DCC-plus技术及其产品灵活性
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摘要
中国石化石油化工科学研究院开发的增强型催化裂解(DCC-plus)技术采用多反应区组合反应器型式,不仅能够实现不同反应区的分区精准控制,而且耦合了C_4馏分和轻汽油馏分循环裂化技术,强化了重质原料油的一次裂化反应和汽油馏分的二次裂化反应,在大幅度提高丙烯产率的同时可以降低干气和焦炭产率。DCC-plus技术已经在多个炼油厂得到了工业应用,其中大榭石化的2.2 Mt/a DCC-plus装置的乙烯和丙烯产率分别可以达到5.16%和21.55%。DCC-plus技术具有很好的产品灵活性,通过工艺操作参数和催化剂配方的调整,可以实现不同目标产品的灵活切换,为我国炼油行业的转型升级提供了一条可靠的途径。
Enhanced Deep Catalytic Cracking(DCC-plus) process, which uses combined reactors with multiple reaction zones and was developed by Research Institute of Petroleum Processing(SINOPEC), is a flexible technology for producing light olefins from heavy oils. Not only different reaction zones in this process could be controlled precisely, but also the recycling and cracking process of C_4 distillates and light gasoline fraction were utilized. The above two processes can enhance both the primary cracking of heavy oils and the secondary cracking of gasoline fraction. All these improvements result in high propylene yield and less dry gas and coke yields. DCC-plus process has been successfully applied in several commercial plants. For example, in Ningbo Daxie Petrochemical Limited Company(CNOOC), the 2.2 Mt/a DCC-plus unit achieved good application results with ethylene yield of 5.16% and propylene yield of 21.55%. DCC-plus process demonstrates a good flexibility of its products, which can be switched flexibly through adjusting the operating parameters and catalyst formulation. DCC-plus process provides a reliable way for oil refinery transformation and revamp.
Enhanced Deep Catalytic Cracking(DCC-plus) process, which uses combined reactors with multiple reaction zones and was developed by Research Institute of Petroleum Processing(SINOPEC), is a flexible technology for producing light olefins from heavy oils. Not only different reaction zones in this process could be controlled precisely, but also the recycling and cracking process of C_4 distillates and light gasoline fraction were utilized. The above two processes can enhance both the primary cracking of heavy oils and the secondary cracking of gasoline fraction. All these improvements result in high propylene yield and less dry gas and coke yields. DCC-plus process has been successfully applied in several commercial plants. For example, in Ningbo Daxie Petrochemical Limited Company(CNOOC), the 2.2 Mt/a DCC-plus unit achieved good application results with ethylene yield of 5.16% and propylene yield of 21.55%. DCC-plus process demonstrates a good flexibility of its products, which can be switched flexibly through adjusting the operating parameters and catalyst formulation. DCC-plus process provides a reliable way for oil refinery transformation and revamp.
引文
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[6]RAHIMI N,KARIMZADEH R.Catalytic cracking of hydrocarbons over modified ZSM-5zeolites to produce light olefins:A review[J].Applied Catalysis A:General,2011,398(1/2):1-17.
[7]WANG Gang,XU Chunming,GAO Jinsen.Study of cracking FCC naphtha in a secondary riser of the FCCunit for maximum propylene production[J].Fuel Processing Technology,2008,89(9):864-873.
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[9]汪燮卿,舒兴田.重质油裂解制轻烯烃[M].第1版.北京:中国石化出版社,2015:200.
[10]LIU Zhichang,MENG Xianghai,XU Chunming,et al.Secondary cracking of gasoline and diesel from heavy oil catalytic pyrolysis[J].Chinese Journal of Chemical Engineering,2007,15(3):309-314.
[11]谢朝钢.催化裂解过程丙烯选择性的影响因数探究[J].石油学报(石油加工),2018,34(1):1-5.(XIEChaogang.Study on influencing factors of propylene selectivity in deep catalytic cracking process[J].Acta Petrolei Sinica(Petroleum Processing Section),2018,34(1):1-5.)
[12]张执刚,谢朝钢,朱根权.增强型催化裂解技术(DCC-PLUS)试验研究[J].石油炼制与化工,2010,41(6):39-43.(ZHANG Zhigang,XIE Chaogang,ZHUGenquan.Experimental study of DCC-PLUS technology[J].Petroleum Processing and Petrochemicals,2010,41(6):39-43.)
[13]马文明,谢朝钢,朱根权,等.2.2 Mt/a增强型催化裂解装置运行情况分析[J].石油炼制与化工,2018,49(1):13-19.(MA Wenming,XIE Chaogang,ZHUGenquan,et al.Operational performace analysis of a2.2Mt/a DCC-plus unit[J].Petroleum Processing and Petrochemicals,2018,49(1):13-19.)
[14]赵长斌.增强型催化裂解装置开工初期调整策略及效果[J].石油炼制与化工,2017,48(9):54-58.(ZHAOChangbin.Adjusting measures for problems at initial stage of DCC-plus unit and effect[J].Petroleum Processing and Petrochemicals,2017,48(9):54-58.)
[15]CORMA A,ORCHILLéS A V.Current views on the mechanism of catalytic cracking[J].Microporous and Mesoporous Materials,2000,35/36:21-30.
[16]马文明,谢朝钢,朱根权.原料油加氢深度对催化裂解反应性能及氢转移反应影响[C]//北京:2017年中国石油炼制科技大会,2017:239-245.
[17]谢朝钢,魏晓丽,龙军.重油催化裂解制取丙烯的分子反应化学[J].石油学报(石油加工),2015,31(2):307-314.(XIE Chaogang,WEI Xiaoli,LONG Jun.Molecular reaction chemistry of heavy oil catalytic cracking to propylene[J].Acta Petrolei Sinica(Petroleum Processing Section),2015,31(2):307-314.)
[18]李正,侯栓弟,谢朝钢,等.重油催化裂解反应条件下丙烯的转化反应Ⅰ.反应性能及反应路径[J].石油学报(石油加工),2009,25(2):139-144.(LI Zheng,HOU Shuandi,XIE Chaogang,et al.Propylene transformation during deep catalytic cracking of heavy oil[J].Acta Petrolei Sinica(Petroleum Processing Section),2009,25(2):139-144.)
[19]王达林,张峰,冯景民,等.DCC-plus工艺的工业应用及适应性分析[J].石油炼制与化工,2015,46(2):71-75.(WANG Dalin,ZHANG Feng,FENG Jingmin,et al.Analysis of commercial application and flexibility of DCC-plus process[J].Petroleum Processing and Petrochemicals,2015,46(2):71-75.)
[20]高永灿.海外首套DCC-plus装置在泰国IRPC公司成功开工运行[J].石油炼制与化工,2016,47(6):9.
[21]乌忠理,刘生海,邵治堂,等.重油催化热裂解工艺污染铁对催化剂性能的影响与对策[J].石油炼制与化工,2018,49(1):26-29.(WU Zhongli,LIU Shenghai,SHAO Zhitang,et al.Effects of iron contamination on performance of catalyst in heavy oil catalytic pyrolysis process and countermeasures[J].Petroleum Processing and Petrochemicals,2018,49(1):26-29.)
[2]曾光乐,陈蓓艳,王中军,等.多产丙烯和异丁烯催化裂化助剂FLOS-Ⅲ的工业应用[J].石油炼制与化工,2015,46(3):24-28.(ZENG Guangle,CHEN Beiyan,WANG Zhongjun,et al.Application of catalytic cracking additive FLOS-Ⅲfor more propylene and isobutene[J].Petroleum Processing and Petrochemicals,2015,46(3):24-28.)
[3]谢朝钢.催化热裂解生产乙烯技术的研究及反应机理的探讨[J].石油炼制与化工,2000,31(7):40-44.(XIEChaogang.Studies on catalytic pyrolysis process for ethylene production and its reaction mechanism[J].Petroleum Processing and Petrochemicals,2000,31(7):40-44.)
[4]BUCHANAN J S.The chemistry of olefins production by ZSM-5 addition to catalytic cracking units[J].Catalysis Today,2000,55(3):207-212.
[5]CORMA A,MELO F,SAUVANAUD L,et al.Different process schemes for converting light straight run and fluid catalytic cracking naphthas in a FCC unit for maximum propylene production[J].Applied Catalysis A:General,2004,265(2):195-206.
[6]RAHIMI N,KARIMZADEH R.Catalytic cracking of hydrocarbons over modified ZSM-5zeolites to produce light olefins:A review[J].Applied Catalysis A:General,2011,398(1/2):1-17.
[7]WANG Gang,XU Chunming,GAO Jinsen.Study of cracking FCC naphtha in a secondary riser of the FCCunit for maximum propylene production[J].Fuel Processing Technology,2008,89(9):864-873.
[8]李再婷,蒋福康,谢朝钢,等.催化裂解工艺技术及其工业应用[J].当代石油石化,2001,9(10):31-35.(LI Zaiting,JIANG Fukang,XIE Chaogang,et al.DCC technology and its commercial experience[J].Petroleum&Petrochemical Today,2001,9(10):31-35.)
[9]汪燮卿,舒兴田.重质油裂解制轻烯烃[M].第1版.北京:中国石化出版社,2015:200.
[10]LIU Zhichang,MENG Xianghai,XU Chunming,et al.Secondary cracking of gasoline and diesel from heavy oil catalytic pyrolysis[J].Chinese Journal of Chemical Engineering,2007,15(3):309-314.
[11]谢朝钢.催化裂解过程丙烯选择性的影响因数探究[J].石油学报(石油加工),2018,34(1):1-5.(XIEChaogang.Study on influencing factors of propylene selectivity in deep catalytic cracking process[J].Acta Petrolei Sinica(Petroleum Processing Section),2018,34(1):1-5.)
[12]张执刚,谢朝钢,朱根权.增强型催化裂解技术(DCC-PLUS)试验研究[J].石油炼制与化工,2010,41(6):39-43.(ZHANG Zhigang,XIE Chaogang,ZHUGenquan.Experimental study of DCC-PLUS technology[J].Petroleum Processing and Petrochemicals,2010,41(6):39-43.)
[13]马文明,谢朝钢,朱根权,等.2.2 Mt/a增强型催化裂解装置运行情况分析[J].石油炼制与化工,2018,49(1):13-19.(MA Wenming,XIE Chaogang,ZHUGenquan,et al.Operational performace analysis of a2.2Mt/a DCC-plus unit[J].Petroleum Processing and Petrochemicals,2018,49(1):13-19.)
[14]赵长斌.增强型催化裂解装置开工初期调整策略及效果[J].石油炼制与化工,2017,48(9):54-58.(ZHAOChangbin.Adjusting measures for problems at initial stage of DCC-plus unit and effect[J].Petroleum Processing and Petrochemicals,2017,48(9):54-58.)
[15]CORMA A,ORCHILLéS A V.Current views on the mechanism of catalytic cracking[J].Microporous and Mesoporous Materials,2000,35/36:21-30.
[16]马文明,谢朝钢,朱根权.原料油加氢深度对催化裂解反应性能及氢转移反应影响[C]//北京:2017年中国石油炼制科技大会,2017:239-245.
[17]谢朝钢,魏晓丽,龙军.重油催化裂解制取丙烯的分子反应化学[J].石油学报(石油加工),2015,31(2):307-314.(XIE Chaogang,WEI Xiaoli,LONG Jun.Molecular reaction chemistry of heavy oil catalytic cracking to propylene[J].Acta Petrolei Sinica(Petroleum Processing Section),2015,31(2):307-314.)
[18]李正,侯栓弟,谢朝钢,等.重油催化裂解反应条件下丙烯的转化反应Ⅰ.反应性能及反应路径[J].石油学报(石油加工),2009,25(2):139-144.(LI Zheng,HOU Shuandi,XIE Chaogang,et al.Propylene transformation during deep catalytic cracking of heavy oil[J].Acta Petrolei Sinica(Petroleum Processing Section),2009,25(2):139-144.)
[19]王达林,张峰,冯景民,等.DCC-plus工艺的工业应用及适应性分析[J].石油炼制与化工,2015,46(2):71-75.(WANG Dalin,ZHANG Feng,FENG Jingmin,et al.Analysis of commercial application and flexibility of DCC-plus process[J].Petroleum Processing and Petrochemicals,2015,46(2):71-75.)
[20]高永灿.海外首套DCC-plus装置在泰国IRPC公司成功开工运行[J].石油炼制与化工,2016,47(6):9.
[21]乌忠理,刘生海,邵治堂,等.重油催化热裂解工艺污染铁对催化剂性能的影响与对策[J].石油炼制与化工,2018,49(1):26-29.(WU Zhongli,LIU Shenghai,SHAO Zhitang,et al.Effects of iron contamination on performance of catalyst in heavy oil catalytic pyrolysis process and countermeasures[J].Petroleum Processing and Petrochemicals,2018,49(1):26-29.)