浅析超重力法循环碱液再生新技术
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摘要
中国石油庆阳石化公司具有370×104t/a炼油总加工能力,配套185×104t/a催化裂化装置及35×104t/a液化气精制装置。35×104t/a液化气精制装置于2010年10月1日建成并一次性开车成功,其中胺法液化气脱硫系统以及碱法液化气脱硫醇系统运行正常,但存在新鲜碱液消耗量偏高、碱渣产生量大的问题,造成装置加工成本偏高。分析认为造成该问题的根本原因是碱液再生系统工艺设计落后。为有效解决该问题,决定采用中国石油石油化工研究院开发的液化气深度脱硫技术(LDS),应用超重力法循环碱液再生新技术进行碱液再生。2014年11月20日完成了装置配套的碱液再生系统改造,装置开工至今运行平稳,直接节约费用316. 32万元/a,有效解决了新鲜碱液消耗量偏高、碱渣产生量大的问题。超重力法循环碱液再生新技术工业应用效果良好,和传统碱液再生系统工艺相比,创新点高,碱液消耗量及碱渣产生量均大幅度降低,经济效益显著。
Qingyang Petrochemical Company has a total refining processing capacity of 3. 7 million tons/year,with 1. 85 million tons/year catalytic cracking unit. The 350 000 tons/year liquefied gas refining unit was completed on Oct.1,2010 and started up successfully at one time,in which the amine liquefied gas desulfurization system and the alkali liquefied gas desulfurization system were running normally. However,the problem is that the unit consumption of lye is too high and the production of alkali slag is large,which leads to the high processing cost of the unit. In order to reduce the processing cost,the alkali regeneration system was started later,but after nearly 3 months of trial operation,the alkali regeneration effect was poor,and the problem of high alkali slag consumption per unit alkali solution could not be solved effectively. It is considered that the root cause is that the process design of lye regeneration system is backward. In order to effectively solve the bottleneck effect of high alkali slag consumption,it was decided to use the liquefied gas deep desulphurization technology developed by the China Institute of Petroleum and Chemical Engineering(LDS),to carry out lye regeneration by using hypergravity technology.The revamping of the lye regeneration system in the plant was completed on November 20,2014. The operation of the plant has been stable so far,which effectively solves the bottleneck problem of high alkali slag consumption per unit consumption of lye. The direct cost savings are about 3. 163 2 million yuan per year. The industrial application effect of liquefied gas deep desulfurization technology(LDS) is good.Compared with the traditional process,the innovation point is higher,the amount of alkali slag consumed by lye is greatly reduced,and the economic benefit is remarkable.
Qingyang Petrochemical Company has a total refining processing capacity of 3. 7 million tons/year,with 1. 85 million tons/year catalytic cracking unit. The 350 000 tons/year liquefied gas refining unit was completed on Oct.1,2010 and started up successfully at one time,in which the amine liquefied gas desulfurization system and the alkali liquefied gas desulfurization system were running normally. However,the problem is that the unit consumption of lye is too high and the production of alkali slag is large,which leads to the high processing cost of the unit. In order to reduce the processing cost,the alkali regeneration system was started later,but after nearly 3 months of trial operation,the alkali regeneration effect was poor,and the problem of high alkali slag consumption per unit alkali solution could not be solved effectively. It is considered that the root cause is that the process design of lye regeneration system is backward. In order to effectively solve the bottleneck effect of high alkali slag consumption,it was decided to use the liquefied gas deep desulphurization technology developed by the China Institute of Petroleum and Chemical Engineering(LDS),to carry out lye regeneration by using hypergravity technology.The revamping of the lye regeneration system in the plant was completed on November 20,2014. The operation of the plant has been stable so far,which effectively solves the bottleneck problem of high alkali slag consumption per unit consumption of lye. The direct cost savings are about 3. 163 2 million yuan per year. The industrial application effect of liquefied gas deep desulfurization technology(LDS) is good.Compared with the traditional process,the innovation point is higher,the amount of alkali slag consumed by lye is greatly reduced,and the economic benefit is remarkable.
引文
[1]陈俊武．催化裂化工艺与工程[M]．第2版．北京:中国石化出版社，2005.Chen Junwu. Catalytic Cracking Process and Engineering[M]. 2nd ed. Beijing:China Petrochemical Press,2005.
[2]郭栋，荆举祥，姜鹏，等．液化气无苛性碱精制脱硫工艺的开发及工业应用[J]．石油炼制与化工，2015,46(9):43-46.Guo Dong,Jing Juxiang,Jiang Peng,et al. Development and Commercial Application of Alkali-Free LPG Refining[J].Petroleum Processing and Petrochemicals,2015,46(9):43-46.
[3]张怀清．液化气胺法脱硫存在问题分析与改进措施[J]．化工生产与技术，2012,19(1):50-52.Zhang Huaiqing. Analysis and Improvement Measure of the Problems in Liquefied Gas Amine Desulfurization[J]. Chemical Production and Technology,2012,19(1):50-52.
[4]陆建刚，王连军，李健生，等．MDEA-TBEE复合溶剂吸收酸性气体性能的研究[J]．高校化学工程学报，2005,19(4):450-455.Lu Jiangang,Wang Lianjun,Li Jiansheng,et al. A Study on Performances of Acidic Gases Absorption into Aqueous Solution of MDEA-TBEE Complex Solvents[J]. Journal of Chemical Engineering of Chinese Universities, 2005, 19(4):450-455.
[5]符秀兰．脱硫溶剂MDEA的再生工艺[J]．硫磷设计与粉体工程，2007(4):30-33.Fu Xiulan. Regeneration Process of Desulfurization Solvent MDEA[J]. Sulphur Phosphorus&Bulk Materials Handling Related Engineering,2007(4):30-33.
[6]王炎．石油化工设备在湿硫化氢环境中的腐蚀与防护分析[J]．化工管理，2017(1):159.Wang Yan. Analysis on the Corrosion and Protection of Petrochemical Equipment in Wet Hydrogen Sulfide Environment[J]. Chemical Enterprise Management,2017(1):159.
[7]于磊，金丹．催化裂化装置中液化气脱硫醇系统的技术改造[J]．石油化工，2013,42(11):1268-1271.Yu Lei,Jin Dan. Revamp of Sweetening System of Liquefied Petroleum Gas in Catalytic Cracking Unit[J]. Petrochemical Technology,2013,42(11):1268-1271.
[8]李旭晖，徐艳丽，司海娟，等．汽油纤维膜脱硫醇工艺中硫化物氧化反应的研究[J]．石油化工，2009,38(6):630-634.Li Xuhui,Xu Yanli,Si Haijuan,et al. Sulfide Oxidation in Fiber-Liquid Membrane Demercaptanizing Process for Gasoline[J]. Petrochemical Technology,2009,38(6):630-634.
[9]闫森智，李旭辉，司海娟，等．一种新的汽油脱硫醇工艺技术的应用研究[J]．甘肃科技，2012,28(19):24-25.Yan Senzhi,Li Xuhui,Si Haijuan,et al. Application Research of a New Gasoline Sweetening Process Technology[J]. Gansu Science and Technology,2012,28(19):24-25.
[10]李旭晖，王运波，柏海燕，等．轻质油品精制高效传质设备-纤维液膜接触器[J]．石油化工设备，2003,32(5):47-49.Li Xuhui,Wang Yunbo,Bai Haiyan,et al. High Efficient Mass Transfer Equipment for Oil Processing-Fiber Film Contactor[J]. Petro-Chemical Equipment,2003,32(5):47-49.
[11]闫森智，李旭辉，司海娟，等．纤维液膜脱硫技术在汽油脱硫醇工艺中的应用研究[J]．甘肃科技，2012,28(20):33-35.Yan Senzhi,Li Xuhui,Si Haijuan,et al. Application of Fiber-film Mercaptans Removal Technology in Gasoline Sweetening Process[J]. Gansu Science and Technology,2012,28(20):33-35.
[12]司海娟，李旭辉，王运波，等．纤维液膜技术在轻质油品精制过程中的应用[J]．石油化工设备，2011,40(增刊2):28-30.Si Haijuan,Li Xuhui,Wang Yunbo,et al. Application of Fiber-liquid-film Technology in Light Oil Refining[J].Petro-Chemical Equipment,2011,40(Suppl 2):28-30.
[13]李旭晖．轻质油品纤维膜脱硫应用基础研究[D]．青岛:中国石油大学(华东)，2010.Li Xuhui. Applicable Basic Study on Desulfurization of Light Oil by Fiber Film Process[D]. Qingdao:China University of Petroleum(East China),2010.
[14]党建军，龚朝兵，花飞．纤维膜脱硫醇工艺在惠炼液态烃脱硫醇装置中的应用[J]．广东化工，2010,37(7):129-131.Dang Jianjun, Gong Chaobing, Hua Fei. Application of Fiber-film Sweetening Process in LPG Sweetening Units of CNOOC Huizhou Refinery[J]. Guangdong Chemical Industry,2010,37(7):129-131.
[15]王淼，曾晓飞，王洁欣，等．超重力法纳米材料的可控制备与应用[J]．新材料产业，2015(8):52-57.Wang Miao, Zeng Xiaofei, Wang Jiexin, et al. The Controllable Preparation and Application of the Super-gravity Method of Nano-material[J]. Advanced Materials Industry,2015(8):52-57.
[16]丁中海．碱液再生工艺探讨[J]．华东科技(学术版)，2016(6):384.Ding Zhonghai. Discussion on Lye Regeneration Process[J].East China Science and Technology(Academic Edition),2016(6):384.
[17]胡雪生，高飞，范明，等．环保型液化气深度脱硫LDS技术的开发与应用[J]．石油炼制与化工，2018,49(9):11-15.Hu Xuesheng,Gao Fei,Fan Ming,et al. Development and Commercial Application of Environment-friendly LPG Deep Desulfurization(LDS)Technology[J]. Petroleum Processing and Petrochemicals,2018,49(9):11-15.
[18]付连祥，王洪春．液化气深度脱硫醇技术的应用与分析[J]．山东化工，2011,40(11):64-66.Fu Lianxiang,Wang Hongchun. Application and Analysis of LPG Deep Desulphurization Technology[J]. Shandong Chemical Industry,2011,40(11):64-66.
[19]纪维钧．液化气深度脱硫醇技术的应用与分析．环球市场，2017(9):197.Ji Weijun. Application and Analysis of LPG Deep Desulphurization Technology[J]. Global Market, 2017(9):197.
[20]郑宁来．中国石油首创液化气脱硫不排渣新技术[J]．石油炼制与化工，2017,48(6):20.Zheng Ninglai. PetroChina Pioneered a New Technology for LPG Desulphurization Without Slag Discharge[J]. Petroleum Processing and Petrochemicals,2017,48(6):20.
[2]郭栋，荆举祥，姜鹏，等．液化气无苛性碱精制脱硫工艺的开发及工业应用[J]．石油炼制与化工，2015,46(9):43-46.Guo Dong,Jing Juxiang,Jiang Peng,et al. Development and Commercial Application of Alkali-Free LPG Refining[J].Petroleum Processing and Petrochemicals,2015,46(9):43-46.
[3]张怀清．液化气胺法脱硫存在问题分析与改进措施[J]．化工生产与技术，2012,19(1):50-52.Zhang Huaiqing. Analysis and Improvement Measure of the Problems in Liquefied Gas Amine Desulfurization[J]. Chemical Production and Technology,2012,19(1):50-52.
[4]陆建刚，王连军，李健生，等．MDEA-TBEE复合溶剂吸收酸性气体性能的研究[J]．高校化学工程学报，2005,19(4):450-455.Lu Jiangang,Wang Lianjun,Li Jiansheng,et al. A Study on Performances of Acidic Gases Absorption into Aqueous Solution of MDEA-TBEE Complex Solvents[J]. Journal of Chemical Engineering of Chinese Universities, 2005, 19(4):450-455.
[5]符秀兰．脱硫溶剂MDEA的再生工艺[J]．硫磷设计与粉体工程，2007(4):30-33.Fu Xiulan. Regeneration Process of Desulfurization Solvent MDEA[J]. Sulphur Phosphorus&Bulk Materials Handling Related Engineering,2007(4):30-33.
[6]王炎．石油化工设备在湿硫化氢环境中的腐蚀与防护分析[J]．化工管理，2017(1):159.Wang Yan. Analysis on the Corrosion and Protection of Petrochemical Equipment in Wet Hydrogen Sulfide Environment[J]. Chemical Enterprise Management,2017(1):159.
[7]于磊，金丹．催化裂化装置中液化气脱硫醇系统的技术改造[J]．石油化工，2013,42(11):1268-1271.Yu Lei,Jin Dan. Revamp of Sweetening System of Liquefied Petroleum Gas in Catalytic Cracking Unit[J]. Petrochemical Technology,2013,42(11):1268-1271.
[8]李旭晖，徐艳丽，司海娟，等．汽油纤维膜脱硫醇工艺中硫化物氧化反应的研究[J]．石油化工，2009,38(6):630-634.Li Xuhui,Xu Yanli,Si Haijuan,et al. Sulfide Oxidation in Fiber-Liquid Membrane Demercaptanizing Process for Gasoline[J]. Petrochemical Technology,2009,38(6):630-634.
[9]闫森智，李旭辉，司海娟，等．一种新的汽油脱硫醇工艺技术的应用研究[J]．甘肃科技，2012,28(19):24-25.Yan Senzhi,Li Xuhui,Si Haijuan,et al. Application Research of a New Gasoline Sweetening Process Technology[J]. Gansu Science and Technology,2012,28(19):24-25.
[10]李旭晖，王运波，柏海燕，等．轻质油品精制高效传质设备-纤维液膜接触器[J]．石油化工设备，2003,32(5):47-49.Li Xuhui,Wang Yunbo,Bai Haiyan,et al. High Efficient Mass Transfer Equipment for Oil Processing-Fiber Film Contactor[J]. Petro-Chemical Equipment,2003,32(5):47-49.
[11]闫森智，李旭辉，司海娟，等．纤维液膜脱硫技术在汽油脱硫醇工艺中的应用研究[J]．甘肃科技，2012,28(20):33-35.Yan Senzhi,Li Xuhui,Si Haijuan,et al. Application of Fiber-film Mercaptans Removal Technology in Gasoline Sweetening Process[J]. Gansu Science and Technology,2012,28(20):33-35.
[12]司海娟，李旭辉，王运波，等．纤维液膜技术在轻质油品精制过程中的应用[J]．石油化工设备，2011,40(增刊2):28-30.Si Haijuan,Li Xuhui,Wang Yunbo,et al. Application of Fiber-liquid-film Technology in Light Oil Refining[J].Petro-Chemical Equipment,2011,40(Suppl 2):28-30.
[13]李旭晖．轻质油品纤维膜脱硫应用基础研究[D]．青岛:中国石油大学(华东)，2010.Li Xuhui. Applicable Basic Study on Desulfurization of Light Oil by Fiber Film Process[D]. Qingdao:China University of Petroleum(East China),2010.
[14]党建军，龚朝兵，花飞．纤维膜脱硫醇工艺在惠炼液态烃脱硫醇装置中的应用[J]．广东化工，2010,37(7):129-131.Dang Jianjun, Gong Chaobing, Hua Fei. Application of Fiber-film Sweetening Process in LPG Sweetening Units of CNOOC Huizhou Refinery[J]. Guangdong Chemical Industry,2010,37(7):129-131.
[15]王淼，曾晓飞，王洁欣，等．超重力法纳米材料的可控制备与应用[J]．新材料产业，2015(8):52-57.Wang Miao, Zeng Xiaofei, Wang Jiexin, et al. The Controllable Preparation and Application of the Super-gravity Method of Nano-material[J]. Advanced Materials Industry,2015(8):52-57.
[16]丁中海．碱液再生工艺探讨[J]．华东科技(学术版)，2016(6):384.Ding Zhonghai. Discussion on Lye Regeneration Process[J].East China Science and Technology(Academic Edition),2016(6):384.
[17]胡雪生，高飞，范明，等．环保型液化气深度脱硫LDS技术的开发与应用[J]．石油炼制与化工，2018,49(9):11-15.Hu Xuesheng,Gao Fei,Fan Ming,et al. Development and Commercial Application of Environment-friendly LPG Deep Desulfurization(LDS)Technology[J]. Petroleum Processing and Petrochemicals,2018,49(9):11-15.
[18]付连祥，王洪春．液化气深度脱硫醇技术的应用与分析[J]．山东化工，2011,40(11):64-66.Fu Lianxiang,Wang Hongchun. Application and Analysis of LPG Deep Desulphurization Technology[J]. Shandong Chemical Industry,2011,40(11):64-66.
[19]纪维钧．液化气深度脱硫醇技术的应用与分析．环球市场，2017(9):197.Ji Weijun. Application and Analysis of LPG Deep Desulphurization Technology[J]. Global Market, 2017(9):197.
[20]郑宁来．中国石油首创液化气脱硫不排渣新技术[J]．石油炼制与化工，2017,48(6):20.Zheng Ninglai. PetroChina Pioneered a New Technology for LPG Desulphurization Without Slag Discharge[J]. Petroleum Processing and Petrochemicals,2017,48(6):20.
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