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化工学报  2015 

基于大冷量斯特林制冷机的LNG加气站BOG再液化回收技术

DOI: 10.11949/j.issn.0438-1157.20150756, PP. 166-171

Keywords: 液化,天然气,回收,加气站,蒸发气,斯特林制冷机

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Abstract:

对比分析了LNG(液化天然气)加气站3种BOG(蒸发气)回收方式,指出采用大冷量斯特林制冷机的BOG再液化回收技术,不仅解决了传统回收方式对天然气管网和CNG(压缩天然气)站的依赖,而且实现了液化天然气储运过程中的"零排放",经济和社会效益显著。在此基础上,探讨了单级整体式斯特林制冷机的制冷能力以及BOG的液化量,试验和计算结果表明:单级斯特林制冷机的制冷量达到1kW@77K和2kW@110K,每月BOG液化能力≥8t,满足了我国小型LNG站BOG回收过程对冷量的需求。

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