气流式雾化喷嘴在甲醇制丙烯反应器内的应用研究
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摘要
为了实现双通道气流式雾化喷嘴在工业化MTP多段激冷固定床内的应用,将其配置于固定床进料分布器组中,在直径12 m反应器第四级床层开展工业适应性研究,分析了不同运行周期内侧线反应物料、反应器床层出入口温度、不同位置处床层温度等变化规律。结果表明:诱导期内,液相物料进料量达1 297 kg/h,气相物料进料量为10 070 m3/h,对应床层入口温度和出口温度分别为460℃和485℃;稳定期内,液相物料进料量降至1 069 kg/h,气相物料进料量增至10 811 m3/h,对应床层入口温度和出口温度分别为459℃和490℃;失活期内,气相物料进料量略微降低,达10 006 m3/h,而液相物料进料量增至1 302 kg/h,此时床层入口和出口温度依次为466℃和490℃,双通道气流式雾化喷嘴较鲁奇公司的喷嘴更易调控反应器床层温度。
In order to apply two-channel air-blast atomizing nozzles into an industrial MTP multistage quenching fixed-bed reactor,the nozzles were deployed in the feeding distributors of the fixed-bed,and then industrial adaptivity of the nozzles installed in the fourth bed of the reactor with the diameter of 12 m was studied.The relationships among feeding rates of sideline reactants,inlet & outlet temperatures of the reactor bed and bed temperatures in different locations were also analyzed.The results showed that at induction phase,the feeding rates of gas-phase reactants and liquid-phase reactants arrived at 10 070 m3/h and 1 297 kg/h,with the corresponding inlet & outlet temperatures of the bed being 460 ℃ and 485 ℃ respectively.At the stable phase,the feeding rates of liquid-phase reactants and gas-phase reactants were 1 069 kg/h and 10 811 m3/h,and the corresponding inlet & outlet temperatures of the bed were 459 ℃ and 490 ℃.During the period of the deactivation,the feeding rates of gas-phase reactants slightly decreased to 10 006 m3/h,while the feeding rate of liquid-phase reactants increased to 1 302 kg/h,and the inlet & outlet temperatures of the bed became 466 ℃ and 490℃. Compared with Luqi nozzles,it is easier for the two-channel air-blast nozzles to regulate the bed temperature of the MTP reactor.
In order to apply two-channel air-blast atomizing nozzles into an industrial MTP multistage quenching fixed-bed reactor,the nozzles were deployed in the feeding distributors of the fixed-bed,and then industrial adaptivity of the nozzles installed in the fourth bed of the reactor with the diameter of 12 m was studied.The relationships among feeding rates of sideline reactants,inlet & outlet temperatures of the reactor bed and bed temperatures in different locations were also analyzed.The results showed that at induction phase,the feeding rates of gas-phase reactants and liquid-phase reactants arrived at 10 070 m3/h and 1 297 kg/h,with the corresponding inlet & outlet temperatures of the bed being 460 ℃ and 485 ℃ respectively.At the stable phase,the feeding rates of liquid-phase reactants and gas-phase reactants were 1 069 kg/h and 10 811 m3/h,and the corresponding inlet & outlet temperatures of the bed were 459 ℃ and 490 ℃.During the period of the deactivation,the feeding rates of gas-phase reactants slightly decreased to 10 006 m3/h,while the feeding rate of liquid-phase reactants increased to 1 302 kg/h,and the inlet & outlet temperatures of the bed became 466 ℃ and 490℃. Compared with Luqi nozzles,it is easier for the two-channel air-blast nozzles to regulate the bed temperature of the MTP reactor.
引文
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[12] CHANG C D,CHU C T W,Socha R F.Methanol conversion to olefins over ZSM-5[J]. Journal of Catalysis,1984,86(2):289-296.
[13]潘红艳,田敏,何志艳,等.甲醇制烯烃用ZSM-5分子筛的研究进展[J].化工进展,2014,33(10):2625-2633.PAN Hongyan,TIAN Min,HE Zhiyan,et al.Advances in research on modified ZSM-5 molecular sieves for conversion of methanol to olefins[J].Chemical Industry and Engineering Progress,2014,33(10):2625-2633.
[14]宋鹏飞,侯建国,王秀林,等.绝热多段固定床甲烷化反应器设计中几个问题的研究[J].现代化工,2014,34(10):143-145,147.SONG Pengfei,HOU Jianguo,WANG Xiulin,et al.Several design problems of multistage fixed bed adiabatic methanation reactor[J].Modern Chemical Industry,2014,34(10):143-145(147).
[15]陈丽.我国MTO/MTP生产技术的研究进展[J].石油化工,2015,44(8):1024-1027.CHEN Li.Progresses in MTO/MTP technologies at home[J].Petrochemical Technology,2015,44(8):1024-1027.
[16]冯琦瑶,邢爱华,张新锋,等.ZSM-5分子筛在甲醇转化制烯烃领域应用的研究进展[J].工业催化,2016,24(1):15-23.FENG Qiyao,XING Aihua,ZHANG Xinfeng,et al. Research progress in the application of ZSM-5 molecular sieves in the methanol-to-olefin field[J]. Industrial Catalysis,2016,24(1):15-23.
[17] ALVAREZ Majmutov A,CHEN Jinwen.Stochastic Modeling and Simulation Approach for Industrial Fixed-Bed Hydrocrackers[J].Industrial&Engineering Chemistry Research,2017,56(24):6926-6938.
[18] YARULINA M,CHOWDHURY A D,MEIRER F,et al. Recent trends and fundamental insights in the methanol-to-hydrocarbons process[J].Nature Catalysis,2018,1:398-411.
[19]庄壮,匡建平,雍晓静,等.不同液相孔径对MTP反应器喷嘴雾化性能的影响[J].天然气化工:C1化学与化工,2016,41(6):78-83.ZHUANG Zhuang,KUANG Jianping,YONG Xiaojing,et al.Effect of liquid-phase pore diameters on atomization performance of spraying nozzles in MTP reactor[J].Natural Gas Chemical Industry,2016,41(6):78-83.
[20]庄壮,梁健,罗春桃,等.双通道气流式MTP反应喷嘴雾滴粒径分布的研究[J].化学工程,2017,45(8):42-48.ZHUANG Zhuang,LIANG Jian,LUO Chuntao,et al. Droplet size distribution of two-fluid airblast atomizing nozzle in MTP reactor[J].Chemical Engineering(China),2017,45(8):42-48.
[21]神华集团有限责任公司.一种固定床多相雾化喷嘴,中国专利:201610158146.8[P].2018-03-30.
[22]张少龙,张兰兰,王务刚,等.纳米薄层HZSM-5分子筛催化甲醇制丙烯[J].物理化学学报,2014,30(3):535-543.ZHANG Shaolong,ZHANG Lanlan,WANG Wugang,et al.Methanol to propylene over Nanosheets of HZSM-5 zeolite[J].Acta Physico-Chimica Sinica,2014,30(3):535-543.
[23]梁健,庄壮,邬文燕,等.甲醇制丙烯反应器雾化喷嘴的性能研究[J].石油化工,2017,46(7):908-913.LIANG Jian,ZHUANG Zhuang,WU Wenyan,et al. Performance of atomization nozzles in methanol to propylene reactor[J].Petrochemical Technology,2017,46(7):908-913.
[2]高天明,张艳.中国煤炭资源高效清洁利用路径研究[J].煤炭科学技术,2018,46(7):157-164.GAO Tianming,ZHANG Yan.Study on high efficient and clean utilization ways of China’s coal resources[J].Coal Science and Technology,2018,46(7):157-164.
[3]章丽萍,魏含宇,李鹏程,等.煤制烯烃废水中苯乙烯的UV/O3处理技术研究[J].煤炭科学技术,2018,46(9):68-74.ZHANG Liping,WEI Hanyu,LI Pengcheng,et al. Study on wastewater treatment technology of styrene from coal to olefin treated by UV/O3[J]. Coal Science and Technology,2018,46(9):68-74.
[4] KOEMPEL H,LIEBNER W.Lurgi's Methanol To Propylene(MTP)Report on a successful commercialization[J]. Studies in Surface Science and Catalysis,2007,167(6):261-267.
[5]王垚,狄佐星,李玉新,等.用于甲醇制烯烃的非均相催化反应器评述[J].化工学报,2014,65(7):2474-2484.WANG Yao,DI Zuoxing,LI Yuxin,et al.Multiphase catalytic reactors for methanol-to-olefins[J]. CIESC Journal,2014,65(7):2474-2484.
[6]范素兵,王启馨,李霞,等.MTP反应中调控双循环机理实现增产丙烯[J].天然气化工,2018,43(6):1-5.FAN Subing,WANG Qixin,LI Xia,et al. Modulating dual-cycle mechanism for increasing propylene in MTP reaction[J]. Natural Gas Chemical Industry,2018,43(6):1-5.
[7]张云鹏,李明罡,邢恩会,等.不同结构扩孔分子筛催化MTP反应行为及表面积炭物种表征[J].燃料化学学报,2018,46(9):1101-1112.ZHANG Yunpeng,LI Minggang,XING Enhui,et al. Methanol to propylene reaction performance and trapped carbonaceous species over zeolites with different topologies[J].Journal of Fuel Chemistry and Technology,2018,46(9):1101-1112.
[8]刘中民,刘昱,叶茂,等.1.80 Mt/a甲醇进料DMTO工艺技术及其装置特点[J].炼油技术与工程,2014,44(7):1-6.LIU Zhongmin,LIU Yu,YE Mao,et al. Process technology for DMTO unit with a capacity of 1.8 MM TPY methanol feed and unit features[J].Petroleum Refinery Engineering,2014,44(7):1-6.
[9]李希,应磊,成有为,等.甲醇制烯烃多级串联流化床反应器模拟[J].化工学报,2015,66(8):3041-3049.LI Xi,YING Lei,CHENG Youwei,et al.Simulation of multi-fluidized-bed in series for methanol to olefins[J]. CIESC Journal,2015,66(8):3041-3049.
[10]杨贺勤,刘志成,谢在库.绿色化工技术研究新进展[J].化工进展,2016,35(6):1575-1586.YANG Heqin,LIU Zhicheng,XIE Zaiku. Review of recent development of green chemical technologies[J].Chemical Industry and Engineering Progress,2016,35(6):1575-1586.
[11] ZHONG Jiawi,HAN Jingfeng,WEI Yingxu,et al.Enhancing ethylene selectivity in MTO reaction by incorporating metal species in the cavity of SAPO-34 catalysts[J].Chinese Journal of Catalysis,2018,39(11):1821-1831.
[12] CHANG C D,CHU C T W,Socha R F.Methanol conversion to olefins over ZSM-5[J]. Journal of Catalysis,1984,86(2):289-296.
[13]潘红艳,田敏,何志艳,等.甲醇制烯烃用ZSM-5分子筛的研究进展[J].化工进展,2014,33(10):2625-2633.PAN Hongyan,TIAN Min,HE Zhiyan,et al.Advances in research on modified ZSM-5 molecular sieves for conversion of methanol to olefins[J].Chemical Industry and Engineering Progress,2014,33(10):2625-2633.
[14]宋鹏飞,侯建国,王秀林,等.绝热多段固定床甲烷化反应器设计中几个问题的研究[J].现代化工,2014,34(10):143-145,147.SONG Pengfei,HOU Jianguo,WANG Xiulin,et al.Several design problems of multistage fixed bed adiabatic methanation reactor[J].Modern Chemical Industry,2014,34(10):143-145(147).
[15]陈丽.我国MTO/MTP生产技术的研究进展[J].石油化工,2015,44(8):1024-1027.CHEN Li.Progresses in MTO/MTP technologies at home[J].Petrochemical Technology,2015,44(8):1024-1027.
[16]冯琦瑶,邢爱华,张新锋,等.ZSM-5分子筛在甲醇转化制烯烃领域应用的研究进展[J].工业催化,2016,24(1):15-23.FENG Qiyao,XING Aihua,ZHANG Xinfeng,et al. Research progress in the application of ZSM-5 molecular sieves in the methanol-to-olefin field[J]. Industrial Catalysis,2016,24(1):15-23.
[17] ALVAREZ Majmutov A,CHEN Jinwen.Stochastic Modeling and Simulation Approach for Industrial Fixed-Bed Hydrocrackers[J].Industrial&Engineering Chemistry Research,2017,56(24):6926-6938.
[18] YARULINA M,CHOWDHURY A D,MEIRER F,et al. Recent trends and fundamental insights in the methanol-to-hydrocarbons process[J].Nature Catalysis,2018,1:398-411.
[19]庄壮,匡建平,雍晓静,等.不同液相孔径对MTP反应器喷嘴雾化性能的影响[J].天然气化工:C1化学与化工,2016,41(6):78-83.ZHUANG Zhuang,KUANG Jianping,YONG Xiaojing,et al.Effect of liquid-phase pore diameters on atomization performance of spraying nozzles in MTP reactor[J].Natural Gas Chemical Industry,2016,41(6):78-83.
[20]庄壮,梁健,罗春桃,等.双通道气流式MTP反应喷嘴雾滴粒径分布的研究[J].化学工程,2017,45(8):42-48.ZHUANG Zhuang,LIANG Jian,LUO Chuntao,et al. Droplet size distribution of two-fluid airblast atomizing nozzle in MTP reactor[J].Chemical Engineering(China),2017,45(8):42-48.
[21]神华集团有限责任公司.一种固定床多相雾化喷嘴,中国专利:201610158146.8[P].2018-03-30.
[22]张少龙,张兰兰,王务刚,等.纳米薄层HZSM-5分子筛催化甲醇制丙烯[J].物理化学学报,2014,30(3):535-543.ZHANG Shaolong,ZHANG Lanlan,WANG Wugang,et al.Methanol to propylene over Nanosheets of HZSM-5 zeolite[J].Acta Physico-Chimica Sinica,2014,30(3):535-543.
[23]梁健,庄壮,邬文燕,等.甲醇制丙烯反应器雾化喷嘴的性能研究[J].石油化工,2017,46(7):908-913.LIANG Jian,ZHUANG Zhuang,WU Wenyan,et al. Performance of atomization nozzles in methanol to propylene reactor[J].Petrochemical Technology,2017,46(7):908-913.