Fundamental studies of the role of foreign particles and surfaces on gas hydrate growth and propagation

外来颗粒和表面对天然气水合物生长和传播作用的基础研究

• 批准号: 402488-2011
• 负责人: Beltran, Juan
• 金额: $ 1.89万
• 依托单位: Royal Military College of Canada
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=509913
• 关键词: Fundamental; studies; role; foreign; particles

We are faced with an increasing demand for sources of energy. Over the next two decades most of this demand will be met by fossil fuels, although a preference toward natural gas should develop due to its smaller environmental footprint compared to oil or coal. Canada's natural gas production is expected to decline over the next few years, and the current global political climate raises concerns over the security of supply from other parts of the world. An alternative to secure Canada's energy needs for this century is the vast amount of natural gas trapped in the form of gas hydrates. Natural gas stored as hydrate (mostly methane) is found buried under the oceanic sediment and under the permafrost. Conservative estimates suggest that the amount of energy stored in hydrates is at least twice that of all other fossil fuels combined. The enormous quantities of methane stored as solid hydrates are also of environmental concern due to the high global warming potential of methane. It is also possible to design carbon dioxide sequestration strategies based on hydrate technology. Furthermore, the oil and gas industry spends millions of dollars on hydrate formation prevention in pipelines. The research work proposed here intends to provide fundamental information on the interaction of gas hydrates of methane and carbon dioxide (main components of natural gas) with particles and surfaces. Studies of this kind are important in order to understand the behavior of hydrates in nature and to acquire relevant knowledge that will allow economical and environmentally responsible exploitation of hydrate-forming systems. The potential outcome of this research is technologically and scientifically significant for it could place Canada at the vanguard of carbon sequestration efforts and recovery of unconventional energy resources such as gas hydrates.

我们面临着对能源日益增长的需求。在接下来的20年里，这些需求中的大部分将由化石燃料来满足，尽管与石油或煤炭相比，天然气的环境足迹更小，应该会更倾向于天然气。加拿大的天然气产量预计将在未来几年下降，目前的全球政治气候引发了人们对世界其他地区供应安全的担忧。确保加拿大本世纪能源需求的另一个选择是以天然气水合物的形式储存大量天然气。以水合物形式储存的天然气(主要是甲烷)被发现埋在海洋沉积物和永久冻土之下。保守的估计表明，水合物中储存的能量至少是所有其他化石燃料总和的两倍。由于甲烷具有很高的全球变暖潜力，以固体水合物形式储存的大量甲烷也引起了环境问题。还可以设计基于水合物技术的二氧化碳封存策略。此外，石油和天然气行业在管道中防止水合物形成方面花费了数百万美元。这里提出的研究工作旨在提供关于甲烷和二氧化碳的气体水合物(天然气的主要成分)与颗粒和表面相互作用的基本信息。这类研究对于了解水合物在自然界中的行为并获得相关知识是重要的，这些知识将使对水合物形成系统的经济和环境负责的开发成为可能。这项研究的潜在结果具有重大的技术和科学意义，因为它可能使加拿大成为碳封存努力和天然气水合物等非传统能源回收的先锋。