首页 > 资料下载 > Marcellus页岩气生命周期温室气体排放Life cycle greenhouse gas emissions of Marcellus shale gas
Marcellus页岩气生命周期温室气体排放Life cycle greenhouse gas emissions of Marcellus shale gas Marcellus页岩气生命周期温室气体排放Life cycle greenhouse gas emissions of Marcellus shale gas

Marcellus页岩气生命周期温室气体排放Life cycle greenhouse gas emissions of Marcellus shale gas

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  • 更新时间:2021-09-09
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这项研究估计了温室气体(GHG)在生产过程中的生命周期排放量。 Marcellus页岩天然气及其与美国全国平均天然气排放量的比较 在马塞卢斯页岩重大开发之前,2008年产生的排放。我们 估计一个典型的Marcellus页岩井的开发和完井将导致 大约5500吨二氧化碳当量排放或约1.8克CO2e/MJ气体 假设对典型井的生产寿命进行保守估计。这个 表示温室气体排放量相对于平均国内气体增加11%(不包括) 燃烧)并且当包括燃烧时,相对于生命周期排放增加3%。 Marcellus页岩天然气生命周期的温室气体排放估计为 63-75g CO2e/MJ产气,平均产气68g CO2e/MJ。 马塞卢斯页岩天然气的温室气体排放量与进口液化天然气相当。 天然气。来自Marcellus页岩的天然气通常具有较低的生命周期温室气体排放 比煤炭用于在没有任何有效碳捕获和储存的情况下发电 工艺,20-50%取决于工厂效率和天然气排放可变性。 由于 生产量和火炬、建筑和运输的多样性。

This study estimates the life cycle greenhouse gas (GHG) emissions from the production of Marcellus shale natural gas and compares its emissions with national average US natural gas emissions produced in the year 2008, prior to any significant Marcellus shale development. We estimate that the development and completion of a typical Marcellus shale well results in roughly 5500 t of carbon dioxide equivalent emissions or about 1.8 g CO2e/MJ of gas produced, assuming conservative estimates of the production lifetime of a typical well. This represents an 11% increase in GHG emissions relative to average domestic gas (excluding combustion) and a 3% increase relative to the life cycle emissions when combustion is included. The life cycle GHG emissions of Marcellus shale natural gas are estimated to be 63–75 g CO2e/MJ of gas produced with an average of 68 g CO2e/MJ of gas produced. Marcellus shale natural gas GHG emissions are comparable to those of imported liquefied natural gas. Natural gas from the Marcellus shale has generally lower life cycle GHG emissions than coal for production of electricity in the absence of any effective carbon capture and storage processes, by 20–50% depending upon plant efficiencies and natural gas emissions variability. There is significant uncertainty in our Marcellus shale GHG emission estimates due to eventual production volumes and variability in flaring, construction and transportation.

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