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The Environmental Footprint of Natural Gas Transportation: LNG vs. Pipeline

机译:天然气运输的环境足迹:LNG与管道

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Emissions to air from the production and transportation of natural gas is an important aspect of the decision making regarding the new infrastructure development in the offshore natural gas sector. In this study, we estimate the emissions of CO2, NOx, nmVOC and CH4 from extraction, processing and transportation of a unit of dry natural gas from the continental shelf of Norway to consumer markets; and compare the resulting emission intensities of the pipeline value chains, where natural gas is transported in gaseous form, with the LNG (liquefied natural gas) chains, where natural gas is liquefied and shipped by LNG carriers. The analysis substantiates the environmental superiority of pipeline chains over LNG-based chains. However, the comparative analysis of ten pipeline chains highlights the variability of the environmental performance of different chain configurations. The isolated analysis of the transportation segment of the value chains also confirms the superiority of the pipeline transportation over LNG.
机译:自然天然气生产和运输的空气排放是关于近海天然气部门新基础设施发展的决策的重要方面。在这项研究中,我们从挪威大陆架子到消费市场的干燥天然气单位的提取,加工和运输,估计二氧化碳,NOx,NMVOC和CH4的排放;并比较管线值链的产生的发射强度,其中天然气以气态形式运输,液化天然气(液化天然气)链,天然气被液化载体液化并发货。分析证实了基于LNG的链接的管道链的环境优势。然而,十个管道链的比较分析突出了不同链配置的环境性能的可变性。价值链的运输段的孤立分析还证实了液化天然气的管道运输的优势。

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