LNG-FSRU中间介质再气化工艺优选
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摘要
LNG浮式储存与再气化装置(Floating Storage Regasification Unit,FSRU)的建设周期短、装置灵活性高,其再气化模块是LNG-FSRU的重要功能模块,中间介质气化器(Intermediate Fluid Vaporizer,IFV)则是LNG-FSRU关键设备之一。基于LNG-FSRU中间介质再气化工艺现状,选择4种中间介质与2种加热源进行组合,确立8种再气化工艺流程,利用Aspen HYSYS软件建立再气化工艺流程模型,对再气化工艺进行敏感性分析。模拟结果表明:以丙烷为中间介质的整体式海水加热再气化工艺所需的海水流量及丙烷循环量较低,气化器结构紧凑、经济性好,其可作为LNG-FSRU再气化工艺的首选;当海水温度较低时,可采用海水和蒸汽联合加热的再气化方式。研究结果可为LNG-FSRU再气化系统的设计提供参考。
LNG floating storage regasification unit(LNG-FSRU) is characterized by short construction period and strong flexibility. Its regasification module is the important functional module of LNG-FSRU and the intermediate fluid vaporizer(IFV) is one of the key equipments of LNG-FSRU. Based on the status of LNG-FSRU intermediate fluid regasification technologies, 4 intermediate fluids and 2 heating sources were combined to build up 8 LNG regasification processes. Then, the regasification process model was established using Aspen HYSYS software, and sensitivity analysis was carried out on the regasification process. It is indicated that the integrally-installed seawater regasification process with propane as the intermediate medium is low in seawater flow rate and propane circulation rate and its vaporizer is structurally compact and economically good, so it can be taken as the first choice LNG-FSRU regasification process. When the seawater temperature is low, the regasification can be realized based on joint heating of seawater and steam. The research results can provide reference for the design of LNG-FSRU regasification system.
LNG floating storage regasification unit(LNG-FSRU) is characterized by short construction period and strong flexibility. Its regasification module is the important functional module of LNG-FSRU and the intermediate fluid vaporizer(IFV) is one of the key equipments of LNG-FSRU. Based on the status of LNG-FSRU intermediate fluid regasification technologies, 4 intermediate fluids and 2 heating sources were combined to build up 8 LNG regasification processes. Then, the regasification process model was established using Aspen HYSYS software, and sensitivity analysis was carried out on the regasification process. It is indicated that the integrally-installed seawater regasification process with propane as the intermediate medium is low in seawater flow rate and propane circulation rate and its vaporizer is structurally compact and economically good, so it can be taken as the first choice LNG-FSRU regasification process. When the seawater temperature is low, the regasification can be realized based on joint heating of seawater and steam. The research results can provide reference for the design of LNG-FSRU regasification system.
引文
[1]吴齐伟.国内外LNG供需现状及价格趋势分析[J].天然气技术与经济,2014,8(2):60-64.WU Q W.LNG supply and demand situation and price trend analysis at home and abroad[J].Natural Gas Technology,2014,8(2):60-64.
[2]曾燕丽.浅析中国LNG应用技术发展现状及前景[J].中国石油和化工标准与质量,2012,33(16):242.ZENG Y L.An analysis of the present situation and prospect of the development of LNG application technology in China[J].China Petroleum and Chemical Standard and Quality,2012,33(16):242.
[3]叶东升,贾铁英,牛东翔.浮式LNG气化和接收终端的发展及其对我国LNG进口的启示[J].化工学报,2009,60(增刊1):22-26.YE D S,JIA T Y,NIU D X.Process of LNG floating storage and regasification terminal and the revelation on China LNG import[J].Journal of Chemical Industry and Engineering(China),2009,60(S1):22-26.
[4]董龙飞,李玉星,韩辉.海上晃动对中间介质气化器内部液位波动的影响[J].油气储运,2018,37(1):101-107.DONG L F,LI Y X,HAN H.The research of the wave of liquid level in intermediate fluid vaporizer under sloshing conditions in the sea[J].Oil&Gas Storage and Transportation,2018,37(1):101-107.
[5]刘辉.LNG-FSRU再气化系统及冷能利用研究[D].镇江:江苏科技大学,2016:10-11.LIU H.Study on LNG-FSRU regasification system and utilization of cold energy[D].Zhenjiang:Jiangsu University of Science and Technology,2016:10-11.
[6]陈双双.适用于FSRU的LNG中间流体气化器换热过程研究[D].上海:上海交通大学,2015:37-38.CHEN S S.Study of heat transfer process of LNG intermediate fluid vaporizer applied to FSRU[D].Shanghai:Shanghai Jiao Tong University,2015:37-38.
[7]纪馨,陈双双,林文胜.液化天然气无相变中间流体气化器分析[C].上海:上海市制冷学会2013年学术年会论文集,2013:70-74.JI X,CHEN S S,LIN W S.Analysis of none-phase-change intermediate fluid vaporizer for liquefied natural gas[C].Shanghai:Proceedings of the 2013 Academic Annual Conference of the Shanghai Institute of Refrigeration,2013:70-74.
[8]季鹏,陈振中,李婵,等.浮式接收再气化装置关键系统比选及发展趋势[J].油气储运,2017,36(11):1320-1325.JI P,CHEN Z Z,LI C,et al.Comparison,selection and development trend of FSRU key system[J].Oil&Gas Storage and Transportation,2017,36(11):1320-1325.
[9]PATEL D,MAK J,RIVERA D,et al.LNG vaporizer selection based on site ambient conditions[C].Houston:Proceedings of the LNG,2013:16-19.
[10]MADSEN P H S,KARSTEN D,STRANDE R.Intermediate fluid vaporizers for LNG regasification vessels(SRVs)and FSRUs[C].Houston:Offshore Technology Conference,2010:3-6.
[11]XU S Q,CHENG Q,ZHUANG L J,et al.LNG vaporizers using various refrigerants as intermediate fluid:Comparison of the required heat transfer area[J].Journal of Natural Gas Science and Engineering,2015,25:1-9.
[12]WAYNE W S,POWELL K G.Modification of LNG carriers forrega sification[C].Houston:Off shoreTechnology Conference,2003:7.
[13]KELLE H,WONG Y,SCHLATT J.Floating regasification terminals-selection and marinisation of regasification equipment for offshore use[C].Houston:Offshore Technology Conference,2011:2-7.
[14]SOHN Y,KIM S,YOON I.Conceptual design of LNG FSRU topside regasification plant[C].Rhodes:The Twenty-second International Offshore and Polar Engineering Conference,2012:917-919.
[15]LEE D H,HA M K,KIM S Y,et al.Research of design challenges and new technologies for floating LNG[J].International Journal of Naval Architecture and Ocean Engineering,2014,6(2):307-322.
[16]LEE Y H,KIM Y T,KANG H K.An analysis on the characteristics of regasification system for LNG-FSRU depending on the changes in performance with vaporization and temperature of the heat source[J].Journal of the Korean Society of Marine Engineering,2014,38(6):625-631.
[17]王贵林.LNG-FSRU再气化模块主结构直接计算分析及优化研究[D].大连:大连理工大学,2012:12.WANG G L.Direct calculation analysis and optimization of the main structure of the LNG-FSRU regas module[D].Dalian:Dalian University of Technology,2012:12.
[18]朱明善,王鑫.制冷剂的过去、现状和未来[J].制冷学报,2002(1):14-20.ZHUMS,WANGX.Past,present and future of refrigerants[J].Journal of Refrigeration,2002(1):14-20.
[19]CALMJM,DIDIONDA.Trade-off sinrefrigerant selections:past,present,and future[J].International Journal of Refrigeration,1998,21(4):308-321.
[20]俞炳丰.制冷与空调应用新技术[M].北京:工业装备与信息工程出版中心,2002:13-16.YUBF.New technology of refrigeration and air conditioning[M].Beijing:Industrial Equipment and Information Engineering Publishing Center,2002:13-16.
[21]陈双双,纪馨,林文胜.LNG-FSRU中间流体气化器布置方式对比[J].低温与超导,2014,42(12):66-71.CHEN S S,JI X,LIN W S.Comparison of LNG-FSRU intermediate fluid vaporizers with different disposition[J].Cryogenics&Superconductivity,2014,42(12):66-71.
[2]曾燕丽.浅析中国LNG应用技术发展现状及前景[J].中国石油和化工标准与质量,2012,33(16):242.ZENG Y L.An analysis of the present situation and prospect of the development of LNG application technology in China[J].China Petroleum and Chemical Standard and Quality,2012,33(16):242.
[3]叶东升,贾铁英,牛东翔.浮式LNG气化和接收终端的发展及其对我国LNG进口的启示[J].化工学报,2009,60(增刊1):22-26.YE D S,JIA T Y,NIU D X.Process of LNG floating storage and regasification terminal and the revelation on China LNG import[J].Journal of Chemical Industry and Engineering(China),2009,60(S1):22-26.
[4]董龙飞,李玉星,韩辉.海上晃动对中间介质气化器内部液位波动的影响[J].油气储运,2018,37(1):101-107.DONG L F,LI Y X,HAN H.The research of the wave of liquid level in intermediate fluid vaporizer under sloshing conditions in the sea[J].Oil&Gas Storage and Transportation,2018,37(1):101-107.
[5]刘辉.LNG-FSRU再气化系统及冷能利用研究[D].镇江:江苏科技大学,2016:10-11.LIU H.Study on LNG-FSRU regasification system and utilization of cold energy[D].Zhenjiang:Jiangsu University of Science and Technology,2016:10-11.
[6]陈双双.适用于FSRU的LNG中间流体气化器换热过程研究[D].上海:上海交通大学,2015:37-38.CHEN S S.Study of heat transfer process of LNG intermediate fluid vaporizer applied to FSRU[D].Shanghai:Shanghai Jiao Tong University,2015:37-38.
[7]纪馨,陈双双,林文胜.液化天然气无相变中间流体气化器分析[C].上海:上海市制冷学会2013年学术年会论文集,2013:70-74.JI X,CHEN S S,LIN W S.Analysis of none-phase-change intermediate fluid vaporizer for liquefied natural gas[C].Shanghai:Proceedings of the 2013 Academic Annual Conference of the Shanghai Institute of Refrigeration,2013:70-74.
[8]季鹏,陈振中,李婵,等.浮式接收再气化装置关键系统比选及发展趋势[J].油气储运,2017,36(11):1320-1325.JI P,CHEN Z Z,LI C,et al.Comparison,selection and development trend of FSRU key system[J].Oil&Gas Storage and Transportation,2017,36(11):1320-1325.
[9]PATEL D,MAK J,RIVERA D,et al.LNG vaporizer selection based on site ambient conditions[C].Houston:Proceedings of the LNG,2013:16-19.
[10]MADSEN P H S,KARSTEN D,STRANDE R.Intermediate fluid vaporizers for LNG regasification vessels(SRVs)and FSRUs[C].Houston:Offshore Technology Conference,2010:3-6.
[11]XU S Q,CHENG Q,ZHUANG L J,et al.LNG vaporizers using various refrigerants as intermediate fluid:Comparison of the required heat transfer area[J].Journal of Natural Gas Science and Engineering,2015,25:1-9.
[12]WAYNE W S,POWELL K G.Modification of LNG carriers forrega sification[C].Houston:Off shoreTechnology Conference,2003:7.
[13]KELLE H,WONG Y,SCHLATT J.Floating regasification terminals-selection and marinisation of regasification equipment for offshore use[C].Houston:Offshore Technology Conference,2011:2-7.
[14]SOHN Y,KIM S,YOON I.Conceptual design of LNG FSRU topside regasification plant[C].Rhodes:The Twenty-second International Offshore and Polar Engineering Conference,2012:917-919.
[15]LEE D H,HA M K,KIM S Y,et al.Research of design challenges and new technologies for floating LNG[J].International Journal of Naval Architecture and Ocean Engineering,2014,6(2):307-322.
[16]LEE Y H,KIM Y T,KANG H K.An analysis on the characteristics of regasification system for LNG-FSRU depending on the changes in performance with vaporization and temperature of the heat source[J].Journal of the Korean Society of Marine Engineering,2014,38(6):625-631.
[17]王贵林.LNG-FSRU再气化模块主结构直接计算分析及优化研究[D].大连:大连理工大学,2012:12.WANG G L.Direct calculation analysis and optimization of the main structure of the LNG-FSRU regas module[D].Dalian:Dalian University of Technology,2012:12.
[18]朱明善,王鑫.制冷剂的过去、现状和未来[J].制冷学报,2002(1):14-20.ZHUMS,WANGX.Past,present and future of refrigerants[J].Journal of Refrigeration,2002(1):14-20.
[19]CALMJM,DIDIONDA.Trade-off sinrefrigerant selections:past,present,and future[J].International Journal of Refrigeration,1998,21(4):308-321.
[20]俞炳丰.制冷与空调应用新技术[M].北京:工业装备与信息工程出版中心,2002:13-16.YUBF.New technology of refrigeration and air conditioning[M].Beijing:Industrial Equipment and Information Engineering Publishing Center,2002:13-16.
[21]陈双双,纪馨,林文胜.LNG-FSRU中间流体气化器布置方式对比[J].低温与超导,2014,42(12):66-71.CHEN S S,JI X,LIN W S.Comparison of LNG-FSRU intermediate fluid vaporizers with different disposition[J].Cryogenics&Superconductivity,2014,42(12):66-71.