小型LNG运输船装船过程BOG产生量的计算
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摘要
采用流程模拟软件稳态模块建立小型LNG运输船装船工艺BOG产生量的计算模型,研究LNG原料储罐操作压力、运输船储罐操作压力等因素对装船工艺BOG产生量的影响趋势。并利用流程模拟软件动态模块建立装船工艺的动态模型,模拟LNG运输船船舱储罐温度、压力、回气量等参数随装船时间的变化。模拟结果分析得出:LNG运输船船舱操作压力与LNG原料储罐操作压力的相对差值是决定是否产生BOG的关键参数;合理选择船舱储罐的操作压力,可同时实现LNG供应方和购买方双方共赢的效果。
The calculation model of BOG production in the loading process of small LNG carrier has been established by using the steady-state module of the process simulation software, and the influence trend of the factors such as the operating pressure of storage tank at LNG receiving station and the operating pressure of storage tank on the BOG production of the loading process has been studied. The dynamic model of loading process has been established by using the dynamic module of process simulation software. The parameters of storage tank temperature, pressure and BOG return during the loading process is simulated. The simulation results show that the operation pressure difference between LNG carrier storage tank and LNG tank is the key parameter to influence BOG produced or not, and the LNG carrier storage tank reasonable operation pressure could achieve win-win results for both suppliers and purchasers of LNG.
The calculation model of BOG production in the loading process of small LNG carrier has been established by using the steady-state module of the process simulation software, and the influence trend of the factors such as the operating pressure of storage tank at LNG receiving station and the operating pressure of storage tank on the BOG production of the loading process has been studied. The dynamic model of loading process has been established by using the dynamic module of process simulation software. The parameters of storage tank temperature, pressure and BOG return during the loading process is simulated. The simulation results show that the operation pressure difference between LNG carrier storage tank and LNG tank is the key parameter to influence BOG produced or not, and the LNG carrier storage tank reasonable operation pressure could achieve win-win results for both suppliers and purchasers of LNG.
引文
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[2] 肖超然.槽车装车方式对LNG接收站的影响[J].石化技术,2017,24(11):226.
[3] 贾保印.LNG槽车装车过程BOG产生的动态模拟与分析[J].石油与天然气化工,2018,47(3):49-53.
[4] 冯俊爽,邹惠忠,陈健,等.大型液化LNG运输船C型独立液货舱的设计、制造及试验[J].广东化工,2015,42(22):166-167.
[5] 郝吉鹏,张雷.乙烯装置脱乙烷塔的动态模拟分析[J].化工技术与开发,2013,42(7):51-56.
[6] 张永铭,杨焘,刘博,等.动态模拟在芳烃抽提装置设计中的应用[J].化学工程,2011,39(11):88-91.
[7] 陈文峰,刘培林,郭洲,等.复杂物系压力容器安全阀泄放过程的HYSYS动态模拟[J].天然气与石油,2013,28(6):55-58.
[8] 冯传令,杨勇.原油容器安全阀火灾工况泄放量动态模拟[J].石油工程建设,2006,32(6):9-12.
[9] 杨天宇,朱海山,郝蕴,等.压力容器火灾工况安全泄放质量流量的动态研究[J].石油与天然气化工,2014,43(2):208-212.
[10] 邓励强,吕志军,李宁,等.LNG接收站再冷凝系统稳定性动态模拟研究[J].石油与天然气化工,2016,45(2):33-38.
[11] 郭洲,曾树兵,陈文峰.用动态模拟技术进行油气田工艺处理系统开停工方案的研究[J].天津化工.2013,27(5):20-23.
[12] 周宇罕,杨伟红,蔡主斌,等.LNG接收站BOG系统运行模式优化[J].天然气与石油,2018,33(2):36-40.
[13] 高晓新,王颖,陶阳,等.稳态及动态模拟在丙烷-异丁烷分离中的应用[J].现代化工,2014,34(5):154-156.