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天然气与石油 NATURAL GAS AND G
2017年10月
福建LNG接收站BOG再冷凝
工艺优化研究尚谷英杰”
1．中海福建天然气有限责任公司，福建莆田351100；
2.西南石油大学油气藏地质及开发工程国家重点实验室，四川成都610500
摘要：为解决福建液化天然气（Liquified Natural Gas，LNG）接收站蒸发气（BoilingOff Gas， BOG)处理再冷凝系统能耗较高，外输量低时BOG无法全部冷凝等间题，分析再冷凝工艺中的关键操作参数，以降低系统能耗，减小接收站最小外输量，充分利用LNG冷能为出发点，提出利用部分高压泵出口低温LNG对进入再冷凝器前BOG降温的预冷式BOG再冷凝工艺。对BOG再冷凝工艺和预冷式BOG再冷凝工艺进行基于最小外输量的比较，结果：预冷式BOG再冷凝工艺在减小再冷凝系统能耗和降低接收站允许最小外输量方面有显著效果。
关键词：BOG；再冷凝工艺：预冷；最小外输量；优化 D0I :10. 3969/ j. issn. 1006 5539. 2017. 05. 006
OptimizationResearchofBOGRecondensationProcess
inFujianLNGReceivingStation
Shang Mao',GuYingjie
1. CNOOC Fujian Gas Co. , Ltd, Putian, Fujian, 351100, China; 2. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation Southwest Petroleum University, Chengdu, Sichuan, 610500, China
Abstract : In order to solve the problem that the energy consumption of the re-condensation system in the Fujian LNG receiving station is high, and BOG can't be all condensated when the output is low, analysis has been conducted for key operation parameters in re-condensation process. By applying reducing system energy consumption, cutting down the minimum capacity of the receiving station and making full use of LNG cold energy as a start, the pre-cooling type BOG re-condensation process of the low-temperature LNG at the outlet of the partial high-pressure pump before the re-condenser is proposed. Comparison has been mode for BOG re-condensation process and precooling BOG re-condensation process. The results show that the pre-cooling BOG re-condensation process has a significant effect in reducing the energ) consumption of the re-condensation system and reducing the minimum allowable output of the receiving station
Keywords : BOG; Re-condensation process; Pre-cooling; Minimum output; Optimization
收稿日期：201705-29
作者简介：尚卵（1987－），男，河北承德人，助理工程师，主要从事LNG接收站的日常生产及相关设备的预冷、调试工作。
万方数据