宁,徐存铭.催化裂化装置三旋的问题分析及技改措施[J].广东化工,2010,38(11):197-199.(ZHOU Jin-ning,XU Cun-ming.The Analysis and Solution of the Three-level Cyclone Separator of FCCU[J].Guangdong Chemical Industry,2010,38(11):197-199.)
[10]黄荣臻,闫涛,房家贵.催化裂化第三级旋风分离器的现状和发展方向[J].石油化工设备技术,2005,26(1):29-31.(HUANG Rong-zhen,YAN Tao,FANG Jia-gui.The Current Situation and Development Direction on Third Stage Cyclone in Catalytic Cracking Unit[J].Petrochemical Equipment Technology,2005,26(1):29-31.)
[11]李多民,吕运容,刘芳.炼油催化装置旋风分离器问题分析及改进措施[J].机电工程技术,2002,31(6):107-108.(LI Duo-min,LYun-rong,LIU Fang.Problem Analysis and Solution of Vertical Pipe Type Cyclone for Catalytic Cracking Unit[J].Mechanical&Electrical Engineering Technology,2002,31(6):107-108.)
[12]樊宁,刘根凡,毛锐,等.一种高效动态旋风分离器流场与分离效率研究[J].石油化工设备,2015,44(2):6-12.(FAN Ning,LIU Gen-fan,MAO Rui,et al.Study of Flow Field and Separation Efficiency of a High-efficiency Dynamic Cyclone Separator[J].Petro-chemical Equipment,2015,44(2):6-12.)
[13]王俊彪.催化裂化多管式三旋存在问题及改进措施[J].炼油技术与工程,2004,34(9):21-23.(WANG Jun-biao.Problems in the Third-stage Multiclone of FCC Unit and Countermeasures[J].Petroleum Refinery Engineering,2004,34(9):21-23.)
[14]刘宗良.催化裂化装置旋风分离器设计的有关问题[J].炼油技术与工程,2006,36(11):17-21.(LIU Zong-liang.Design of FCCU Cyclone[J].Petroleum Refinery Engineering,2006,36(11):17-21.)
[15]金有海,范超,时铭显.PSC-300型大处理量高效旋风管的开发研究[J].炼油设计,2002,32(2):24-27.(JIN You-hai,FAN Chao,SHI Ming-xian.Research and Development of PSC-300 High Efficiency Cyclone Tube with Large Gas Capacity[J].Petroleum Refinery Engineering,2002,32(2):24-27.)
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