化工进展2016，Vol.35Issue(5)：1561-1566,6.DOI:10.16085/j.issn.1000-6613.2016.05.045
液化天然气接收站蒸发气回收优化技术
The optimization of BOG recycling at LNG receiving terminal
摘要
Abstract
With the Dalian liquefied natural gas (LNG) terminal as the example,the boil off gas (BOG) treatment process was analyzed using Aspen software. The combined operations of BOG re-condensation liquefaction and direct compression was proposed,as well as adding pre-cooling device in the re-condensing process . The analysis results show that if the receiving station can supply sufficient amount of LNG stably,the re-condensation process route will be chosen in priority, otherwise the system will be switched to the high-pressure compression process line automatically,and transported LNG to the pipe network directly. In this way,it can resolve the energy waste problem caused by the BOG release due to excess pressure in the tanks and pipelines. In the re-condensation process with the pre-cooling device,37.4% energy consumption can be saved compared with the one without.关键词
液化天然气/蒸发气/再冷凝/直接压缩/预冷Key words
liquefied natural gas (LNG)/boil off gas (BOG)/re-condensed/direct compression/pre-cooling分类
能源科技引用本文复制引用
曹玉春,陈其超,陈亚飞,胡巍亚..液化天然气接收站蒸发气回收优化技术[J].化工进展,2016,35(5):1561-1566,6.基金项目
常州市科协自然基金项目（常科协〔2011〕40号）。 （）
